Radiation effects of CERN-PS 24 GeV/c protons in silicon strip sensors, evaluated with ATLAS18 ITk strip sensor test structures

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-08-07 DOI:10.1016/j.nima.2025.170917

I. Mandić , V. Cindro , M. Mikuž , B. Novak , P. Federičová , R. Jirásek , J. Kroll , J. Kvasnička , M. Mikeštíková , P. Tůma , V. Fadeyev , Y. Unno , E. Bach , C. Fleta , M. Ullan , U. Soldevila , R.S. Orr , C.K. Mahajan , S.K. Sridhar , A.S. Chisholm , I. Dawson

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Abstract

Test structures from the ATLAS18 ITk strip detector wafers were irradiated with 24 GeV/c protons. These test structures were positioned at various angles with respect to the proton beam. Blocks of G10 material were placed in front of these test structures to study the effect of scattering of primary protons on the received particle fluence. The results confirm that both the incidence angle of the beam and scattering significantly influence the actual fluence to which the samples are exposed. Miniature strip detectors, first irradiated with protons, were also irradiated with reactor neutrons, to a combined fluence of

Φ_{n e q} = 1.6 \times 1 0^{15}

cm⁻². The combination of proton and neutron fluences matched the combination expected in the most exposed part of the strip detector in the ALTAS Inner Tracker (ITk). Good charge collection was measured confirming that the strip detectors are sufficiently radiation hard for successful operation to highest fluences expected at the HL-LHC.

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用ATLAS18 ITk条带传感器测试结构评价CERN-PS 24gev /c质子在硅条传感器中的辐射效应

用24gev /c质子辐照ATLAS18 ITk条形探测器晶片的测试结构。这些测试结构被放置在与质子束不同的角度。在这些测试结构前放置G10材料块，研究初级质子散射对接收粒子通量的影响。结果证实，光束入射角和散射对样品实际暴露的影响显著。微型条形探测器，首先用质子照射，也用反应堆中子照射，总影响为Φneq=1.6×1015 cm−2。质子和中子的组合与ALTAS内部跟踪器（ITk）中条形探测器最暴露部分的组合相匹配。测量了良好的电荷收集，证实了条形探测器具有足够的辐射强度，可以在HL-LHC上成功运行，达到预期的最高影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.