The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Xu, Y. AU - Hu, C.D. AU - Liang, L.Z. AU - Xie, Y.H. AU - Xie, Y.L. AU - Yu, Yu, L. ED - Schaa, Volker RW ED - Ji, Daheng ED - Li, Lu ED - Zhao, Ning TI - Numerical Assessment of Beam Diagnostic Calorimeter for East Neutral Beam Injector J2 - Proc. of SAP2017, Jishou, China, 28-30 August 2017 C1 - Jishou, China T2 - Symposium on Accelerator Physics T3 - 13 LA - english AB - Neutral beam injection is one of the most effective means of plasma heating and has been also verified to be applicable for current driving. In order to support the physical research of EAST, two neutral beam injectors (NBI, 80 keV, 4 MW) have been developed and constructed in Institute of Plasma Physics, CAS. In order to evaluate beam intensity distribution and divergence, a moveable sophisticated copper short-pulse beam diagnostic calorimeter is designed and installed on the NBI test stand. In this article, the structure of calorimeter, the operating parameters are introduced. The new diagnostic calorimeter plate bombarded by the beam adopts blocking design and there is no heat transfer between adjacent block. Thermocouples are installed into the block, so the temperature can be measured precisely. Based on the data obtained by thermocouples, the beam pattern can be plotted. In order to ensure the diagnostic calorimeter work safely, the operating parameters are explored using FEM. As the new beam diagnostic calorimeter solve the problem of mutual interference due to the heat transfer of each block, it can give more precise beam property comparing with the present calorimeter. PB - JACoW CP - Geneva, Switzerland SP - 162 EP - 164 KW - ion KW - diagnostics KW - neutral-beams KW - plasma KW - extraction DA - 2018/02 PY - 2018 SN - 978-3-95450-199-1 DO - 10.18429/JACoW-SAP2017-TUPH26 UR - http://jacow.org/sap2017/papers/tuph26.pdf ER -