Paper |
Title |
Page |
TOAD003 |
Development of the Beam Diagnostics System for the J-PARC Rapid-Cycling Synchrotron
|
299 |
|
- N. Hayashi, S.H. Hiroki, J. Kishiro, Y.T. Teruyama, R. Toyokawa
JAERI/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
- D.A. Arakawa, S. Lee, T. Miura, T. Toyama
KEK, Ibaraki
|
|
|
Development of the beam diagnostics system for the J-PARC (Japan Proton Accelerator Research Complex) Rapid-Cycling Synchrotron is described. The system consists of Beam Position Monitor (BPM), Beam Loss Monitor (BLM), Current monitors (DCCT, SCT, MCT, FCT, WCM), Tune meter system, 324MHz-BPM, Profile monitor, and Halo monitor. BPM electrode is electro-static type and its electronics is designed for both COD and turn-by-turn measurements. Five current monitors have different time constants in order to cover wide frequency range. The tune meter is consisted of RFKO and the beam pick-up electrode. For the continuous injected beam monitoring, 324MHz-BPM detects Linac frequency. Two types of profile monitor are multi-wire for low intensity tuning and the residual gas monitor for non-destructive measurement.
|
|
RPAT005 |
Beam Diagnostics for the J-PARC Main Ring Synchrotron
|
958 |
|
- T. Toyama, D.A. Arakawa, Y. Hashimoto, S. Lee, T. Miura, S. Muto
KEK, Ibaraki
- N. Hayashi, J. Kishiro, R. Toyokawa
JAERI/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
|
|
|
Beam diagnostics: beam intensity monitors (DCCT, SCT, FCT, WCM), beam position monitors (ESM), beam loss monitors (proportional chamber, air ion chamber), beam profile monitors (secondary electron emission, gas-sheet) have been designed, tested, and will be installed for the Main Ring synchrotron of J-PARC (Japan Proton Accelerator Research Complex). This paper describes the basic design principle and specification of each monitor, with a stress on how to cope with high power beam (average circulation current of ~12 A) and low beam loss operation (less than 1 W/m except a collimator region). Some results of preliminary performance test using present beams and a radiation source will be reported.
|
|