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Proceedings of 10th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging — PoS(Pixel2022)最新文献

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Silicon detectors for precision track timing 用于精确轨道定时的硅探测器
G. Kramberger
Silicon detectors are the most widely used detector technology for precise tracking and vertex detectors at present experiments in particle physics. The requirements for future particle physics experiments are getting even more demanding, not only in required position resolution ( ∼ 𝑓 𝑒𝑤𝜇 m) and reduced pixel sizes, but also in ability to accurately, on the level of tens ps, measure the time of the particle hitting the detector. Among the hybrid pixel detectors there are two directions of developments. Thin Low gain avalanche detectors exploit internal gain to achieve required S/N and fast signal. On the other hand thicker 3D sensors exploit short drift distance given by vertical electrodes for fast charge collection and adequate signal. Monolithic Active Pixel Detectors offer a compromise between achievable signal/noise and thickness and recent developments exploiting also avalanche multiplication can offer excellent performance. The present paper will discuss basics, strengths and limitations of different technologies and possible directions of future developments.
硅探测器是目前粒子物理实验中应用最广泛的精确跟踪和顶点探测器技术。对未来粒子物理实验的要求越来越高,不仅要求位置分辨率(~𝑓𝑒𝑤m)和减小的像素尺寸,而且还要求能够精确地在几十ps的水平上测量粒子撞击探测器的时间。在混合像素探测器中,有两个发展方向。薄型低增益雪崩探测器利用内部增益来实现所需的信噪比和快速信号。另一方面,较厚的3D传感器利用垂直电极提供的较短漂移距离来快速收集电荷和获得足够的信号。单片有源像素检测器提供了可实现的信号/噪声和厚度之间的折衷,并且利用雪崩乘法的最新发展可以提供出色的性能。本文将讨论不同技术的基础、优势和局限性以及未来发展的可能方向。
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引用次数: 0
Preface to the Proceedings of PIXEL2022 PIXEL2022会议录前言
Sally Seidel
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引用次数: 0
Hadron Damage Investigation of FBK and HPK Low Gain Avalanche Detectors FBK和HPK低增益雪崩探测器强子损伤研究
J. Sorenson
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引用次数: 0
Simulation Study of Pulse Height Difference Between Pixel Patterns of X-ray CCDs Onboard the XRISM Satellite XRISM卫星x射线ccd像元模式脉冲高差仿真研究
Yuma Aoki, Yamato Ito, M. Nobukawa, Y. Kanemaru, Keitaro Miyazaki, Kohei Kusunoki, K. Mori, T. Yoneyama, T. Tamba, H. Tomida, H. Nakajima, H. Matsumoto, H. Noda, K. Hayashida, H. Uchida, Takaaki Tanaka, Hiromasa Suzuki, Tessei Yoshida, H. Murakami, M. Yamauchi, I. Hatsukade, K. Hagino, T. Kohmura, H. Uchiyama, K. Yamaoka, M. Ozaki, T. Dotani, H. Tsunemi, K. Nobukawa, T. Tsuru, S. Kobayashi, J. Hiraga
We have developed a soft X-ray telescope system Xtend onboard Japan’s new X-ray astronomical satellite XRISM. Xtend employs X-ray CCDs, which have basically the same design as those used in the previous X-ray astronomical satellite Hitomi. Monochromatic X-ray line spectra of the CCDs onboard Hitomi showed offsets of centroids between different pixel patterns or different good grades; the spectral centroids of charge-sharing events are higher than those of single-pixel events. The spectral offset, which we call “Goffset”, can cause large uncertainties in X-ray energy determination accuracy. In this paper, confirming the CCDs onboard XRISM also have Goffset, we performed a simulation study that takes into account the two factors; charge sharing and readout noise. Goffset of the flight model CCD is successfully reproduced by the simulation with a certain readout noise. We investigate how charge sharing and readout noise cause Goffset based on the simulation results.
