International Conference on Technology and Instrumentation in Particle Physics 2017(TIPP2017)

The Study of Pulse Height Spectra of Single Microchannel Plate with Large Length-to-diameter Ratio

Not scheduled

15m

Beijing International Convention Center

Poster Photon detectors

Speaker

Ms Yuzhen Yang (Institute of High Energy Physics Chinese Academic of Science)

Description

The pulse height spectra of a one-stack microchannel plate (MCP) are studied. The MCP studied is with a length-to-diameter ratio (L/D) of 80:1, which is larger than the usual MCPs for image intensifier application while are stacked as component. Using single MCP with large L/D, can achieve high gain ~ 106, and get better resolution than MCP assembly. In this manuscript, we measure the single and multiple electron spectra of the single MCP using a test system including a low noise charge sensitive preamplifier, shaping amplifier and multichannel analyzer; and fit the multiple electrons spectra with a function including the effects of multiple Gauss distribution, noise, and Poison distribution. In addition, by the different input electron numbers, the mechanism of the two distribution is studied.