Evaluation of 10MeV proton irradiation on 5.5 Mpixel scientific CMOS image sensor

Paul Vu; Boyd Fowler; Brian Rodricks; Janusz Balicki; Steve . Mims; Wang Li

doi:10.1117/12.868160

13 October 2010 Evaluation of 10MeV proton irradiation on 5.5 Mpixel scientific CMOS image sensor

Paul Vu, Boyd Fowler, Brian Rodricks, Janusz Balicki, Steve . Mims, Wang Li

Proceedings Volume 7826, Sensors, Systems, and Next-Generation Satellites XIV; 78261R (2010) https://doi.org/10.1117/12.868160
Event: SPIE Remote Sensing, 2010, Toulouse, France

Abstract

We evaluate the effects of 10 MeV proton irradiation on the performance of a 5.5 Mpixel scientific grade CMOS image sensor based on a 5T pixel architecture with pinned photodiode and transfer gate. The sensor has on-chip dual column level amplifiers and 11-bit single slope analog to digital converters (ADC) for high speed readout and wide dynamic range. The operation of the sensor is programmable and controlled by on-chip digital control modules. Since the image sensor features two identical halves capable of operating independently, we used a mask to expose only one half of the sensor to the proton beam, leaving the other half intact to serve as a reference. In addition, the pixel array and the digital logic control section were irradiated separately, at dose rates varying from 4 rad/s to 367 rad/s, for a total accumulated dose of 146 krad(Si) to assess the radiation effects on these key components of the image sensor. We report the resulting damage effects on the performance of the sensor including increase in dark current, temporal noise, dark spikes, transient effects and latch-up. The dark signal increased by about 55 e-/pixel after exposure to 14 krad (Si) and the dark noise increased from about 2.75e- to 6.5e-. While the number of hot pixels increased by 6 percent and the dark signal non uniformity degraded, no catastrophic failure mechanisms were observed during the tests, and the sensor did not suffer from functional failures.

Citation Download Citation

Paul Vu, Boyd Fowler, Brian Rodricks, Janusz Balicki, Steve . Mims, and Wang Li "Evaluation of 10MeV proton irradiation on 5.5 Mpixel scientific CMOS image sensor", Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 78261R (13 October 2010); https://doi.org/10.1117/12.868160

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available