semiconductor radiation detectors short form catalog - Envinet a.s.

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SEMICONDUCTOR RADIATION DETECTORS
SHORT FORM CATALOG

ORTEC Semiconductor Radiation Detectors Short Form Catalog
The invention of semiconductor photon detectors based on large cryogenically cooled germanium and silicon diodes
began in the 1950’s. Today ORTEC offers the widest range of semiconductor photon detectors up to very large crystal
sizes.
These detectors are capable of very high energy resolution and since their invention have proved highly desirable in
many applications, most recently in relation to homeland security where, the “gold standard” in these measurements is
considered to be a high purity germanium (HPGe) detector.
Classically, cooling for germanium and silicon semiconductor photon detectors has been implemented by the use of
liquid cryogens, most commonly liquid nitrogen. Since the mid 1980’s ORTEC has pioneered the use of mechanical
coolers, at this date having delivered more mechanically cooled HPGe detectors than all other manufacturers combined.
ORTEC HPGe detectors are now in use world-wide in applications as diverse as nuclear structure physics and the
prevention of illicit nuclear materials trafficking at the world’s largest ports of commerce.
ORTEC introduced the first silicon surface barrier detectors for charged particle spectroscopy in the early 1960’s when
the company was starting out. A broad product range to cover a wide variety of applications rapidly developed. Today
there are no fewer than 13 product lines of semiconductor charged particle detectors available from ORTEC for a wide
range of applications.
This short form catalog is intended to provide overview information to aid in the initial consideration of either HPGe
photon detectors or silicon charged particle detectors. Further applications information and detailed product
Contents
Part A: Photon Detectors..................................2
Benefits and Specifications Common to All
ORTEC HPGe Photon Detectors .....................3
GEM and Profile GEM......................................3
Profile Series GEM...........................................3
GAMMA-X (GMX) ............................................4
GWL Series HPGe Well ...................................4
GLP and SLP....................................................5
Detectors for Special Applications....................6
Safeguards and Non-Destructive Assay...........6
PINS-GMX........................................................6
Lung Monitor.....................................................6
Pipe Gage Monitor............................................6
Shallow-Hole Probe..........................................7
Submergible Photon Detector ..........................7
Configuration Guidelines ..................................8
X-COOLER II .................................................10
Detector Options.............................................11
All-in-One Spectrometer Solutions .................12
IDM .................................................................12
Micro-trans-SPEC...........................................12
trans-SPEC-DX-100T .....................................13
Part B: Charged Particle Detectors ................14
ULTRA and ULTRA-AS...................................14
ULTRA CAM ...................................................14
R Series..........................................................15
Heavy Ion Detectors .......................................15
Backscatter Detectors ....................................15
Totally Depleted ..............................................15
Partially Depleted ...........................................15
BETA-X Cooled Spectrometer ........................16
Charged Particle Detector Data Summary and
Selection Chart...............................................16
Charged Particle Detector Mounting ..............17
specifications are available from the ORTEC Website, which is frequently
referenced throughout this document.
Part A: Photon Detectors
Getting Started. . . how to make the right choice of
photon detector?
Choosing the correct detector for your specific application involves many
criteria. The recommendations in our “How to Choose” document are
intended to guide a user to the detector likely to be best suited for the
application.
Download the Guide at
www.ortec-online.com/download/How-to-Choose-Detector.pdf
Here you will learn the relevance of all of the following in your application
choice:
• N- or P-type?
• Detector size?
• Relative versus absolute efficiency?
• Resolution?
• Peak to Compton Ratio?
• Count rate limits?
• Low background detectors?
• Sample geometry?
. . . and much more
Categories of Semiconductor Photon Detectors
ORTEC offers a wide range of semiconductor photon detectors and
options which cover energies for x rays in the few hundred eV range up to
gamma rays in the 10 MeV and above. As appropriate, these detectors are
made of high purity germanium (HPGe of both P and N type), or lithium
drifted silicon (SiLi). All of these must be cryogenically cooled.
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Benefits and Specifications Common to All ORTEC HPGe Photon Detectors
• Wide range of efficiencies, to 150% in P-type and 100% in N-type, even higher on request.
• Excellent energy resolution and peak symmetry.
• Specified crystal dimensionns in Profile models.
• SMART bias option. See page ?
• Harsh Environment (-HE) option. See page ?
• Low Background carbon fiber endcap options. See page ?
• PLUS preamplifier option for ultra-high-rate applications. See page ?
• Huge configuration flexibility with PopTop, Streamline, and mechanically cooled options.
