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Development of the detectors for the DeeMe experiment

Natsuki Teshima on behalf of the DeeMe Collaboration

SciPost Phys. Proc. 1, 051 (2019) · published 22 February 2019

Proceedings event

The 15th International Workshop on Tau Lepton Physics


In the DeeMe experiment, approximately $70\ \mathrm{GHz/mm^{2}}$ prompt-charged particles will hit the multi-wire proportional chambers (MWPCs) before signal electrons come. To avoid the space charge effect, we developed fast HV-switching MWPCs in order to control the gas gain dynamically. All four of the MWPCs were manufactured. Last year, the circuit of readout amplifiers is slightly modified to further improve the efficiency of the detector, and we also started to investigate other possible choices of the gas mixture. In this article, the development of the detectors and results of performance tests will be presented.

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