Design of the photomultiplier tube bases for high dynamic range readout in WCDA

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HUANG Wei-Ping, JIANG Kun, LI Cheng, TANG Ze-Bo, SHAO Ming, CHEN Hong-Fang and SUN Yong-Jie. Design of the photomultiplier tube bases for high dynamic range readout in WCDA[J]. Chinese Physics C, 2013, 37(3): 036001. doi: 10.1088/1674-1137/37/3/036001
HUANG Wei-Ping, JIANG Kun, LI Cheng, TANG Ze-Bo, SHAO Ming, CHEN Hong-Fang and SUN Yong-Jie. Design of the photomultiplier tube bases for high dynamic range readout in WCDA[J]. Chinese Physics C, 2013, 37(3): 036001.  doi: 10.1088/1674-1137/37/3/036001 shu
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Received: 2012-04-23
Revised: 2012-07-03
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Design of the photomultiplier tube bases for high dynamic range readout in WCDA

    Corresponding author: LI Cheng,

Abstract: The photomultiplier tube (PMT) used in the water Cherenkov detector array (WCDA) of the Large High Altitude Air Shower Observatory (LHAASO) requires a good single photoelectron (SPE) spectrum and a charge dynamic range from 1 to 4000 photoelectrons. In this paper, the bases design and improvement of the photomultiplier tube R5912 are presented. The results show that at the gain of 2.6×106, the anode output has a good single photoelectron spectrum, and its charge non-linearity is within 5% when the number of photoelectrons (nPE) is 3500. The charge non-linearity of the 8th dynode output is within 2% when the number of nPE is 4000, which satisfies the dynamic range requirement.

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