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arXiv · 2108.03406

High resolution MCP-PMT Readout Using Transmission Lines

M. Follin·R. Chyzh·C. -H. Sung·D. Breton·J. Maalmi·T. Chaminade·E. Delagnes·K. Schäfers·C. Weinheimer·D. Yvon·V. Sharyy
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Abstract

We study the potential of the MCP-PMT read-out to detect single photo-electron using transmission lines. Such a solution limits the number of read-out channels, has a uniform time resolution across the PMT surface and provides quasi-continuous measurement of the spatial coordinates. The proposed solution is designed to be used in the BOLD-PET project aiming to develop an innovative detection module for the positron emission tomography using the liquid detection media, the tri-methyl bismuth. In this study we use the commercial MCP-PMT Planacon from Photonis, with 32x32 anode structure. The PCB gathers signals from anode pads in 32 transmission lines which are read-out from both ends. Amplifier boards and SAMPIC modules, developed in our labs, allow us to realize the cost-effective, multi-channel digitization of signals with excellent precision. For a single photo-electron, we measured a time resolution of 70~ps (FWHM) simultaneously with a spatial accuracy of 1.6~mm and 0.9~mm (FWHM) along and across transmission lines correspondingly.

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M. Follin, R. Chyzh, C. -H. Sung, D. Breton, J. Maalmi, T. Chaminade, E. Delagnes, K. Schäfers, C. Weinheimer, D. Yvon, V. Sharyy. 2021-08-07. High resolution MCP-PMT Readout Using Transmission Lines. https://doi.org/10.1016/j.nima.2021.166092

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