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@article{FUJII2019669,
title = {Development of the proton beam monitor based on the thin diamond crystal for the COMET Experiment},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {936},
pages = {669-670},
year = {2019},
note = {Frontier Detectors for Frontier Physics: 14th Pisa Meeting on Advanced Detectors},
issn = {0168-9002},
doi = {https://doi.org/10.1016/j.nima.2018.10.136},
url = {https://www.sciencedirect.com/science/article/pii/S0168900218314505},
author = {Y. Fujii and H. Nishiguchi and S. Mihara and Y. Hashimoto},
keywords = {State solid detectors, CLFV, COMET, Diamond detector},
abstract = {In the COMET experiment, it is essential to establish the online monitor that enables to detect few residual protons between consecutive main proton bunches to search for the muon-to-electron(μ-e) conversion with a sensitivity below 10−16. A thin diamond based detector is proposed because of its ideal characteristics. To realise the diamond based residual proton monitor, a noise suppression is essential since the number of electron–hole pairs generated by a single proton is relatively small in a thin diamond (∼5000 e-h/100μm). The prototype detector based on a 0.5 mm thick diamond was developed to evaluate the proton counting capability. The beam test using a 30 GeV proton beam was performed with this prototype and the result is reported in this paper.}
}