Charge collection study with the ATLAS ITk prototype silicon strip sensors ATLAS17LS
Charge collection study with the ATLAS ITk prototype silicon strip sensors ATLAS17LS
复制标题
使用 ATLAS ITk 原型硅条传感器 ATLAS17LS 进行电荷收集研究
DOI：
10.1016/j.nima.2020.164422
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Hara K
中科院分区：
文献类型：
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作者：
Hara K
ATLAS探测器的内部跟踪器计划被一个全新的硅基内部跟踪器（ITk）取代，用于CERN LHC（HL-LHC）的第二阶段。硅条探测器覆盖径向40< R< 100 cm的体积，|z|纵向< 300 cm。探测器的硅传感器将使用n+-on-p 6英寸晶圆技术制造，总共22，000个晶圆。对Hamamatsu Photonics（HPK）制造的最终原型传感器ATLAS 17 LS进行了深入研究。用90 Sr β射线穿透法和ALIBAVA快速读出系统对面积为1cm × 1cm的微型传感器的电荷收集性能进行了测试。在27 MeV伯明翰回旋加速器、东北大学70 MeV CYRIC和24 GeV CERN PS中对样品进行了质子辐照，在卢布尔雅那TRIGA反应堆中进行了中子辐照，通量值高达2× 1015 neq/cm 2。发现电荷收集随通量的变化与之前的原型ATLAS 12相似，并且对于ITk可接受。比较了具有两种活性厚度（300 μ m（标准）和240 μ m（薄））的传感器，观察到电荷收集的差异对于高达500 V的偏置电压是小的。一些样品还用高达2 MGy的γ辐射进行辐照，并且发现完全耗尽电压随着剂量而降低。这是由60 Co γ射线产生的康普顿电子引起的。总之，ATLAS 17 LS的设计及其制造技术已在ITk中得到验证。我们正处于传感器预生产阶段，首批传感器已于2020年1月交付。
The inner tracker of the ATLAS detector is scheduled to be replaced by a completely new silicon-based inner tracker (ITk) for the Phase-II of the CERN LHC (HL-LHC). The silicon strip detector covers the volume 40< R< 100 cm in the radial and| z|< 300 cm in the longitudinal directions. The silicon sensors for the detector will be fabricated using the n+-on-p 6-inch wafer technology, for a total of 22,000 wafers. Intensive studies were carried out on the final prototype sensors ATLAS17LS fabricated by Hamamatsu Photonics (HPK). The charge collection properties were examined using penetrating 90 Sr β-rays and the ALIBAVA fast readout system for the miniature sensors of 1 cm× 1 cm in area. The samples were irradiated by protons in the 27 MeV Birmingham Cyclotron, the 70 MeV CYRIC at Tohoku University, and the 24 GeV CERN-PS, and by neutrons at Ljubljana TRIGA reactor for fluence values up to 2× 10 15 n eq/cm 2. The change in the charge collection with fluence was found to be similar to the previous prototype ATLAS12, and acceptable for the ITk. Sensors with two active thicknesses, 300 μ m (standard) and 240 μ m (thin), were compared and the difference in the charge collection was observed to be small for bias voltages up to 500 V. Some samples were also irradiated with gamma radiation up to 2 MGy, and the full depletion voltage was found to decrease with the dose. This was caused by the Compton electrons due to the 60 Co gamma radiation. To summarize, the design of the ATLAS17LS and technology for its fabrication have been verified for implementation in the ITk. We are in the stage of sensor pre-production with the first sensors already delivered in January of 2020.
用于 ATLAS 内部跟踪器升级的强辐射带状传感器的电荷收集和场分布研究
DOI：
10.1016/j.nima.2016.04.035
发表时间：
2016
期刊：
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
--
作者：
Hara K
通讯作者：
Hara K
伯明翰大学伯明翰 MC40 辐照设施的最新成果和经验
DOI：
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发表时间：
2017
期刊：
影响因子：
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作者：
D. Briglin;J. Broughton;R. Canavan;A. Chisholm;L. Gonella;P. Knights;K. Nikolopoulos;D. Parker;J. Wilson;A. Affolder
通讯作者：
A. Affolder
测量辐照微型传感器中的电荷收集，以升级 ATLAS II 期带状跟踪器
DOI：
--
发表时间：
2019
期刊：
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
--
作者：
V. Cindro;S. H. Abidi;A. Affolder;M. Arratia;B. Ciungu;K. Dette;Z. Doležal;C. Escobar;V. Fadeyev;C. García;I. Gregor;K. Hara;L. Hommels;Y. Ikegai;P. Kodyš;G. Kramberger;J. Kroll;C. Lacasta;V. Latonova;D. Madaffari;I. Mandić;M. Mikestikova;M. Mikuž;M. Miñano;K. Nakamura;R. Orr;D. Rodriguez;E. Rossi;C. Solaz;U. Soldevila;J. Suzuki;R. Teuscher;Y. Unno;S. Wada
通讯作者：
S. Wada