我们在日本新的x射线天文卫星XRISM上开发了一个软x射线望远镜系统Xtend。Xtend使用x射线ccd,其设计与之前的x射线天文卫星Hitomi基本相同。Hitomi板载ccd的单色x射线谱显示出不同像素模式或不同优良等级之间的质心偏移;电荷共享事件的光谱质心高于单像素事件的光谱质心。光谱偏移,我们称之为“Goffset”,会对x射线能量测定精度造成很大的不确定性。在本文中,为了确认XRISM上的ccd也存在Goffset,我们进行了一个考虑这两个因素的仿真研究;电荷共享和读出噪声。在具有一定读出噪声的情况下,仿真成功地再现了飞行模型CCD的高斯偏移。基于仿真结果,我们研究了电荷共享和读出噪声是如何引起高斯偏移的。
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引用次数: 0
Characterization of Hybrid Pixel Detector With CdTe Sensor CdTe传感器混合像素检测器的特性研究
Leticia Braga Da Rosa, Larissa Mendes, Renato Negrao de Oliveira, Guilherme Paulino, Sara Santos, Robert Tartarotti, Pedro Oliveira, Thiago Barbosa, Alessandra Tomal
The X-ray techniques used in synchrotron sources have been an indispensable tool in studying the physical aspects of various fields, such as biology, chemistry, and materials science. The results of these experiments often depend on the performance of the detectors, especially when studying sample dynamics, which require fast and sensitive X-ray detectors. This work presents a description of the PIMEGA X-ray camera system based on 1 mm thick CdTe sensors with a 55 μ m pixel pitch bump-bonded to Medipix3RX ASICs. It is also described the preliminary results of the system’s prototype characterization and imaging capabilities, which were conducted in terms of spatial resolution, detective quantum efficiency, leakage current, full depletion, and equalization responses. The experiments were performed using the detector in super high gain mode, with a 12-bit configuration in Fine Pitch and Single-Pixel mode. The results show the high-quality imaging capabilities of the detector with excellent values of MTF and DQE.
在同步加速器源中使用的x射线技术已经成为研究生物、化学和材料科学等各个领域的物理方面不可或缺的工具。这些实验的结果往往取决于探测器的性能,特别是在研究样品动力学时,这需要快速灵敏的x射线探测器。本文介绍了一种基于1mm厚CdTe传感器的PIMEGA x射线相机系统,该传感器具有55 μ m像素间距,与Medipix3RX asic相结合。本文还描述了该系统在空间分辨率、探测量子效率、泄漏电流、完全耗尽和均衡响应方面的原型表征和成像能力的初步结果。实验使用超高增益模式下的探测器,在Fine Pitch和Single-Pixel模式下具有12位配置。结果表明,该探测器具有优良的MTF和DQE值,具有高质量的成像能力。
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引用次数: 0
Qualification of the first pre-production 3D FBK sensors with ITkPixV1 readout chip 具有ITkPixV1读出芯片的第一个预生产3D FBK传感器的鉴定
M. Ressegotti, G. Calderini, F. Crescioli, G. Dalla Betta, G. Gariano, C. Gemme, F. Guescini, S. Hadzic, T. Heim, A. Lapertosa, S. Ravera, A. Rummler, M. Samy, L. Vannoli, D. Sultan
The ITk detector, the new ATLAS silicon tracking system for the High Luminosity LHC (HL-LHC), will be equipped with 3D pixel sensor modules in the innermost layer (L0). The pixel cell dimensions will be 25 × 100 µ m 2 in the barrel and 50 × 50 µ m 2 in the end-caps, with one readout electrode at the centre of each pixel and four bias electrodes at the corners. Sensors from pre-production wafers (50 × 50 µ m 2 ) produced by FBK have been bump-bonded to ITkPixV1.1 chips at IZM. Bare modules have been assembled in Genoa on Single Chip Cards (SCCs) and characterized in laboratory measurements and in test beam campaigns. Some of these modules have been irradiated in Bonn and at the CERN IRRAD facility. Preliminary results of their characterization after irradiation
ITk探测器是用于高亮度大型强子对撞机(HL-LHC)的新型ATLAS硅跟踪系统,将在最内层(L0)配备3D像素传感器模块。筒体的像素单元尺寸为25 × 100 μ m 2,端盖的像素单元尺寸为50 × 50 μ m 2,每个像素的中心有一个读出电极,角落有四个偏置电极。FBK生产的预生产晶圆(50 × 50 μ m 2)的传感器已与IZM的ITkPixV1.1芯片碰撞结合。裸模块已经在热那亚的单芯片卡(SCCs)上组装,并在实验室测量和测试光束运动中进行了表征。其中一些模组已在波恩和欧洲核子研究中心辐照研究中心设施照射过。辐照后表征的初步结果
