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High‐speed MCP anodes for high time resolution low‐energy charged particle spectrometers
Author(s) -
Saito Yoshifumi,
Yokota Shoichiro,
Asamura Kazushi,
Krieger Amanda
Publication year - 2017
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
eISSN - 2169-9402
pISSN - 2169-9380
DOI - 10.1002/2016ja023157
Subject(s) - anode , resistive touchscreen , materials science , optoelectronics , application specific integrated circuit , substrate (aquarium) , electrical engineering , microchannel plate detector , optics , physics , electronic engineering , detector , electrode , engineering , oceanography , quantum mechanics , geology
The time resolution of low‐energy charged particle measurements is becoming higher and higher. In order to realize high time resolution measurements, a 1‐D circular delay line anode has been developed as a high‐speed microchannel plate (MCP) anode. The maximum count rate of the 1‐D circular delay line anode is around 1 × 10 7 /s/360°, which is much higher than the widely used resistive anode, whose maximum count rate is around 1 × 10 6 /s/360°. In order to achieve much higher speeds, an MCP anode with application‐specific integrated circuit (ASIC) has been developed. We have decided to adopt an anode configuration in which a discrete anode is formed on a ceramic substrate, and a bare ASIC chip is installed on the back of the ceramic. It has been found that the anode can detect at a high count rate of 2 × 10 8 /s/360°. Developments in both delay line and discrete anodes, as well as readout electronics, will be reviewed.