The Solar Ultra-Violet Imaging Telescope: Detector characterization and readout electronics testing

RAS Techniques and Instruments Pub Date : 2023-05-22 DOI:10.1093/rasti/rzad013

S. V. M. Varma, Anurag Tyagi, Bhushan D. Joshi, Reena Yadav, Pravin A. Chordia, Ghanshyam Kumar, Sakya Sinha, M. Burse, Sreejith Padinhatteri, Rushikesh Deogaonkar, A. Ramaprakash, A. Ghosh, D. Tripathi, Janmejoy Sarkar, K. Sankarasubramanian, K. Nagaraju, K. Vadodariya, R. Kesharwani, Aafaque R. Khan, Manjunath Olekar, Mohamed Azaruddin

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Abstract

The Solar Ultraviolet Imaging Telescope (SUIT) is one of the payloads onboard the Aditya-L1 mission. It will perform full disk imaging of the Sun in the near-Ultraviolet wavelength range of 200-400 nm. This provides near-simultaneous observations of the Sun from the photosphere and chromosphere. A back-illuminated, enhanced UV Charge Coupled Device (CCD) of size 4096 (H) × 4136 (V) pixels, with a pixel size of 12 μm, is used as an imaging element in SUIT. The CCD characterization and the readout electronics development and testing were performed in-house at the Space Astronomy Group (SAG), UR Rao Satellite centre, ISRO. The test setup and procedures are explained and the measured values of various parameters including noise, dark current, gain, linearity, and cross-talk are presented in this paper. The results show a satisfactory performance from the CCD as well as the readout electronics to meet the specifications required by the SUIT payload.

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太阳紫外成像望远镜:探测器特性和读出电子测试

太阳紫外成像望远镜(SUIT)是Aditya-L1任务的有效载荷之一。它将在200-400纳米的近紫外波长范围内对太阳进行全盘成像。这提供了从光球层和色球层几乎同时观测太阳的机会。采用4096 (H) × 4136 (V)像素的背照增强型紫外电荷耦合器件(CCD)作为SUIT的成像元件，像素尺寸为12 μm。CCD特性和读出电子器件的开发和测试是在印度空间研究组织(ISRO)的空间天文小组(SAG)的UR Rao卫星中心进行的。本文介绍了测试装置和步骤，并给出了各种参数的测量值，包括噪声、暗电流、增益、线性度和串扰。结果表明，CCD和读出电子器件的性能令人满意，满足了SUIT有效载荷的要求。

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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RAS Techniques and Instruments

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