CSNS束流损失监控(BLM)系统电离室的改进

Improved Design and Construction of the Lonization Chamber for CSNS Beam Loss Monitor (BLM) System

报道了中国散裂中子源工程（CSNS）和强流质子加速器（PA）束流损失监控（BLM）系统的电离室的改进。对改进后的电离室测量得到，电离室有良好的坪特性（坪长≥2000V），测量的辐照剂量范围到3．6×10^5rad／h，高压加到3500V仍能稳定工作。测量的结果表明电离室探头性能已能满足CSNS和PA对束流损失监控的性能需求。

Improved design and construction of the ionization chamber （ IC ） for CSNS and PA beam loss monitor （BLM） system is reported. The good plateau（ ≥ 000 V） and the measurement range up to 3.6 x 10^5rad/h are obtained in the improved ionization chamber. All of these show us the performances of the improved ionization chamber can be satisfied for CSNS BLM application.