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Beam position and total current monitor for heavy ion fusion beams

 

作者: David Berners,   Louis L. Reginato,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1992)
卷期: Volume 281, issue 1  

页码: 168-174

 

ISSN:0094-243X

 

年代: 1992

 

DOI:10.1063/1.44334

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Heavy Ion Fusion requires moderate currents, 1‐10A, for a duration of about 1 &mgr;s. For accurate beam transport, the center of charge must be located to within ±100 &mgr;m. Beam position and intensity may be excited at frequencies approaching 10 MHz, and the monitoring system must have adequate bandwidth to respond at these frequencies.We have modified the Rogowski technique by using distributed reactance multiturn magnetic loops so that it is suitable for measuring current position as well as amplitude. Four identical stripline coils are wound one per quadrant around a non magnetic core. The sensitivity is similar to that of a lumped coil system, with the added advantage of increased bandwidth. The voltages induced on the four separate coils are compared and suitable signal conditioning is performed to recover beam position and intensity information.

 

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