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引用次数: 0
A High Granularity Timing Detector for the ATLAS Phase II Upgrade 用于ATLAS第二阶段升级的高粒度定时检测器
Afonso Soares Canas Ferreira
The increase of the particle flux (pile-up) at the HL-LHC with instantaneous luminosities up to 𝐿 ≃ 7 . 5 × 10 34 cm − 1 s − 2 will have a severe impact on the ATLAS detector reconstruction and trigger performance. The end-cap and forward region where the liquid Argon calorimeter has coarser granularity and the inner tracker has poorer momentum resolution will be particularly affected. A High Granularity Timing Detector (HGTD) will be installed in front of the LAr end-cap calorimeters for pile-up mitigation and luminosity measurement. The HGTD is a novel detector introduced to assist the new all-silicon Inner Tracker (ITk) in the pseudo-rapidity range from 2.4 to 4.0, adding the capability to measure charged-particle trajectories in time as well as space. Two silicon-sensor double-sided layers will provide precision timing information for minimum-ionising particles with a resolution as good as 30 ps per track to help disentangle tracks from different vertices in the same bunch crossing. Readout cells have a size of 1.3 mm × 1.3 mm, leading to a highly granular detector with 3.7 million channels. Low Gain Avalanche Detectors (LGAD) technology has been chosen as it provides enough gain to reach the large signal over noise ratio needed. The requirements and overall specifications of the HGTD will be presented as well as the technical design and the project status. The on-going R&D effort carried out to study the sensors, the readout ASIC, and the other components, supported by laboratory and test beam results, will also be presented.
瞬时发光度高达𝐿的HL-LHC粒子通量(堆积)增加。5 × 10 34 cm−1 s−2将严重影响ATLAS探测器的重建和触发性能。液氩量热计粒度较粗、内部跟踪器动量分辨率较差的端盖和前向区域受到的影响尤为严重。高粒度定时探测器(HGTD)将安装在LAr端盖量热计前面,用于减少堆积和光度测量。HGTD是一种新型探测器,用于辅助新的全硅内跟踪器(ITk)在2.4到4.0的伪快度范围内,增加了在时间和空间上测量带电粒子轨迹的能力。两个硅传感器双面层将为最小电离粒子提供精确的定时信息,每个轨道的分辨率高达30 ps,以帮助在同一束交叉中从不同顶点解开轨道。读出单元的尺寸为1.3 mm × 1.3 mm,导致具有370万个通道的高颗粒检测器。低增益雪崩探测器(LGAD)技术已被选择,因为它提供足够的增益,以达到所需的大信噪比。介绍高压输水系统的要求和整体规格,以及技术设计和工程进度。还将介绍正在进行的研发工作,以研究传感器,读出ASIC和其他组件,并由实验室和测试光束结果支持。
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引用次数: 14
The ALICE Pixel Sensor Upgrade ALICE像素传感器升级
L. Lautner
The inner tracking system (ITS2) of the ALICE experiment is foreseen to be upgraded during the Long Shutdown 3 of the Large Hadron Collider (LHC). First data are expected to be taken during Run 4 with the upgraded High-Luminosity LHC. The planned ITS3 detector will be based on stitched, wafer-scale Monolithic Active Pixel Sensors (MAPS), bent to radii of 18, 24, and 30 mm and fabricated on 300 mm wafers in a 65 nm CMOS Imaging technology. They will be thinned down to below 50 µ m and held in place by carbon foam spacers, resulting in an unprecedented material budget of O(0.05%) 𝑋 / 𝑋 0 per layer. This contribution will present the detector concept, summarise the results of the R&D program, including most recent 65 nm prototypes, and provide an outlook on the path towards the final sensor development.
