Evaluation of the DECAL Fully Depleted monolithic sensor for outer tracking and digital calorimetry
Evaluation of the DECAL Fully Depleted monolithic sensor for outer tracking and digital calorimetry
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DOI：
10.1016/j.nima.2022.166955
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发表时间：
2022-06-15
影响因子：
1.4
通讯作者：
Zhang, Z.
中科院分区：
文献类型：
--
作者：
Kopsalis, I.;Allport, P.;Zhang, Z.
DECAL传感器是一种耗尽型单片有源像素传感器（DMAPS），旨在探索数字电磁量热计的技术解决方案。对于该应用，高于阈值的像素的数量用于估计簇射能量，因此像素尺寸需要足够小以避免命中饱和。DECAL和DECAL全耗尽（FD）传感器已设计和制造的TowerJazz 180 nm CMOS标准和修改的成像过程中，分别。后者对植入物配置进行了修改，以提高电荷收集和辐射硬度，包括达到FCC-hh的桶ECAL区域所需的水平（少数10（15）n（eq）/cm（2））。两种DECAL变体都具有64 x 64像素的矩阵，间距为55 pm，每25 ns读出一次。对于DECAL FD，逻辑已被修改，以将像素内比较器阈值调整范围从5位扩展到6位，第6位用于停用比较器。表征结果的DECAL FD，包括像素均衡矩阵，阈值扫描测试下的单色X射线和Sr-90源，提出。
The DECAL sensor is a depleted monolithic active pixel sensor (DMAPS) being developed to explore technological solutions for digital electromagnetic calorimeters. For this application, the number of pixels above threshold is used to estimate the shower energy and therefore the pixel size is required to be sufficiently small to avoid hit saturation. The DECAL and DECAL Fully Depleted (FD) sensors have been designed and fabricated in the TowerJazz 180 nm CMOS standard and modified imaging processes, respectively. The latter uses modifications to the implant configuration that improve charge collection and radiation hardness, including to the levels required for barrel ECAL regions of FCC-hh (few 10(15) n(eq)/cm(2)). Both DECAL variants feature a matrix of 64 x 64 pixels with a pitch of 55 pm, read out every 25 ns. For DECAL FD, the logic has been modified to extend the in-pixel comparator threshold trim range from five to six bits, with the sixth bit used to de-activate the comparator. Characterisation results for the DECAL FD, including the pixel equalisation matrix, threshold scans testing under monochromatic X-rays and Sr-90 source, are presented.