The Malta CMOS pixel detector prototype for the ATLAS Pixel ITK

Proceedings of The 27th International Workshop on Vertex Detectors — PoS(VERTEX2018) Pub Date : 2019-09-03 DOI:10.22323/1.348.0014

Abhishek Sharma, L. S. Argemi, I. Tortajada, I. Berdalovic, D. Bortoletto, R. Cardella, F. Dachs, V. Dao, T. Hemperek, B. Hiti, T. Kugathasan, K. Moustakas, H. Pernegger, P. Riedler, P. Rymaszewski, C. Riegel, E. J. Schioppa, W. Snoeys, C. S. Sánchez, Tianyang Wang, Wermes Norbert, C. A. M. Tobon

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引用次数: 4

Abstract

The ATLAS experiment is planning a major upgrade of its tracking detectors, both strip and pixel, to take full advantage of the High Luminosity LHC. A novel Monolithic Active Pixel Sensor based on 180 nm TowerJazz CMOS imaging technology, dubbed MALTA, has been designed to meet the radiation hardness requirements (1.5x1015 1 MeV neq/cm2) of the outer barrel layers of the ITk Pixel detector. MALTA combines low noise (ENC<20 e−) and low power operation (1 μW/pixel) with a fast signal response (25 ns bunch crossing) in small pixel size (36.4x36.4 μm2), with a novel high-speed asynchronous readout architecture to cope with the high hit-rates expected at HL-LHC. Extensive lab testing and characterisation in particle beam tests have been conducted on this design and compared with previous prototypes of the same technology. An overview of the sensor technology and readout architecture are presented along with the preliminary results from laboratory tests, radioactive source tests and beam tests.

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ATLAS pixel ITK的Malta CMOS像素探测器原型

ATLAS实验计划对其条带和像素跟踪探测器进行重大升级，以充分利用高亮度LHC的优势。一种基于180nm TowerJazz CMOS成像技术的新型单片有源像素传感器MALTA被设计用于满足ITk Pixel探测器外筒层的辐射硬度要求(1.5 x10151mev neq/cm2)。MALTA结合了低噪声(ENC<20 e−)和低功耗(1 μW/像素)，在小像素尺寸(36.4 × 36.4 μm2)下具有快速的信号响应(25 ns束交叉)，以及新颖的高速异步读出架构，以应对HL-LHC期望的高命中率。在此设计上进行了大量的实验室测试和粒子束测试，并与先前相同技术的原型进行了比较。概述了传感器技术和读出架构，以及实验室测试、放射源测试和光束测试的初步结果。

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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Proceedings of The 27th International Workshop on Vertex Detectors — PoS(VERTEX2018)

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