First tests of a reconfigurable depleted MAPS sensor for digital electromagnetic calorimetry
First tests of a reconfigurable depleted MAPS sensor for digital electromagnetic calorimetry
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DOI：
10.1016/j.nima.2019.162654
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发表时间：
2020-04-01
影响因子：
1.4
通讯作者：
Zhang, Z.
中科院分区：
文献类型：
--
作者：
Allport, P. P.;Bosley, R.;Zhang, Z.
数字电磁量热法依赖于高度颗粒化的检测器，其中单元尺寸足够小，使得在单个读出周期内只有单个粒子在簇射中进入每个单元。DECAL传感器是一种耗尽型单片有源像素传感器（DMAPS），已被提出作为未来数字量热计的可能技术。一个DECAL传感器原型已被设计和制造的TowerJazz 180 nm CMOS成像工艺，使用高电阻率18 μ m的外延硅层。该原型具有64 × 64像素的像素矩阵，间距为55 × 55 μ m，并使用40 MHz的快速逻辑读出。它可以被配置为用作条形传感器，用于颗粒跟踪，或垫传感器，计算数字量热法阈值以上的像素数。芯片特性的初步结果，包括数字求和逻辑，模拟像素的性能和阈值扫描激光照明下。
Digital Electromagnetic CALorimetry relies on a highly granular detector where the cell size is sufficiently small so that only a single particle in a shower enters each cell within a single readout cycle. The DECAL sensor, a depleted monolithic active pixel sensor (DMAPS), has been proposed as a possible technology for future digital calorimeters. A DECAL sensor prototype has been designed and fabricated in the TowerJazz 180 nm CMOS imaging process, using a high resistivity 18 mu m epitaxial Si layer. The prototype has a pixel matrix of 64 x 64 pixels with a pitch of 55 x 55 mu m, and is read out using fast logic at 40 MHz. It can be configured to function as either a strip sensor, for particle tracking, or a pad sensor, counting the number of pixels above threshold for digital calorimetry. Preliminary results of chip characterisation, including digital summing logic, analogue pixel performance and threshold scans under laser illumination are presented.