Radiation hardness study for the COMET Phase-I electronics-猫眼课题宝

DOI：

10.1016/j.nima.2019.163247

发表时间：

2019-12

期刊：

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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其他

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作者：

Y. Nakazawa;Y. Fujii;E. Gillies;E. Hamada;Y. Igarashi;M. Lee;M. Moritsu;Y. Matsuda;Y. Miyazaki;Y. Nakai;H. Natori;K. Oishi;A. Sato;Y. Uchida;K. Ueno;H. Yamaguchi;B. Yeo;H. Yoshida;Jie Zhang

在J-PARC的彗星第一阶段实验中，前端读出和触发电子的辐射损伤是一个重要问题，该实验计划寻找介子到电子的中微子跃迁。为了产生强烈的介子束，高功率质子束撞击石墨靶，产生高辐射环境。我们要求总剂量为1的辐射耐受性。0 kGy和1 MeV当量中子通量为1。0× 10 12 n eq cm−2，包括在物理测量期间的安全系数为5。在这样的环境中，使用具有高辐射容忍度的商用电子元件是可取的，如果这些元件可以得到保护。在伽玛射线和中子辐照试验中对商用电子元件的辐射硬度进行了评定。作为这些测试的结果，电压调节器，adc， dac和其他几个组件被发现在我们要求的水平上对伽马射线和中子辐射有足够的耐受性。

Radiation damage on front-end readout and trigger electronics is an important issue in the COMET Phase-I experiment at J-PARC, which plans to search for the neutrinoless transition of a muon to an electron. To produce an intense muon beam, a high-power proton beam impinges on a graphite target, resulting in a high-radiation environment. We require radiation tolerance to a total dose of 1. 0 kGy and 1 MeV equivalent neutron fluence of 1. 0× 10 12 n eq cm− 2 including a safety factor of 5 over the duration of the physics measurement. The use of commercially-available electronics components which have high radiation tolerance, if such components can be secured, is desirable in such an environment. The radiation hardness of commercial electronic components has been evaluated in gamma-ray and neutron irradiation tests. As results of these tests, voltage regulators, ADCs, DACs, and several other components were found to have enough tolerance to both gamma-ray and neutron irradiation at the level we require.

Radiation hardness study for the COMET Phase-I electronics

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