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Title |
Other Keywords |
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| S11LLC07 |
The KEK PS Fast Beam Loss Monitor System |
detector, hardware, controls, booster |
395 |
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- J.A. Holt, D.A. Arakawa, S. Hiramatsu, J. Kishiro, H. Someya
KEK, Ibaraki, Japan
- J.A. Holt
Fermilab, Batavia, Illinois, USA
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The higher beam intensities now being accelerated in the KEK proton synchrotron (PS) complex have increased the importance of observing the beam loss during acceleration. The beam loss should be continuously monitored to minimize radiation damage to the accelerator components. A fast loss monitor also is a good tool for observing where and when the beam is lost, by which we are able to get information on the beam dynamics. The development of a fast beam loss monitor system at KEK is described in this paper.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC07
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| About • |
Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 |
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| S11LLC08 |
Non-Destructive Fast Data Taking System of Beam Profile and Momentum Spread in KEK-PS |
synchrotron, electron, vacuum, injection |
399 |
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- T. Kawakubo, T. Adachi, Y. Ajima, E. Kadokura
KEK, Ibaraki, Japan
- T. Ishida
Mitsubishi Electric Corporation, Tokyo, Japan
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A mountain view of beam profiles in a synchrotron ring can be taken without any beam destruction by collecting charged particles produced by the circulating beam hitting residual gas in the ring to a sensor. When a rectangular Micro Channel Plate with multi-anodes or lined-up electron multipliers is used as the sensor, the profiles can be measured within one acceleration period, even if the beam intensity is very low and the ring is kept in a high vacuum. We describe this non-destructive profile monitor (NDPM) as well as the momentum spread measurement system by a combination of two sets of NDPM.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC08
|
|
| About • |
Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 |
|
| Cite • |
reference for this paper using
※ BibTeX,
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※ Text/Word,
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| S12FC07 |
RF Control System of the HIMAC Synchrotron |
controls, synchrotron, feedback, electron |
434 |
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- M. Kanazawa, Y. Hirao, A.I. Itano, K. Noda, K. Sato, M. Sudou, E. Takada
NIRS, Chiba-shi, Japan
- Y. Morii, M. Shigeta, E. Toyoda, N. Tsuzuki, T. Yagi, T. Yamagishi, C. Yamazaki
Toshiba Corporation, Tokyo, Japan
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HIMAC is a heavy Ion accelerator facility dedicated to the medical use, especially for the clinical treatment of tumors. The ion species required for the clinical treatment range from 4He to 40Ar. An RF control system of the HIMAC synchrotron has been constructed. In this control system we have adopted a digital feed back system with a digital synthesizer (DS). Combining a high power system, performance of the control system have been tested in a factory (Toshiba) with a simulator circuit of the synchrotron oscillation. Following this test, we had beam acceleration test with this control system at TARN-II in INS (Institute for Nuclear Study, University of Tokyo). This paper describes the RF control system and its tested results.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-ICALEPCS1991-S12FC07
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| About • |
Received ※ 02 December 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992 |
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| Cite • |
reference for this paper using
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※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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