ALICE实验的内部跟踪系统(ITS2)预计将在大型强子对撞机(LHC)长时间关闭期间进行升级。第一批数据预计将在运行4期间使用升级后的高亮度LHC进行采集。计划中的ITS3探测器将基于缝合的晶圆级单片有源像素传感器(MAPS),弯曲成18、24和30毫米的半径,并在300毫米晶圆上采用65纳米CMOS成像技术制造。它们将被减薄至50微米以下,并由碳泡沫垫片固定,每层的材料预算为0(0.05%)𝑋/𝑋。这篇文章将介绍探测器的概念,总结研发计划的结果,包括最近的65纳米原型,并对最终传感器的发展道路进行展望。
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引用次数: 1
The LHCb Mighty Tracker LHCb强力追踪器
K. Padeken
During the long shutdown 4 of the LHC the instantaneous luminosity will be increased by a factor of ≈ 10 to 1 . 5 · 10 34 cm − 2 s − 1 . The expected data recorded with the LHCb detector will increase from 50 fb − 1 to 300 fb − 1 . This will require an upgrade of the LHCb tracking systems. For the downstream tracker this upgrade detector is referred to as the Mighty Tracker. The innermost part of the Mighty Tracker is planned to be instrumented with monolithic CMOS sensors. The outer part will keep the scintillating fibre approach of the currently installed SciFi detector. There are several aspects that make this a unique environment for a tracking detector. The high occupancy in the high 𝜂 region of LHCb (hit rates up to 18 MHz/cm 2 ), the harsh radiation conditions (6 · 10 14 1 MeV n eq / cm 2 ), the streaming readout approach with low material budget ( 𝑋 / 𝑋 0 < 1 . 5%) requirements are just naming a few key challenges. This can be achieved by newly developed HV-CMOS sensors which can provide a high timing resolution of ≈ 3 ns and are sufficiently radiation hard. The planned total instrumented pixel area is up to 18 m 2 of silicon. This paper will describe the plans for the Mighty Tracker and initial beam tests with the precursor of the MightyPix chip.
在大型强子对撞机的长时间关闭期间,瞬时光度将增加约10到1倍。5·10·34 cm−2 s−1。LHCb探测器记录的预期数据将从50 fb−1增加到300 fb−1。这将需要对LHCb跟踪系统进行升级。对于下游跟踪器,这个升级检测器被称为强力跟踪器。强力追踪器的最内部部分计划配备单片CMOS传感器。外部部分将保留当前安装的科幻探测器的闪烁光纤方法。有几个方面使这成为跟踪探测器的独特环境。LHCb高𝜂区域的高占用率(命中率高达18 MHz/ cm2),恶劣的辐射条件(6·10 14 1 MeV n eq / cm2),低材料预算的流式读出方法(𝑋/𝑋0 < 1)。5%)的需求只是列举了几个关键的挑战。这可以通过新开发的HV-CMOS传感器来实现,该传感器可以提供≈3 ns的高时序分辨率,并且具有足够的抗辐射性。计划的总仪器像素面积高达18平方米的硅。本文将描述Mighty Tracker的计划以及使用MightyPix芯片的前体进行的初始光束测试。
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引用次数: 0
Overview on Current State of the Art Pixel Mechanics for the Upgrade Tracking Detectors at the ATLAS and CMS Experiments ATLAS和CMS实验中升级跟踪探测器的像素力学现状综述
O. Shea
The pixel tracking detectors in the ATLAS and CMS experiments are scheduled to be replaced with upgraded versions during the next long shutdown period at the LHC. The upgraded detectors are designed to take advantage of the high-luminosity operation of the LHC which is due to begin in 2029. This means that the active sensor area must increase
ATLAS和CMS实验中的像素跟踪探测器计划在大型强子对撞机的下一个长期关闭期间更换为升级版本。升级后的探测器旨在利用将于2029年开始的大型强子对撞机的高亮度运行。这意味着有源传感器面积必须增加
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引用次数: 0
期刊
Proceedings of 10th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging — PoS(Pixel2022)
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