CORKSCREW MODES IN LINEAR ACCELERATORS

被引：30

作者：

CHEN, YJ

机构：

[1] Lawrence Livermore National Laboratory, University of California, Livermore

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 292卷 / 02期

关键词：

D O I：

10.1016/0168-9002(90)90403-S

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The corkscrew mode in linear accelerators, in which a solenoidal beam-transport system is used, is investigated both analytically and numerically. By assuming that both the acceleration gaps and the drift regions between the adjacent magnets are infinitesimal, it is possible to treat the corkscrew mode analytically and to obtain an expression for the corkscrew mode amplitude and the effective emittance growth as a function of the energy variation within the beam pulse and of the tilts of the injector and the solenoid magnets. Reduction of the corkscrew mode amplitude is possible by an energy compensation scheme. This energy compensation scheme is studied numerically for the Experimental Test Accelerator II (ETA-II) configuration. We find that applying the energy compensation scheme at the beginning of the accelerator can reduce the corkscrew mode amplitude by a factor of two. © 1990.

引用

页码：455 / 464

页数：10

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