Neutron Source - FRM II - Technische Universität München

Sample Environment
• High temperature furnace
• Deformation-rig with heating
• Magnet (horizontal and vertical)
• Sample changer with thermostat
• Cryostat
Technical Data
Primary beam
• S-shaped neutron guide (NL 4a),
50 mm × 50 mm
• Mechanical velocity selectors with variable
speed
1) ∆λ/λ = 10 % medium resolution
2) ∆λ/λ = 6 % high resolution
• Planned in future: chopper system with
∆λ/λ = 1 %
• Wavelength range: 3.5 Å – 30 Å
• Wavelength resolution: 1 % - 25 % (FWHM)
Polarization
• Two V-shaped polarizers
Source-to-sample distance
• 1 m, 2 m, 4 m, 8 m, 12 m, 16 m to 20 m in
steps via insertion of neutron guide sections
except 1 m
Dr. habil. Ralph Gilles
Phone: +49.(0)89.289.14665
Email: ralph.gilles@frm2.tum.de
Phone Instrument: .12818 / .14992
Laser System
A redundant laser alignment system to position in
the neutron guide, the collimation, the background
apertures (BGA) or the laser in the neutron beam
is installed. In addition the laser is used to support
the positioning of the sample (including the sample
environment) or the beam stop in a proper way.
Sample size
• 0 to 50 mm diameter
Q-range
• theoretical 0.0001 Å -1 < Q < 2 Å -1
Detectors
1) 128 3 He position-sensitive proportional counter
with 1000 mm × 1020 mm 2 total area and 8 mm
resolution and lateral detector movement up to
0.5 m, counting rate up 1 MHz
2) Detector with better resolution of 3 mm and
0.5 m × 0.5 m total area at long distances.
Dr. André Heinemann
Phone: +49.(0)89.289.14534
Email: andre.heinemann@hzg.de
www.frm2.tum.de/sans-1
SANS
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