GEM and Profile GEM Detectors
The majority of Gamma Spectroscopy applications, such as those
found in counting laboratories, involve the energy range ~40 keV
upward.
GEM and Profile Series GEM detectors are coaxial germanium
detectors with a conventional diffused lithium outer contact of
~700 micron which makes them suitable for spectroscopy from
around 40 keV. The inner contact is a boron ion implant. The FX
series of Profile GEMs feature a proprietary thin front entrance
window equivalent to about 10 micron of germanium, allowing
spectroscopy at ~10 keV and above. GEM detectors are specified
in terms of relative efficiency at 1.33 MeV (ref. IEEE 325), whereas
Profile Series GEM detectors are specified by crystal dimensions,
allowing an optimum choice to be made for a specific application
need.
Configuration information on GEM detectors may be downloaded at
www.ortec-online.com/download/GEM.pdf
Profile Series GEM Detectors
As shown in the figure to the right, detectors of widely different
shapes can have the same relative efficiency according to the
usual standard (IEEE-325), yet quite clearly detector 1 or 2 is a
better counting geometry for the example shown.
The unique ORTEC Profile Series Detectors match the detector
crystal to the needs of the application, providing the best possible
counting geometry to fit your sample:
• Profile F Series: large diameter to length ratio for "area
samples" such as filters, Petri dishes, and bottles. Ideal for
waste assay applications with large area samples.
• Profile M Series: ~1:1 diameter to length. Ideal for Marinelli
beakers, available in a variety of endcap diameters to fit your
favorite beaker size.
• Profile FX and MX types: same dimensions as the basic F or
M Series, but featuring ultra thin entrance window, useable to
below 15 keV.
Configuration information on Profile Series GEM detectors may be
downloaded at www.ortec-online.com/download/PROFILE.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
GAMMA-X (GMX) Detectors
GAMMA-X N-type coaxial HPGe detectors are made for highperformance
gamma spectroscopy in the energy range ~3 keV and
upwards.
These detectors are coaxial Germanium (Ge) detectors with an
ultra-thin entrance window. While most coaxial detectors have
entrance windows from 500- to 1000-µm thick, the entrance
window of these detectors is a 0.3-µm-thick, ion-implanted contact,
extending the lower range of useful energies to around 3 keV. Ion
implantation results in a totally stable contact which will not
deteriorate with repeated cycling. Moreover, N-type HPGe detectors
have been shown to be resistant to damage by fast neutrons.
Special advantages of GAMMA-X Series:
• Ultra-thin boron ion implanted radiation window allows for
spectroscopy from 3 keV upwards.
• Ideal for Compton Suppression systems.
• Neutron damage resistant; user self-repair neutron damage option.
• Be window supplied with protective cover; Al or carbon fiber window option available at no additional charge.
• Low background carbon fiber endcap options.
Configuration information on GMX detectors may be downloaded at www.ortec-online.com/download/GAMMA-X.pdf
GWL Series HPGe Well Detector
ORTEC GWL Series High-Purity Germanium (HPGe) Well
Detectors are a good solution for low level counting of small
samples. The unique ion-implanted detector well has an ultra-thin
dead layer (only 0.3 µm thick), and therefore provides the most
extensive useful energy range (10 keV to 10 MeV). ORTEC Well
Detectors have a “blind hole” with at least 5 mm of active
germanium at the bottom of the hole. This near 4 π geometry
provides the maximum absolute counting efficiency available. The
large well (1.55-cm diameter and 4.0-cm long) accommodates an
extensive range of sample sizes. Like all of ORTEC’s HPGe photon
detectors, the HPGe Well detector may be stored or cycled
repeatedly to room temperature without performance degradation.
GWL Series feature:
• Near 4 π geometry; high absolute counting efficiency for small
samples.
• Spectroscopy from 10 keV to 10 MeV.
• Active Volumes to 400 cc.
• Unique ion-implanted blind well.
• Extra-large well (1.55 x 4.0 cm) standard
Configuration information on GWL detectors may be downloaded at
www.ortec-online.com/download/GWL.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
GLP and SLP Detectors
GLP and SLP Series fall within the category of “low energy photon
spectrometers”. These detectors feature planar or semi-planar
crystal geometry, which because of reduced capacitance, allows
outstanding energy resolution at low energy. Each has a thin or
ultra thin entrance window.
Typical applications are:
• GLP Series: nuclear safeguards, x-ray diffraction.
• SLP Series: energy dispersive x-ray analysis associated with
electron microscopy.
