Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session 3WCB: Fast Time Silicon Detectors towards 4D- Trackers II
11:00 AM–12:00 PM,
Monday, November 27, 2023
Hilton Waikoloa Village
Room: Kings 3
Chair: Koji Nakamura, KEK, High Energy Accelerator Research Organization
Abstract: 3WCB.00002 : Radiation hardness study for future hadron collider*
11:30 AM–12:00 PM
Abstract
Presenter:
Tomoka Imamura
(University of Tsukuba)
Authors:
Tomoka Imamura
(University of Tsukuba)
Koji Nakamura
(KEK, High Energy Accelerator Research Organization)
Sayuka Kita
(University of Tsukuba)
Kazuhiko Hara
(University of Tsukuba)
Collaborations:
High Energy Accelerator Research Organization (KEK), University of Tsukuba, Fermi National Accelerator Laboratory, Brookhaven National Laboratory, University of California, Santa Cruz, Hamamatsu Photonics K.K.
One of the major problems of radiation hardness of LGAD detectors is acceptor removal:shallow dopants in the gain layer of LGAD detectors are reduced by radiation damage. Two novel ideas to protect dopants are tested in order to suppress the effects of acceptor removal. In this talk, concepts of two ideas and the measurement results of proton irradiated samples are reported.
*We would like to acknowledge Hamamatsu Photonics K.K. for the fabrication of various types of AC-LGAD sensors and the discussions with the personnel have been very inspiring and fruitful. This research was partially supported by Grant-in-Aid for scientific research on advanced basic research (Grant No. 19H05193, 19H04393, 21H0073 and 21H01099) from the Ministry of Education, Culture, Sports, Science and Technology, of Japan as well as the Proposals for the U.S.-Japan Science and Technology Cooperation Program in High Energy Physics from JFY2019 to JFY2023 granted by High Energy Accelerator Research Organization (KEK) and Fermi National Accelerator Laboratory (FNAL). In conducting the present research program, the following facilities have been very important: Research Center for ELectron PHoton Science (ELPH) and Cyclotron Radio Isotope Center (CYRIC) at Tohoku University, National Institutes for Quantum Science and Technology (QST) at Takasaki, and Fermilab Test Beam Facility (FTBF) at Fermi National Accelerator Laboratory (FNAL).
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