A controller for 97 MHz super-conducting QWR for NSC LINAC booster

被引：6

作者：

Joshi, G ^{[1
]}

Sujo, CI

Sahu, B

Pandey, A

Kumar, A

Karande, J

机构：

[1] Bhabha Atom Res Ctr, Div Elect, Bombay 400085, Maharashtra, India

[2] Ctr Nucl Sci, New Delhi 110016, India

[3] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2002年 / 59卷 / 06期

关键词：

resonator; variable reactance method; dynamic phase control; phase; amplitude stabilization;

D O I：

10.1007/s12043-002-0153-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A resonator controller has been implemented to stabilize the amplitude and phase of rf fields in the super-conducting resonators of NSC LINAC. Due to reduced losses these resonators have intrinsic band width of the order of 0.1 Hz at 97 MHz whereas the vibration-induced center frequency changes are of the order of a few tens of hertz. In the control strategy followed, the resonator is made the frequency selective part of an oscillator. The phase lock is achieved by dynamically adding a phase shift in the oscillator. A slow tuner minimizes the slow drifts in the resonator center frequency. In this paper we present the control strategy, implementation details and performance obtained with this controller.

引用

页码：1035 / 1040

页数：6