【摘要】 介绍了合肥光源机器诊断光束线上具有弹簧系统的丝型光位置检测器,经过标定该检测器的线性范围大于4 mm,灵敏度约为0.197 9 mm-1。通过不同束流流强下同步光垂直尺寸的测量,发现束流流强对同步光垂直尺寸的影响不大,不需要对灵敏度进行修正。进行了无氧铜板施加正偏压的测量,在施加正偏压时能够提高线性范围和略改善信噪比。更多还原

【Abstract】 A new wire photon beam position monitor with a spring system was designed and installed in the machine diagnostic beamline in Hefei Light Source(HLS).The linearity range is 4 mm,and the sensitivity is about 0.197 9 mm-1.The beam current has a little effect on the synchrotron radiation vertical size.The signal-to-noise ratio and the linearity can be improved,but the sensitivity decreases with a positive bias voltage applied to the copper block.更多还原