Configuration information on GLP and SLP detectors may be
downloaded at:
www.ortec-online.com/download/GLP.pdf
www.ortec-online.com/download/SLP.pdf
Gamma Spectroscopists: Choose the tool that fits.
…. Select the best HPGe Detector for Your Application
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
ORTEC HPGe Detectors for Special Applications
High Performance Germanium (HPGe) Detectors for Safeguards and Non-Destructive Assay
The ORTEC Safeguards series includes both coaxial and planar
geometry detectors. Specifically designed to meet the demands
of the applications software used for isotopic ratio determination,
these detectors have been developed to strike an optimum
balance between low-energy resolution and high-energy
efficiency.
Configuration information on Safeguards GEM (coaxial) and
Safeguards Planar detectors may be downloaded at:
www.ortec-online.com/download/Safeguards-GEM.pdf
www.ortec-online.com/download/Safeguards-Planar.pdf
The 90 to 130 keV region of a typical plutonium spectrum.
PINS-GMX Portable Isotopic Neutron-Spectroscopy GAMMA-X Detector
The Portable Isotopic Neutron-Spectroscopy GAMMA-X (PINS-GMX) detector was
created from a joint development of ORTEC and the Idaho National Engineering
Laboratory* (INEEL) in response to the growing worldwide need to determine in-situ
the specific nature of the contents of a variety of containers of munitions or potential
chemical weapons. Such applications require a detector with high resolution over a
large range of energy, portability, neutron damage resistance, reliability, and ease of
use. The performance of the PINS-GMX detector has been verified in real-world use
by the U.S. Army.
Download the PINS GMX data sheet at www.ortec-online.com/download/PINS-GMX.pdf
ACTINIDE-85 HPGe Lung Monitor Detector
ACTINIDE-85 is a high-resolution, high-purity germanium detector designed specifically for lung
burden and whole body counting applications. It is based on the PROFILE FX-85, which employs a
proprietary thin radiation entrance window (~10 microns Ge equivalent), in order to maximize lowenergy
efficiency. The unique detector design combines large area and excellent energy resolution
across a wide range of energy, with excellent peak shape.
Download the Actinide-85 data sheet at www.ortec-online.com/download/Actinide.pdf
PGM-1 Pipe Gage Monitor
The ORTEC Pipe Gage Monitor (PGM-1) is designed to monitor fluid/vapor density in nuclear reactor coolant piping.
Other applications include activated corrosion products monitoring, activation analysis of sulphur in coal slurry, and and
stack monitoring.
• Compact (6-1/2 in. x 20 in. maximum dimensions).
• Lightweight detector/dewar package 8–10 lb stainless steel shroud 25 lb aluminum
shroud 12 lb.
• Foam-rubber insulation reduces shock.
• External connections for in-situ LN 2 refilling.
• Military specification electrical connections.
• Water resistant.
Download the PGM-1 Pipe Gage Monitor data sheet at www.ortec-online.com/download/PGM.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
SHP-1 Shallow-Hole Probe
The ORTEC Shallow Hole Probe (SHP-1) is designed for surveying shallow bore holes in and around mine and
mill tailing dumps and land fills, formerly utilized nuclear materials facilities, and other waste management sites.
• Compact Size fits into 3.5 inch diameter hole when used with 70-mm endcap detector.
• Weight ~12 lbs.
• Can withstand 100% humidity, non-condensing.
• ~16 hours LN 2 holding time with 70-mm endcap detector.
• Available with GEM, GMX, GLP, SLP, PROFILE, or Safeguards detector types.
• 100 ft. operating depth.
• Complete with eye hook or attachment for cable rigging.
Download the SHP-1 Shallow Hole Probe data sheet at www.ortec-online.com/download/SHP.pdf
SPD-1 Submergible Photon Detector
The ORTEC Submergible Photon Detector (SPD-1) is designed for nuclear fuel element scanning in storage
pools. The SPD-1 is useful in other simular applications that require a totally waterproof, submergible photon
detector for shallow depth pools.
• Compact size (37-in. long and 12-in. diameter).
• Weight: 100 lbs.
• Totally waterproof, submergible.
• LN 2 refillable without opening the shroud cover.
• Split-ring lead shield for shielding and negative buoyancy.
• HPGe coaxial detector.
• Preamp, H.V. filter, LN 2 level probe, and H.V. cutoff protection included.
• 30-foot operating depth.
• Stainless steel shroud for easy cleaning and decontamination.
• Thin (30 mil) side window in shroud to enable low energy photon (≥50 keV) spectroscopy.
