Author: Wu, J.X.
Paper Title Page
WEOB04
Beam Loss Monitoring of ADS and HIRFL  
 
  • L. Jing, Z. Du, K. Gu, X.J. Hu, W. Wei, J.X. Wu, H.M. Xie, J. Yan, Y. Zhang, G. Zhu
    IMP/CAS, Lanzhou, People's Republic of China
 
  In a real accelerator, the transmission from the source to the target is never 100 %. The fraction of beam particles lost has to be controlled carefully to achieve optimal transmission. The lost beam particles cause some activation of the accelerator components by nuclear reactions. Moreover, the surrounding material can be destroyed by the radiation, as well as by the heating due to the particles' energy loss. The Beam loss monitor (BLM) is designed to detect secondary reaction products, which be mounted outside of the vacuum pipe at crucial locations. A large variety of beam loss monitors (such as diamond, silicon, plastic scintillator and ionization chamber) were tested at the ADS and HIRFL of IMP (Lanzhou, China). The beam loss processes being made by adjusting the scraper and the kicker are described briefly.  
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