Nuclear Techniques ›› 2014, Vol. 37 ›› Issue (06): 60101-060101.doi: 10.11889/j.0253-3219.2014.hjs.37.060101

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS •     Next Articles

Shielding design of free electron laser’s main wall based on the line-source sampling physical model

XU Yuhai XIA Xiaobin WANG Guanghong XU Jiaqiang   

  1. (Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Zhangjiang Campus, Shanghai 201204, China)
  • Received:2013-10-23 Revised:2014-03-27 Online:2014-06-10 Published:2014-06-04

Abstract:

Background: Dalian Coherent Light Source (DCLS) which is under construction is the first fourth-generation light source in China, and the only free electron laser with adjustable ultraviolet waves in the world. Purpose and Methods: By adopting the FLUKA code, a cylinder-tunnel geometric model and a line-source sampling physical model are constructed to calculate the thickness of shielding walls in the section of injector. The difference is discussed by comprehensive comparison of calculation results based on FLUKA and SHIELD11. Results: The results based on the FLUKA coincide with that based on SHILED11. The dose out of shielding walls is mainly comprised by the dose of neutron, and the dose of Giant-Resonance accounts for more than 95% of neutron dose. Conclusion: Line-source sampling physical model constructed based on Monte Carlo method can be used in shielding design of electron accelerator’s main walls.

Key words: FLUKA, Shiled11, Line-source sampling physical model, Shielding design, Dalian Coherent Light Source (DCLS)