Download the SPD-1 Submergible Photon Detector data sheet at
www.ortec-online.com/download/SPD.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Configuration Guidelines
PopTop or Streamline (non-PopTop) Configuration
The essence of a detector cryostat system is that the
HPGe detector element, preamplifier, and high
voltage filter are housed in a detector “capsule” which
is then attached to an appropriate cryostat.
In a “Pop Top” configuration (unique to ORTEC) the
capsule is demountable from the cryostat itself. In socalled
“Streamline” systems on the other hand, the
detector capsule is NOT demountable. Detector
capsule and cryostat share the same vacuum. In
configuration terms, this requires a cryostat or
cryostat/dewar selection with the cryostat having a
matching diameter to the capsule endcap. A cryostat
must always be ordered with a Streamline capsule,
because they are integral.
The actual PopTop capsule has its own vacuum. It
can be mounted on any of the available cryostats,
cryostat/dewar combinations, or the X-COOLER II mechanical cooling system
Steps to Configure Your ORTEC HPGe Detector
1) Configure the Detector Model
• Capsule type (PopTop or Streamline)
• Ge Crystal efficiency and specifications
• Endcap and window
• Mount
• Preamplifier
• High Voltage Filter
• Cable Package
Options are available for the detector model that can change specific materials used in the construction of the detector
endcap, cup, and mount. Preamplifier options are also available.
2) Configure the Cryostat/Dewar Model
All HPGe and SiLi photon detectors must operate at cryogenic temperatures close to the boiling point of liquid nitrogen.
The detector element must be in a cryostat of some kind. ORTEC offers the broadest range of cryostat options.
• Vertical Dipstick style (separate Dewar)
• Horizontal Dipstick style (separate Dewar)
• Portable with all-position or multi-position cryostat/dewar models
• Downlooking designed to be oriented with the detector pointing down
• Sidelooking designed to be oriented with the detector horizontal at the bottom of the dewar
• “J” configurations designed with the detector attached near the bottom of the dewar and a right angle bend in the
cryostat orienting the detector to look up.
A cryostat and dewar or other cooling device are required for operation.
If a PopTop detector has been selected, you can choose a PopTop style cryostat, cryostat/dewar combination or the
X-COOLER II mechanical cooler.
If a Streamline detector has been selected, you must choose a cryostat or cryostat/dewar model for the detector to be
mounted on and vacuum sealed. The cryostat or cryostat/dewar combination diameter must match the endcap diameter
of the selected detector.
Full details of standard cryostat options and how to specify them are given in the downloadable configuration guides
referenced above for the different detector types. Illustrative information is provided below but refer to configuration
guides for dimensional data and ordering information.
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Illustrations of Cryostat Options
Horizontal Cryostat (Dipstick
type) with 30 liter dewar.
Horizontal Cryostat (Dipstick type) with
30 liter offset port dewar.
Vertical Cryostat
(Dipstick type) with 30
liter dewar.
Down-Looking Cryostat
with 30 liter dewar.
Side-Looking Cryostat with dewar.
Down-Hole Probe
Cryostat.
Storage/Fill Dewar for Portable Cryostats.
Portable Multi-Orientation Cryostat.
Portable Gamma Gage Cryostat.
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
The X-COOLER II Cooling Option
Replaces Liquid Nitrogen refrigerant for counting lab applications.
• No Limit to Detector Size.
• For HPGe Detectors within a Wide Range of Gamma Spectroscopy
Applications.
• Compatible with All ORTEC HPGe Detector Types.
• Lightweight and Compact Design.
• Low Power Operation (less than 400 W).
• Field Replaceable: Retrofits to Existing Detectors and is Easily
Maintained.
• Cool HPGe Detectors Anywhere There’s Electricity!
• No Dewar Filling Operations.
• No LN 2 Safety Hazard.
• No Bulky Storage Tanks or unwieldy Plumbing Systems.
• A Truly Economical Alternative to Liquid Nitrogen.
Download the X-COOLER II data sheet at www.ortec-online.com/download/X-COOLER-II.pdf
Compton-Suppression Counting Systems
Compton-Suppression Systems are used to reduce the background
continuum for low-background counting. This reduction improves the MDA
and overall spectrum quality especially for small volume samples such as
air filters and petri dishes.
ORTEC has supplied dozens of Compton-Suppression Systems throughout
the world to meet the demanding needs of very low background counting
applications. Our vast experience in this field is based upon the study of a
variety of HPGe detectors with a range of performance parameters in
efficiency, resolution, and Peak-to-Compton values. From these studies, we
have determined the combination which yields the overall best performance
for these systems.
