Magnetic shield of PMT used in DAMPE electromagnetic calorimeter
CHINESE PHYSICS C(2014)
Abstract
The magnetic characteristics of R5610A-01 photomultiplier tubes are studied in this paper. The experimental data shows that the gain of R5610A-01 loses about 53% when the magnetic field is 3 Gs along its +X axis. A cylinder of one-layer permalloy strip is able to reduce the effect of a 3 Gs magnetic field on the PMT gain to less than 1%.
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Key words
photomultiplier tube,magnetic shield,characteristics
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