摘要
利用同步光的可见光波段空间干涉方法,对北京正负电子对撞机储存环的束流横向截面垂直尺寸进行了测量。在同步模式下,测得束流横向截面垂直尺寸为155μm,测量结果与理论值符合得很好。此方法避免了同步光衍射带来的测量误差,并使结果更精确,且对其它非相干小尺寸光源也同样适用。
The vertical beam size of BEPCⅡstorage ring was measured by using visible synchrotron light spatial interference method,and the measured size is 155 μm.The measurement results fit well with the calculation predication.This method can avoid the measurement error caused by synchrotron light diffraction and makes the measurement results more accurate.In addition,the method is applicable to other small size incoherent light source.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2011年第9期2512-2514,共3页
High Power Laser and Particle Beams
关键词
同步光
束流测量
干涉
相干度
synchrotron light
beam size measurement
interference
coherence degree
