A four-dimensional beam-position monitor

被引：7
|
作者：
Ieiri, T [1 ]
Kawamoto, T [1 ]
机构：
[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 440卷 / 02期
关键词：
accelerator; beam-position monitor; I/Q demodulator; synchronous phase;
D O I：
10.1016/S0168-9002(99)00967-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new type of beam-position monitor (BPM) has been developed in the KEKB accelerator. The BPM employs an I/Q (In-phase and Quadrature phase) demodulator operating at an acceleration frequency of 509 MHz without down converting. The peak value of a demodulated beam pulse is sampled every revolution period. Not only horizontal and vertical positions, but also the longitudinal position can be detected turn by turn. The performance of this four-dimensional BPM is described in detail. A monitor is indispensable for tuning a beam injected into the KEKB. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：330 / 337
页数：8
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