Martha—First measurement results

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 : 2025-09-27 DOI:10.1016/j.nima.2025.171039

A. Bähr, J. Damore, M. Hensel, C. Koffmane, R. Lehmann, J. Ninkovic, G. Schaller, E. Prinker, R.H. Richter, M. Schnecke, F. Schopper, J. Treis

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引用次数: 0

Abstract

In order to achieve a pixel diode inherent signal amplification, Low Gain Avalanche Diodes (LGADs) have come into focus of pixel detector developments. However, in contrast to conventional diode arrays, the detector response in the pixel gap areas is still problematic for LGADs. The Monolithic Array of Reach THrough Avalanche photo diodes (MARTHA), is a novel concept for proportional mode Avalanche Photo Diodes (APDs), that provides a 100% fill factor and a high detection efficiency also in the gap regions. An n-doped field drop layer between the n+ pixel structure and an unstructured p-doped multiplication layer suppresses electric field peaks at the pixel edges and leads to a fairly homogeneous amplification over the sensor area. Edge breakdown suppression could already be demonstrated by static measurements on special diodes. In this paper we present further static and first dynamic and position dependent measurements on segmented sensors.

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玛莎-第一测量结果

为了实现像素二极管固有信号的放大，低增益雪崩二极管（LGADs）成为像素探测器发展的焦点。然而，与传统二极管阵列相比，探测器在像素间隙区域的响应仍然是lgad的问题。单片阵列雪崩光电二极管（MARTHA）是比例模式雪崩光电二极管（apd）的一个新概念，它提供100%的填充系数和在间隙区域的高检测效率。在n+像素结构和非结构化p掺杂倍增层之间的n掺杂场降层抑制了像素边缘的电场峰，并导致传感器区域上相当均匀的放大。边缘击穿抑制已经可以通过对特殊二极管的静态测量来证明。在本文中，我们提出了进一步的静态和首先动态和位置相关的测量分段传感器。

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.