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Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE

Publication ,  Conference
Soman, MR; Allanwood, EAH; Holland, AD; Stefanov, K; Pratlong, J; Leese, M; Gow, JPD; Smith, DR
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 2016

The Jupiter Icy Moon Explorer (JUICE) has been officially adopted as the next Large class mission by the European Space Agency, with a launch date of 2022. The science payload includes an optical camera, JANUS, which will perform imaging and mapping observations of Jupiter, its moons and icy rings. A 13 slot filter wheel will be used to provide spectral information in order for the JANUS experiment to study the geology and physical properties of Ganymede, Europa and Io, and to investigate processes and structures in the atmosphere of Jupiter. The sensor selected for JANUS is the back-Thinned CIS115, a 3 MPixel CMOS Image Sensor from e2v technologies. The CIS115 has a 4-Transistor pixel design with a pinned photodiode to improve signal to noise performance by reducing dark current and allowing for reset level subtraction. The JUICE mission will consist of an 8 year cruise phase followed by a 3 year science phase in the Jovian system. Models of the radiation environment throughout the JUICE mission predict that the End of Life (EOL) non-ionising damage will be equivalent to 1010 protons cm-2 (10 MeV) and the EOL ionising dose will be 100 krad(Si), once the shielding from the spacecraft and instrument design is taken into account. An extensive radiation campaign is therefore being carried out to qualify and characterise the CIS115 for JANUS, as well as other space and terrestrial applications. Radiation testing to take the CIS115 to twice the ionising dose and displacement damage levels was completed in 2015 and the change in sensor performance has been characterised. Good sensor performance has been observed following irradiation and a summary of the key results from the campaign using gamma irradiation (ionising dose) will be presented here, including its soft X-ray detection capabilities, flat-band voltage shift and readout noise. In 2016, further radiation campaigns on flight-representative CIS115s will be undertaken and their results will be disseminated in future publications.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

ISBN

9781510602090

Publication Date

January 1, 2016

Volume

9915

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Soman, M. R., Allanwood, E. A. H., Holland, A. D., Stefanov, K., Pratlong, J., Leese, M., … Smith, D. R. (2016). Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9915). https://doi.org/10.1117/12.2234290
Soman, M. R., E. A. H. Allanwood, A. D. Holland, K. Stefanov, J. Pratlong, M. Leese, J. P. D. Gow, and D. R. Smith. “Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE.” In Proceedings of SPIE - The International Society for Optical Engineering, Vol. 9915, 2016. https://doi.org/10.1117/12.2234290.
Soman MR, Allanwood EAH, Holland AD, Stefanov K, Pratlong J, Leese M, et al. Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE. In: Proceedings of SPIE - The International Society for Optical Engineering. 2016.
Soman, M. R., et al. “Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 9915, 2016. Scopus, doi:10.1117/12.2234290.
Soman MR, Allanwood EAH, Holland AD, Stefanov K, Pratlong J, Leese M, Gow JPD, Smith DR. Electro-optic and radiation damage performance of the CIS115, an imaging sensor for the JANUS optical camera onboard JUICE. Proceedings of SPIE - The International Society for Optical Engineering. 2016.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

ISBN

9781510602090

Publication Date

January 1, 2016

Volume

9915

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering