Next Article in Journal
Mutual-Information-Based Incremental Relaying Communications for Wireless Biomedical Implant Systems
Next Article in Special Issue
Sub-THz Imaging Using Non-Resonant HEMT Detectors
Previous Article in Journal
Recent Advances of Malaria Parasites Detection Systems Based on Mathematical Morphology
Previous Article in Special Issue
Proton Radiation Effects on Dark Signal Distribution of PPD CMOS Image Sensors: Both TID and DDD Effects
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(2), 514; https://doi.org/10.3390/s18020514

Nuclear Radiation Degradation Study on HD Camera Based on CMOS Image Sensor at Different Dose Rates

1
Institute of Optics and Electronics, Chinese Academy of Sciences, No. 1 Guangdian Avenue Xihang Port, Shuangliu, Chengdu 610209, China
2
School of Optoelectronic Information, University of Electronic Science and Technology of China, No. 4, Block 2, North Jianshe Road, Chengdu 610054, China
3
University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Received: 19 December 2017 / Revised: 23 January 2018 / Accepted: 6 February 2018 / Published: 8 February 2018
(This article belongs to the Special Issue Image Sensors)
View Full-Text   |   Download PDF [2745 KB, uploaded 8 February 2018]   |  

Abstract

In this work, we irradiated a high-definition (HD) industrial camera based on a commercial-off-the-shelf (COTS) CMOS image sensor (CIS) with Cobalt-60 gamma-rays. All components of the camera under test were fabricated without radiation hardening, except for the lens. The irradiation experiments of the HD camera under biased conditions were carried out at 1.0, 10.0, 20.0, 50.0 and 100.0 Gy/h. During the experiment, we found that the tested camera showed a remarkable degradation after irradiation and differed in the dose rates. With the increase of dose rate, the same target images become brighter. Under the same dose rate, the radiation effect in bright area is lower than that in dark area. Under different dose rates, the higher the dose rate is, the worse the radiation effect will be in both bright and dark areas. And the standard deviations of bright and dark areas become greater. Furthermore, through the progressive degradation analysis of the captured image, experimental results demonstrate that the attenuation of signal to noise ratio (SNR) versus radiation time is not obvious at the same dose rate, and the degradation is more and more serious with increasing dose rate. Additionally, the decrease rate of SNR at 20.0, 50.0 and 100.0 Gy/h is far greater than that at 1.0 and 10.0 Gy/h. Even so, we confirm that the HD industrial camera is still working at 10.0 Gy/h during the 8 h of measurements, with a moderate decrease of the SNR (5 dB). The work is valuable and can provide suggestion for camera users in the radiation field. View Full-Text
Keywords: CMOS image sensor; radiation damage; dose rate; HD camera CMOS image sensor; radiation damage; dose rate; HD camera
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, C.; Hu, S.; Gao, C.; Feng, C. Nuclear Radiation Degradation Study on HD Camera Based on CMOS Image Sensor at Different Dose Rates. Sensors 2018, 18, 514.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top