Evidence map›Paper›PMID 40558802›Full record

ArticleJournal of imaging2025

Performance Calibration of the Wavefront Sensor's EMCCD Detector for the Cool Planets Imaging Coronagraph Aboard CSST.

Jiangpei Dou, Bingli Niu, Gang Zhao, Xi Zhang, Gang Wang, Baoning Yuan, Di Wang, Xingguang Qian

Erratum issuedAbstract read
In one paragraph

Article in Journal of imaging, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Jiangpei DouNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Bingli NiuNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Gang ZhaoNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.ORCID 0000-0001-8544-0280
Xi ZhangNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Gang WangNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Baoning YuanNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Di WangNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.
Xingguang QianNanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China.

Funding

China Postdoctoral Science Foundation 2024M763371National Natural Science Foundation of China U2031210 and 11827804Natural Science Foundation of Jiangsu Province BK20241708The China Manned Space Program CMS-CSST-2025-A18, CMS-CSST-2021-A11, CMS-CSST-2021-B04, AND CMS-CSST-201906
6 · The paper itself

Abstract

The wavefront sensor (WFS), equipped with an electron-multiplying charge-coupled device (EMCCD) detector, is a critical component of the Cool Planets Imaging Coronagraph (CPI-C) on the Chinese Space Station Survey Telescope (CSST). Precise calibration of the WFS's EMCCD detector is essential to meet the stringent requirements for high-contrast exoplanet imaging. This study comprehensively characterizes key performance parameters of the detector to ensure its suitability for astronomical observations. Through a multi-stage screening protocol, we identified an EMCCD chip exhibiting high resolution and low noise. The electron-multiplying gain (EM Gain) of the EMCCD was analyzed to determine its impact on signal amplification and noise characteristics, identifying the optimal operational range. Additionally, noise properties such as readout noise were investigated. Experimental results demonstrate that the optimized detector meets CPI-C's initial application requirements, achieving high resolution and low noise. This study provides theoretical and experimental foundations for the use of EMCCD-based WFS in adaptive optics and astronomical observations, ensuring their reliability for advanced space-based imaging applications.

Indexed as

CPI-CCSSTEMCCD detectorhigh-contrast imagingperformance calibration

Identifiers

PMID40558802
PMCPMC12194196

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.