| Paper |
Title |
Page |
| TUPC022 |
Non-destructive Beam Position and Profile Measurements Using Light Emitted by Residual Gas in a Cyclotron Beam Line
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1095 |
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- J. Dietrich
FZJ, Jülich
- C. Boehme
UniDo/IBS, Dortmund
- A. H. Botha, J. L. Conradie, M. A. Crombie, J. H. Du Toit, D. T. Fourie, H. W. Mostert, P. F. Rohwer, P. A. van Schalkwyk
iThemba LABS, Somerset West
- T. Weis
DELTA, Dortmund
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Non-destructive beam position and profile measurements were made in the transfer beam line between an 8 MeV solid-pole injector cyclotron and a 200 MeV separated-sector cyclotron that is used for nuclear physics research, radioisotope production and proton and neutron therapy. Light emitted from the beam induced ionization of residual gas particles was measured using a multi-cathode photomultiplier tube (PMT). The PMT was mounted outside the vacuum system on a diagnostic chamber and light passing through a glas window was focused on the photocathode array by means of a lens. The anode currents of the PMT were measured with computer-controlled electronic equipment recently developed for measuring the currents of multi-wire beam profile monitors. Software was developed to control the measurement processes, remove offset values and further process the data digitally. The measured beam positions and profiles were compared with those determined with a multi-wire beam profile monitor for a 3.14 MeV proton beam. It was necessary to shield the PMT from gamma rays generated on nearby slits. The design of the measuring equipment is discussed and the results of the measurements are presented.
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| THPP047 |
Prototype of the High Voltage Section for the 2 MeV Electron Cooler at COSY
|
3467 |
| |
- J. Dietrich
FZJ, Jülich
- M. I. Bryzgunov, A. D. Goncharov, V. V. Parkhomchuk, V. B. Reva, D. N. Skorobogatov
BINP SB RAS, Novosibirsk
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The design, construction and installation of a 2 MeV electron cooling system for COSY-Juelich is proposed to further boost the luminosity even with strong heating effects of high-density internal targets. In addition the 2 MeV electron cooler for COSY is intended to test some new features of the high energy electron cooler for HESR at FAIR/GSI. The design of the 2 MeV electron cooler will be accomplished in cooperation with the Budker Institute of Nuclear Physics in Novosibirsk, Russia. The design and first experiments of a new developed prototype of the high voltage section, consisting of a gas turbine, magnetic coils and high voltage generator with electronics is reported.
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