Note: A large open ratio, time, and position sensitive detector for time of flight measurements in UHV.
REVIEW OF SCIENTIFIC INSTRUMENTS(2015)
摘要
We report on the construction of an UHV compatible 40 mm active diameter detector based on micro channel plates and assembled directly on the feed-throughs of a DN63CF flange. It is based on the charge division technique and uses a standard 2 inch Si wafer as a collector. The front end electronic is placed directly on the air side of the flange allowing excellent immunity to noise and a very good timing signal with reduced ringing. The important aberrations are corrected empirically providing an absolute positioning accuracy of 500 μm while a 150 μm resolution is measured in the center.
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关键词
flight measurements,sensitive detector
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