Abstracts Brochure - CERN

TUPCH118
TUPCH120
TUPCH121
27-Jun-06 16:00 - 18:00 TUPCH — Poster Session
Proton RF System. It is also an overview of the hardware including the beam loading compensation (fast feedback)
the tuning system and the other components.
Manufacturing and Testing of 2.45GHz and 4.90GHz Biperiodic Accelerating Structures for
MAMI C
A. Jankowiak, O. Chubarov, H. Euteneuer (IKP) K. Dunkel, C. Piel,
H. Vogel, P. vom Stein (ACCEL)
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At the Institut fur Kernphysik (IKPH) of
Mainz University the fourth stage of the
Mainz Microtron (MAMI), a 855MeV to
1500MeV Harmonic Double Sided Micro-
tron*, is now on the verge of first operation. For this project ACCEL Instruments GmbH manufactured biperiodic, on
axis coupled, standing wave accelerating structures at the frequencies of 2.45GHz and 4.90GHz. Four resp. eleven
multicell sections were manufactured, low power characterized and after delivery tested at the high power test stand
of IKPH. This paper describes the production and characterization of these structures, presents results of the high
power tests, and compares these data with results gained at IKPH for an in house built 4.90GHz prototype and the
2.45GHz structures built in the 1980s.
*A. Jankowiak et al. "Design and Status of the 1.5 GeV-Harmonic Double Sided Microtron for MAMI", Proceedings
EPAC2002, Paris, p. 1085.
The Diamond Light Source Booster RF System
C. Christou, V.C. Kempson (Diamond) K. Dunkel (ACCEL) A. Fabris
(ELETTRA)
The Diamond Light Source (DLS) accelerator
complex can be divided into three major
components; a 3 GeV 561 m circumference
storage ring, a 158.4 m circumference full-
energy booster synchrotron and a 100 MeV pre-injector linac. This paper describes the design and presents commissioning
results of the RF system for the booster synchrotron. Booster RF commissioning took place in late 2005
and early 2006 and involved the setting-into-operation of a 60 kW IOT amplifier, supplied by Thales Broadcast and
Multimedia, a 5-cell copper cavity, manufactured by Accel Instruments, and a low-level RF system designed and built
by Sincrotrone Trieste SCpA.
The IASA Cooling System for the 10 MeV CW Linac
A. Karabarbounis, D. Baltadoros, T. Garetsos, C.N. Papanicolas, E.
Stiliaris (IASA) A. Zolfaghari (MIT)
A de-ionized water cooling system for the
IASA room temperature 10 MeV CW Linac
has been constructed and successfully installed.
Commissioning is undergoing
achieving resistivity larger to 5MΩcm with a temperature accuracy of for all three linacs. Three ways mixing
valves with a stepping capability of one thousand different mixing steps fulfill independently for each section the
required temperature stability and the appropriate resonance frequency to our cavities. The RF requirements for the
three linacs is 190kW provided by a single high power klystron tube capable to deliver up to 500 kW CW at 2380 MHz.
The klystron is been cooled with a parallel similar cooling system and a third system cools our Aluminum waveguide
complex. In this paper we will present the design, specifications and results of our preliminary tests. A sophisticated
control and interlock system based on EPICS guarantees the proper functioning of the system.