Design and cooling of BESIII beryllium beam pipe
Design and cooling of BESIII beryllium beam pipe
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DOI：
10.1016/j.nima.2007.11.004
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发表时间：
2008-01
影响因子：
1.4
通讯作者：
Xunfeng Li;Q. Ji;L. Wang;Lifang Zheng
中科院分区：
文献类型：
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作者：
Xunfeng Li;Q. Ji;L. Wang;Lifang Zheng
根据升级版BESIII（北京光谱仪）实验的要求，对铍束管进行了改造。SMO-1（火花加工油号）1)作为中央铍束管的冷却剂。计算了铍束管的冷却间隙宽度，研究了集中热负荷对铍束管壁温的影响，确定了mo -1在最大热负荷下在间隙内的最佳速度。为控制梁管外壁温度，研制了梁管冷却系统。本文从布置和自动化两个方面对冷却系统进行了介绍。在节流梁管模型上对冷却系统的性能进行了测试。试验结果表明，铍束管设计合理，冷却系统达到BESIII实验目的。冷却系统已通过验收并安装到位。它将在2008年BESIII实验中付诸实践。
The beryllium beam pipe was restructured according to the requirements of the upgraded BESIII (Beijing Spectrometer) experiment. SMO-1 (sparking machining oil no. 1) was selected as the coolant for the central beryllium beam pipe. The cooling gap width of the beryllium beam pipe was calculated, the influence of concentrated heat load on the wall temperature of the beryllium beam pipe was studied, and the optimal velocity of the SMO-1 in the gap was determined at the maximum heat load. A cooling system for the beam pipe was developed to control the outer wall temperature of the beam pipe. The cooling system is reported in this paper with regard to the following two aspects: the layouts and the automation. The performance of the cooling system was tested on the beam pipe model with trim size. The test results show that the design of the beryllium beam pipe is reasonable and that the cooling system achieves the BESIII experimental aim. The cooling system has already passed the acceptance test and has been installed in position. It will be put into practice for the BESIII experiment in 2008.