Irradiation study using QA test pieces of ATLAS18 ITk strip sensors with 80 MeV protons
The ATLAS experiment is planning a complete replacement of its inner detector(ID) with a new all-silicon inner tracker (ITk) for the ATLAS Phase-2 upgrade. The ATLAS18 silicon strip sensors are designed to operate up to the integrated luminosity of 4000 fb −1 , which corresponds to the maximum fluence of 1 . 6 × 1 0 15 n eq / cm 2 (including safety factor). To enhance the quality assurance (QA) program to monitor the key properties of the sensors, the strip sensor community is considering to include China Spallation Neutron Source (CSNS) as a proton irradiation site and Institute of High Energy Physics (IHEP) as a QA test site. A total of 18 ATLAS18 ITk QA test pieces were irradiated with 6 . 0 × 1 0 14 , 1 . 6 × 1 0 15 , and 2 . 6 × 1 0 15 n eq / cm 2 protons at CSNS, and measured at IHEP, including IV (leakage current–voltage), CV (capacitance-voltage) and CCE (charge collection efficiency) measurements. The upgraded irradiation setup at CSNS and measurement setup at IHEP are shown in this paper. Irradiated samples were exchanged between IHEP, Ljubljana and Birmingham to cross-check CCE measurements.
Authors
- Hongna Liu (ORCID: https://orcid.org/0000-0002-5881-8353)
- Hao Deng (ORCID: https://orcid.org/0000-0002-7714-629X)
- V. Fadeyev
- B. Crick
- A. S. Chisholm
- Zhixin Tan (ORCID: https://orcid.org/0000-0002-9764-0682)
- Hantao Jing
- Y. Unno (ORCID: https://orcid.org/0000-0002-4170-8537)
- Y. Liu (ORCID: https://orcid.org/0000-0003-3615-2332)
- M. Ullán (ORCID: https://orcid.org/0000-0003-0728-1805)
- M. Cai (ORCID: https://orcid.org/0009-0001-3424-1553)
- Bing Jiang (ORCID: https://orcid.org/0009-0005-3941-1207)
- V. Cindro (ORCID: https://orcid.org/0000-0002-2037-7185)
- X. Shi (ORCID: https://orcid.org/0000-0001-9910-9345)
- Wei Lü (ORCID: https://orcid.org/0000-0001-9859-8394)
- Peng Liu (ORCID: https://orcid.org/0000-0001-7838-4436)
- Z. Xu (ORCID: https://orcid.org/0000-0001-9602-4901)
- S. Hirose
- S. Wang (ORCID: https://orcid.org/0000-0001-7477-4955)
- I. Mandić (ORCID: https://orcid.org/0000-0002-0131-7523)
- R. S. Orr
- Y. Huang
- H. Li (ORCID: https://orcid.org/0009-0003-1487-5940)
Institutions
- University of Tsukuba (JP)
- Sun Yat-sen University (CN)
- University of California, Santa Cruz (US)
- University of Toronto (CA)
- Chinese Academy of Sciences (CN)
- Jožef Stefan Institute (SI)
- China Spallation Neutron Source (CN)
- Institute of High Energy Physics (CN)
- Institut de Microelectrònica de Barcelona (ES)
- University of Birmingham (GB)
- University of South China (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
- Published
- 2025-06-13
- DOI
- https://doi.org/10.1016/j.nima.2025.170707
- Primary Topic
- Particle Detector Development and Performance
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Innovative Research Group Project of the National Natural Science Foundation of China
- National Natural Science Foundation of China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials
- Office of Nuclear Energy
- Key Technologies Research and Development Program