Download the Compton-Suppression Counting System data sheet at
www.ortec-online.com/download/Compton-Suppression.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
HPGe Detector Options
Carbon Fiber Window Option (-CW)
A carbon fiber window is available for energies greater than about 8 keV. While this window does not pass all the lower
energies, carbon fiber has lower Z than Al and does not have any of the hazards associated with Be.
Low-Background Carbon Fiber Endcap Options (-RB, -LB-C, and -XLB-C)
Carbon Fiber is as strong as Al, Mg, and Cu, creates less background, does not corrode, and can
detect energies less than 10 keV.
This lower background material allows for lower Minimum Detectable Activity (MDA) for a specific
counting time, which provides another step in increasing sample throughput in low-background
counting applications. The lower Z of Carbon Fiber provides a low-energy window without the
additional background found in most alloys.
Low-Background Be/Cu Endcap Options (-RB-B, -LB-B, and -XLB-B)
If the ultimate in low energies is required, a low-background, high purity Be window can be
installed in a Cu endcap to minimize the background and still allow energies as low as 3-keV
through the front window of the detector.
Download the low-background options data sheet at www.ortec-online.com/download/Low-Background.pdf
Harsh Environment Option (-HE)
The Harsh Environment option is a rugged carbon fiber endcap with a sealed
electronics housing featuring a replaceable desiccant pack which ensures that the
electronics stay 100% dry and indicates when it needs to be replaced.
Download the -HE harsh envirnonment detector option data sheet at
www.ortec-online.com/download/HE.pdf
Remote Preamplifier Option (-HJ)
This option allows all the preamplifier and high voltage connections to be outside a shield and removes the preamplifier
and high voltage filter from the “line-of-sight” to the Ge crystal. For low background applications, this option eliminates
any possible preamplifier or high voltage filter components that may add to the background inside a shield.
Ultra-High Count-Rate Preamplifier Option (-PL)
The Ultra-High Count-Rate Preamplifier (transistor-reset preamplifier), which can handle input count rates up to
1,000,000 counts/s at 1 MeV, offers the added benefit of having no feedback resistor.
Download more information on detector preamplifiers at www.ortec-online.com/download/About-Detector-Electronics.pdf
SMART-1 Option (-SMP and -SMN)
The SMART-1 option monitors and reports on vital system functions, and can
save authentication codes and report the code at a later time. It has the high
voltage included, so none of the instruments require an external high-voltage
power supply.
The SMART-1 is housed in a rugged ABS molded plastic enclosure and is
permanently attached to the detector endcap via a molded-strain-relieved
sealed cable. This eliminates the possibility that the detector will suffer severe
damage from moisture leaking into high-voltage connectors. The SMART-1 can
be positioned in any convenient place and does not interfere with shielding or
other mounting hardware.
Download the SMART-1 detector option data sheet at
www.ortec-online.com/download/SMART-1-SMART-INTERFACE.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
All-in-One Spectrometer Solutions
The all-in-one HPGe Gamma Spectrometer is a recent and growing innovation from ORTEC. Our rapid development of
electromechanical cooling for these systems has been the enabling technology.
An all-in-one integrated HPGe spectrometer offers great benefits in many applications:
• No liquid nitrogen coolant required.
• Simplicity of operation.
• Compact Size.
• Possible Portability.
• Increased reliability due to fewer interconnecting cables.
• Thermally efficient Stirling coolers reduce waste heat.
Interchangeable Detector Module (IDM)
Ideal for applications such as waste assay and portal monitoring systems.
• Large area 85 mm x 30 mm HPGe crystal.
• High-reliability Stirling cycle cooler cools rapidly to operating temperature.
• Hardened cryostat designed for long operational life.
• Can be temperature cycled at any time, even from partial warm up.
• High performance, digitally stable signal processing.
• “Hot swap” of IDM modules while in operational state – reduced
downtime.
• USB 2.0 data communications.
• Continuous data collection, no dead spots, using list mode.
• Low power consumption.
• Low Frequency Rejector (LFR) improves spectrum resolution in noisyenvironments.
Download the IDM data sheet at www.ortec-online.com/download/IDM.pdf
Micro-trans-SPEC Ultra Light, Battery-Powered, Portable, LN 2 -Free, HPGe Gamma Spectrometer
The quality of a laboratory HPGe spectrometer in a convenient field-proven package.
• Amazingly light 15 lb (6.8 kg).
