Development of a feedback control system for resonant power supplies in J-PARC 3-GeV synchrotron

Watanabe, Yasuhiro ; Tani, Norio ; Adachi, Toshikazu*; Igarashi, Susumu*; Someya, Hirohiko*

In the J-PARC 3-GeV Synchrotron, dipole magnets and 7 families of quadrupole magnets are excited with a DC-biased 25 Hz sinusoidal waveforms using a individual resonant circuits. This paper proposed a feedback system to improve the amplitude and phase stability, specially against variation of capacitance caused by temperature characteristics in resonant circuits. The control system has been successfully demonstrated and achieved amplitude and phase stability under 0.005% and 1 uS, respectivity.

Language	:	English
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Meeting title	:	2009 Particle Accelerator Conference (PAC '09)
Held date	:	2009/05
Location (city)	:	Vancouver
Location (country)	:	Canada
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Keywords	:	no keyword
Research Facility	:	J-PARC加速器
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Registration No. : BB20090422
JAEA Abstracts No. :
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