化学气相沉积金刚石对70兆电子伏特质子、快中子和200兆电子伏特π介子的辐射耐受性研究。

A Study of the Radiation Tolerance of CVD Diamond to 70 MeV Protons, Fast Neutrons and 200 MeV Pions.

作者信息

Bäni Lukas, Alexopoulos Andreas, Artuso Marina, Bachmair Felix, Bartosik Marcin Ryszard, Beck Helge Christoph, Bellini Vincenzo, Belyaev Vladimir, Bentele Benjamin, Bes Alexandre, Brom Jean-Marie, Chiodini Gabriele, Chren Dominik, Cindro Vladimir, Claus Gilles, Collot Johann, Cumalat John, Curtoni Sébastien, Dabrowski Anne Evelyn, D'Alessandro Raffaello, Dauvergne Denis, De Boer Wim, Dorfer Christian, Dünser Marc, Eigen Gerald, Eremin Vladimir, Forneris Jacopo, Gallin-Martel Laurent, Gallin-Martel Marie-Laure, Gan Kock Kiam, Gastal Martin, Ghimouz Abderrahman, Goffe Mathieu, Goldstein Joel, Golubev Alexander, Gorišek Andrej, Grigoriev Eugene, Grosse-Knetter Jörn, Grummer Aidan, Hiti Bojan, Hits Dmitry, Hoeferkamp Martin, Hosselet Jérôme, Hügging Fabian, Hutson Chris, Janssen Jens, Kagan Harris, Kanxheri Keida, Kass Richard, Kis Mladen, Kramberger Gregor, Kuleshov Sergey, Lacoste Ana, Lagomarsino Stefano, Giudice Alessandro Lo, Paz Ivan López, Lukosi Eric, Maazouzi Chaker, Mandić Igor, Marcatili Sara, Marino Alysia, Mathieu Cédric, Menichelli Mauro, Mikuž Marko, Morozzi Arianna, Moscatelli Francesco, Moss Joshua, Mountain Raymond, Oh Alexander, Olivero Paolo, Passeri Daniele, Pernegger Heinz, Perrino Roberto, Picollo Federico, Pomorski Michal, Potenza Renato, Quadt Arnulf, Rarbi Fatah, Re Alessandro, Reichmann Michael, Roe Shaun, Rossetto Olivier, Becerra Diego Alejandro Sanz, Schmidt Christian J, Schnetzer Stephen, Sciortino Silvio, Scorzoni Andrea, Seidel Sally, Servoli Leonello, Smith Dale Shane, Sopko Bruno, Sopko Vit, Spagnolo Stefania, Spanier Stefan, Stenson Kevin, Stone Robert, Stugu Bjarne, Sutera Concetta, Traeger Michael, Trischuk William, Truccato Marco, Tuvè Cristina, Velthuis Jaap, Wagner Stephen, Wallny Rainer, Wang Jianchun, Wermes Norbert, Wickramasinghe Jayashani, Yamouni Mahfoud, Zalieckas Justas, Zavrtanik Marko, Hara Kazuhiko, Ikegami Yoichi, Jinnouchi Osamu, Kohriki Takashi, Mitsui Shingo, Nagai Ryo, Terada Susumu, Unno Yoshinobu

机构信息

Department of Physics, ETH Zürich, 8093 Zürich, Switzerland.

CERN, 1211 Geneva, Switzerland.

出版信息

Sensors (Basel). 2020 Nov 20;20(22):6648. doi: 10.3390/s20226648.

DOI:10.3390/s20226648

PMID:33233598

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7699799/

Abstract

We measured the radiation tolerance of commercially available diamonds grown by the Chemical Vapor Deposition process by measuring the charge created by a 120 GeV hadron beam in a 50 μm pitch strip detector fabricated on each diamond sample before and after irradiation. We irradiated one group of samples with 70 MeV protons, a second group of samples with fast reactor neutrons (defined as energy greater than 0.1 MeV), and a third group of samples with 200 MeV pions, in steps, to (8.8±0.9) × 10 protons/cm, (1.43±0.14) × 10 neutrons/cm, and (6.5±1.4) × 10 pions/cm, respectively. By observing the charge induced due to the separation of electron-hole pairs created by the passage of the hadron beam through each sample, on an event-by-event basis, as a function of irradiation fluence, we conclude all datasets can be described by a first-order damage equation and independently calculate the damage constant for 70 MeV protons, fast reactor neutrons, and 200 MeV pions. We find the damage constant for diamond irradiated with 70 MeV protons to be 1.62±0.07(stat)±0.16(syst)× 10 cm/(p μm), the damage constant for diamond irradiated with fast reactor neutrons to be 2.65±0.13(stat)±0.18(syst)× 10 cm/(n μm), and the damage constant for diamond irradiated with 200 MeV pions to be 2.0±0.2(stat)±0.5(syst)× 10 cm/(π μm). The damage constants from this measurement were analyzed together with our previously published 24 GeV proton irradiation and 800 MeV proton irradiation damage constant data to derive the first comprehensive set of relative damage constants for Chemical Vapor Deposition diamond. We find 70 MeV protons are 2.60 ± 0.29 times more damaging than 24 GeV protons, fast reactor neutrons are 4.3 ± 0.4 times more damaging than 24 GeV protons, and 200 MeV pions are 3.2 ± 0.8 more damaging than 24 GeV protons. We also observe the measured data can be described by a universal damage curve for all proton, neutron, and pion irradiations we performed of Chemical Vapor Deposition diamond. Finally, we confirm the spatial uniformity of the collected charge increases with fluence for polycrystalline Chemical Vapor Deposition diamond, and this effect can also be described by a universal curve.

摘要

我们通过测量120 GeV强子束在每个金刚石样品上制造的50μm间距条带探测器中在辐照前后产生的电荷，来测量通过化学气相沉积工艺生长的商用金刚石的辐射耐受性。我们分阶段用70 MeV质子辐照一组样品，用快堆中子（定义为能量大于0.1 MeV）辐照第二组样品，用200 MeVπ介子辐照第三组样品，分别达到(8.8±0.9)×10质子/cm、(1.43±0.14)×10中子/cm和(6.5±1.4)×10π介子/cm。通过逐个事件地观察由于强子束穿过每个样品时产生的电子 - 空穴对分离而感应的电荷，作为辐照注量的函数，我们得出所有数据集都可以用一阶损伤方程来描述，并独立计算70 MeV质子、快堆中子和200 MeVπ介子的损伤常数。我们发现用70 MeV质子辐照的金刚石的损伤常数为1.62±0.07(统计)±0.16(系统)×10 cm/(pμm)，用快堆中子辐照的金刚石的损伤常数为2.65±0.13(统计)±0.18(系统)×10 cm/(nμm)，用200 MeVπ介子辐照的金刚石的损伤常数为2.0±0.2(统计)±0.5(系统)×10 cm/(πμm)。将此次测量得到的损伤常数与我们之前发表的24 GeV质子辐照和800 MeV质子辐照损伤常数数据一起进行分析，以得出化学气相沉积金刚石的第一套全面的相对损伤常数。我们发现70 MeV质子的损伤程度比24 GeV质子高2.60±0.29倍，快堆中子的损伤程度比24 GeV质子高4.3±0.4倍，200 MeVπ介子的损伤程度比24 GeV质子高3.2±0.8倍。我们还观察到，对于我们对化学气相沉积金刚石进行的所有质子、中子和π介子辐照，测量数据都可以用一条通用损伤曲线来描述。最后，我们证实了多晶化学气相沉积金刚石收集电荷的空间均匀性随注量增加而增加，并且这种效应也可以用一条通用曲线来描述。