• Tough — Enclosure, Display, and all connections sealed against moisture
and dust.Water spray resistant.
• High Sensitivity — 50mm Ø x 30mm HPGe detector.
• High Stability — Digital electronics.
• Bright and Clear — VGA display with touch sensitive operator screen.
• Smart — On board ROI-based Nuclide ID and activity calculation.
• Well Connected — USB 2.0 and Wireless 802.11, GPS, and SD card storage
of acquired spectra.
• Flexible — Multiple choice of power sources: internal and external battery,
automobile power, line power; all with automatic switchover.
• No LN 2 Required — Miniature, high-efficiency, "run for ever" Stirling-cycle cooler; detector element is sealed in a
high-reliability, low-loss cryostat.
Download the Micro-trans-SPEC data sheet at www.ortec-online.com/download/Micro-trans-SPEC.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
trans-SPEC-DX-100T Battery Powered Portable HPGe Gamma Spectrometer
In-situ High Purity Germanium (HPGe) gamma spectroscopy, in a digital, battery powered instrument.
• No LN 2 — Miniature, high-reliability, "run for ever" Stirling-cycle cooler
eliminates the need for LIQUID NITROGEN; detector element is
encapsulated in high reliability, low loss, all-metal sealed cryostat.
• High Sensitivity — Large (>40% relative efficiency) HPGe detector.
• High Stability — Digital electronics give you the solution for the toughest
analysis in the toughest conditions.
• Bright and Clear — VGA resolution display with touch sensitive operator
screen.
• All-in-one Integrated Package — Rugged and compact with no
interconnections — easy to setup and go.
• Smart — Nuclide ID and activity calculation for nine Regions of Interest
(ROI).
• Well Connected — USB 2.0 and Wireless 802.11 Communications, builtin
GPS, and Secure Digital Input/Output (SDIO) storage of acquired
spectra.
• Flexible — A variety of power sources can be used, including internal battery, supplemental external battery,
automobile battery (any 12 V dc), and line power; all with automatic switchover.
Download the trans-SPEC-DX-100T data sheet at www.ortec-online.com/download/Trans-SPEC-DX-100T.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Part B: Charged Particle Detectors
Introduction to Silicon Charged Particle Detectors
ORTEC introduced the first silicon surface barrier detectors for charged particle spectroscopy in the early 1960’s when
the company was starting out. A broad product range to cover a wide variety of applications rapidly developed. Today
there are no fewer than 13 product lines of semiconductor charged particle detectors available from ORTEC for such
diverse applications as:
• Low background, high resolution alpha and beta spectroscopy of environmental and radiochemical samples.
• High resolution charged particle spectroscopy in nuclear physics, chemistry and space physics.
• Particle identification in time of flight telescopes.
• Particle backscattering.
• Heavy ion spectroscopy and time-of-flight.
• Medium-energy charged particle spectroscopy.
• Charged particle energy and position determination.
• High resolution beta spectroscopy.
Silicon Detectors for Alpha Spectroscopy
The most common areas of application of Alpha Spectroscopy are in radiochemistry and the screening of health physics
and environmental samples.
The silicon detectors of choice for these applications are ULTRAs with a depletion depth of ≥100 microns and ULTRA-AS
detectors for ultra-low background applications.
Many installations still use reliable Ruggedized (R-Series) Surface Barrier Detectors, which are both low-background and
light tight.
ULTRA and ULTRA-AS Ion-Implanted Detectors
• The standard for charged-particle detector spectroscopy.
• Ultra-thin entrance contact for optimum energy resolution.
• High geometric efficiency due to close detector-to-can spacing.
• Rugged and reliable.
• Gold-plated cans for contacts that last a lifetime.
• Advanced surface passivation for total device stability.
• ORTEC quality and reliability.
• Bakeable at 200°C (require special order).
• Low-background version (ULTRA-AS) for alpha spectroscopy.
Download the ULTRA and ULTRA-AS Ion-Implanted Detector data sheet at www.ortec-online.com/download/ULTRA.pdf
ULTRA CAM Detectors for Continuous Air Monitoring
• Alpha and beta continuous air monitoring (counting in adverse environment).
• Rugged and reliable.
• Ion-implanted front contact.
• Protective polymer front-contact coating.
• Low bias voltage.
• Advanced surface passivation for total device stability.
Download the ULTRA CAM Detector data sheet at www.ortec-online.com/download/Ultra-CAM.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
R Series Ruggedized Partially Depleted Silicon and Low Background (See No Alpha) Detector
Main Application: Charged-particle spectroscopy in vacuum or in air with ambient light; cleanable.
