Assessment of proton radiation-induced charge transfer inefficiency in the CCD273 detector for the Euclid Dark Energy Mission

Assessment of proton radiation-induced charge transfer inefficiency in the CCD273 detector for the Euclid Dark Energy Mission
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欧几里得暗能量任务 CCD273 探测器中质子辐射引起的电荷转移效率低下的评估

DOI:
10.1117/12.925980
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发表时间:
2012
期刊:
--
影响因子:
--
通讯作者:
Gow J
Gow J
中科院分区:
--
文献类型:
--
作者:
Gow J

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欧几里德是一项中级任务,选择于2019年发射,主要目标是使用弱透镜和重子声振荡技术研究暗宇宙。弱透镜依赖于精确的形状测量,因此,了解并最小化欧几里得CCD在六年任务中辐射诱导的电荷转移低效(CTI)的影响是有益的。本文介绍了e2v Technologies plc公司生产的CCD273的抗辐射电荷转移效率(CTI)能力的初步评估,并与以前选择用于欧几里得CCD203的CCD273进行了比较。CCD273得益于包括用于陷阱抑制的电荷注入结构以及寄存器沟道宽度的减小。通过将沟道宽度从50μm减小到20μm,实验测量到对辐射诱导的连续CTI的耐受性提高了1.7倍,与使用电荷体积模型发现的1.9倍相比很好
Euclid is a medium class mission selected for launch in 2019, with a primary goal to study the dark universe using the weak lensing and baryonic acoustic oscillations techniques. Weak lensing depends on accurate shape measurements, therefore it is beneficial that the effects of radiation-induced charge transfer inefficiency (CTI) in the Euclid CCD over the six year mission are understood and minimised. This paper describes the initial evaluation of the tolerance to radiation induced charge transfer inefficiency (CTI) of the CCD273 produced by e2v technologies plc, making comparisons with the previous CCD selected for Euclid the CCD203. The CCD273 benefits from the inclusion of a charge injection structure for trap suppression and a reduction in the register channel width. The improvement in tolerance to radiation induced serial CTI achieved by reducing the channel width from 50 μm to 20 μm was measured experimentally to be a factor of 1.7, which compares well to a factor of 1.9 found using a charge volume model
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DOI: --
发表时间: 2012
期刊: Other Conferences
影响因子: --
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影响因子: 3.1
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DOI: --
发表时间: 2009
期刊: Optical Engineering + Applications
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