R Series detectors are available in a “SEE-NO-ALPHA” version. Detectors delivered will have been checked for noise,
and the resolution specification is warranted. To guard against backscattering contamination, the detector will not have
been exposed to an alpha source.
Download the R Series Detector data sheet at www.ortec-online.com/download/R-Series.pdf
Silicon Detectors for Research
The selection of appropriate charged particle detectors for nuclear and atomic physics is experiment dependent.
Heavy Ion Detectors
D Series Planar Totally Depleted Silicon Surface Barrier Detectors
Main Application: Time-of-Flight measurements with heavy ions.
Download the D Series Detector data sheet at www.ortec-online.com/download/D-Series.pdf
F Series Heavy-Ion Partially Depleted Silicon Surface Barrier Detectors
Main Application: Heavy-Ion spectroscopy.
Download the F Series Detector data sheet at www.ortec-online.com/download/F-Series.pdf
Backscatter Detectors
C Series Annular Partially Depleted Silicon Surface Barrier Detectors
Main Application: Backscattering from a collimated source or beam target; angular correlation measurements.
Download the C Series Detector data sheet at www.ortec-online.com/download/C-Series.pdf
High Energy Detectors
L Series Room Temperature Lithium Drifted Silicon Detectors
The L Series meets a persistent need of high-energy physicists for up to 5-mm-thick Si detectors that can completely
stop 25-MeV protons, 100-MeV alphas, or other highly penetrating particles. These devices have good radiationdamage-resistance
characteristics. They are supplied in an L Mount unless otherwise specified. The transmission-type
mount is available on special request. Warranty is one year at room temperature.
Download the L Series Detector data sheet at www.ortec-online.com/download/L-Series.pdf
Totally Depleted Charged Particle Detectors
B Series Totally Depleted Silicon Surface Barrier Detectors
Main Application: Particle identification, telescopes of detectors, any type of ΔE measurements. In addition to ΔE/Δx
experiments, the uniformly high field of B Series detectors makes them the best choice for rise-time discrimination or for
precision timing experiments. These detectors are also useful in any experiment where an A Series detectors is used;
B Series detectors are preferable if radiation damage is likely.
Download the B Series Detector data sheet at www.ortec-online.com/download/B-Series.pdf
Partially Depleted Charged Particle Detectors
A Series Partially Depleted Silicon Surface Barrier Detectors
Main Application: High-resolution charge-particle spectroscopy.
Download the A Series Detector data sheet at www.ortec-online.com/download/A-Series.pdf
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Electron and X-Ray Spectroscopy Detectors
BETA-X Cooled Spectrometer
• Excellent spectroscopy for up to 2-MeV electrons and 20-keV
x rays.
• 4-1/2-in. ConFlat ® flange permits insertion of a source or
connection to a beam tube.
• Contains reliable 10-mm diameter, 5-mm thick Si(Li) device.
• Room temperature storage.
• High-voltage shutoff protection.
Download the BETA-X data sheet at www.ortec-online.com/download/BETA-X.pdf
Charged Particle Detector Data Summary and Selection Chart
Series
ULTRA†
ULTRA AS†
Chief Application
High-resolution, high-efficiency
alpha and beta spectroscopy
Ultra-low background highefficiency
alpha spectroscopy
ULTRA CAM† Alpha and beta continuous air
monitoring (counting in adverse
environment)
A
B
C
D
F
L
R
High-Resolution charged-particle
spectroscopy (Nuclear Physics and
Chemistry-Space Physics)
Particle identification, telescopes
of detectors (Nuclear Physics and
Chemistry-Space Physics)
Backscattering from a collimated
source or beam target-angular
correlation measurements
(Nuclear Physics)
Time-of-flight measurements with
heavy ions (Nuclear Physics)
Heavy-ion spectroscopy (Nuclear
Physics)
Medium-energy proton (25 MeV)
and other charged-particle energy
spectroscopy
Charged-particle spectroscopy
operable in air and ambient light
Starting
Material
Range of
Active Area
(mm 2 )
Warranted
Operating
Temperature
Range*
Range of Active
Thickness (µm)
Si 25–3000 100–500 +60°C to –196°C
(LN 2 )
Si 300–1200 100 +60°C to –196°C
(LN 2 )
Si 300–2000 100
(Deeper detector
requires special
order)
Diode Structure
Implanted Boron —
N-type Si Implanted
As Partial Depletion
Implanted Boron —
N-type Si Implanted
As Partial Depletion
+60°C to –196°C Implanted Boron —
N-type Si Implanted
As Partial Depletion
Si 25–450 1000–2000 +25°C to –30°C‡ Gold — N-type Si
Aluminum
Partial Depletion
Si 50–450 150–2000 +25°C to –30°C‡ Gold — N-type Si
Aluminum
Total Depletion
Si 50–450 100–1000 25°C to –30°C‡ Gold — N-type Si
Aluminum
Partial Depletion
Si 10–450 15–100 10°C to 25°C Gold — N-type Si
Aluminum
Total Depletion
Planar
Si 100–900 ≥60 +25°C to –30°C‡ Gold — N-type Si
Aluminum
Partial Depletion
High Field Strength
Si (Lithium
compensated)
Beta-X§ High-resolution beta spectroscopy Si (Lithium
compensated)
25–200 5000 +25°C to –196°C
(LN 2)
Gold — Lithium
Compensated
P-type Si
Lithium (diffused)
Si 50–2000 100–500 +25°C to –30°C‡ Aluminum —
P-type Si
Gold
Partial Depletion
80 5000 –196°C (LN2) Gold — Lithium
Compensated —
P-type Si
Lithium (diffused)
Nominal Structure**
Stopping Power of
Wndows
Entrance
500 Å Si
500 Å Si
N/A
800 Å Si
Exit
800 Å Si 2250 Å Si
800 Å Si 2250 Å Si
800 Å Si 2250 Å Si
800 Å Si
2000 Å Si
2300 Å Si
2000 Å Si
* All resolution measurements are performed and warranted at 21 ±°C.
** Measured with 5.486-MeV natural alpha particles.
† ULTRA series detectors are manufactured by ion-implantation silicon-dioxide passivated technologies. Versions bakeable at 200°C available on special order.
‡ Available with special cryogenic mount capable of cycling down to LN 2 temperature.
§ The Beta-X detector is offered in a sealed cryostat.
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
Silicon Charged Particle Detector Mounting Arrangements
The letter indicating the type of mount for a silicon charged particle detector is not necessarily the same as the letter
indicating the detector type; for example, a B Series surface barrier detector is never supplied in a B mount.
Here is a brief description of the different mounts and the detectors with which they can be mated:
A This is a "ring mount"; i.e., the silicon wafer is offered on its ring without output connectors. This infrequently used
arrangement is available on special request and only with A, B, C, F, R, and ULTRA Series. ULTRA-AS and ULTRA-
CAM detetors are not available mounted in this manner.
B This mounting arrangement (Microdot connector on the rear of the can) is by far the most popular and is offered with
A, F, and R Series, and ULTRA, ULTRA-AS and ULTRA CAM detectors.
C This mounting arrangement (BNC connector on the rear of the can) is also popular and is offered with A, F, and R
Series, and ULTRA, ULTRA-AS and ULTRA CAM detectors.
E This is a special type of transmission mount in which four screws can be carefully adjusted to avoid excessive
pressure on particularly fragile silicon wafers. Very thin (≤25 µm) D Series, special large-area B Series (active area
≥900 mm 2 ), and a few special detectors are provided in an E mount.
L This mounting arrangement (BNC connector on the back of
the can) is used exclusively with L Series detectors.
T This mounting arrangement (Microdot on the side of the can)
is used in two cases:
1. This is the mounting arrangement routinely supplied with
B, C, and D Series (>25 µm) detectors.
2. ULTRA, ULTRA-AS and R Series detectors in 576A
Alpha Spectrometer modules having a horizontal sample
tray. For this application, only one side of the can has an
Choice of Mounts for Each Detector Series
Detector Series Specification Mount
ULTRA and ULTRA-AS 600 mm 2 and below B, C, or T (closed back)
ULTRA and ULTRA-AS above 600 mm 2 B or C
ULTRA CAM
B or C
A
A, B, or C
B
A or T (open back)
C
A or T (open back)
D 15 µm to 25 µm E
D 40 µm to 100 µm A or T (open back)
F
L
R
A, B, or C
L
A, B, C, or T (closed back)
Silicon Charged Particle Detector Mounts
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
opening.
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ORTEC Semiconductor Radiation Detectors Short Form Catalog
ORTEC
®
www.ortec-online.com
Tel. (865) 482-4411 • Fax (865) 483-0396 • ortec.info@ametek.com
801 South Illinois Ave., Oak Ridge, TN 37831-0895 U.S.A.
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Specifications subject to change
113011