Tracking radiation damage of Euclid VIS detectors after 1 year in space
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909236249755648 |
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| author | Skottfelt, Jesper Wander, Matt Cropper, Mark Dryer, Ben Hall, David J. Hayes, Richard Kelman, Bradley Kitching, Tom Kohley, Ralf Lagattuta, David Lee-Payne, Zoe Liebing, Patricia Massey, Richard McCracken, Henry Joy Nakajima, Reiko Nightingale, James |
| author_facet | Skottfelt, Jesper Wander, Matt Cropper, Mark Dryer, Ben Hall, David J. Hayes, Richard Kelman, Bradley Kitching, Tom Kohley, Ralf Lagattuta, David Lee-Payne, Zoe Liebing, Patricia Massey, Richard McCracken, Henry Joy Nakajima, Reiko Nightingale, James |
| contents | Due to the space radiation environment at L2, ESA's Euclid mission will be subject to a large amount of highly energetic particles over its lifetime. These particles can cause damage to the detectors by creating defects in the silicon lattice. These defects degrade the returned image in several ways, one example being a degradation of the Charge Transfer Efficiency, which appears as readout trails in the image data. This can be problematic for the Euclid VIS instrument, which aims to measure the shapes of galaxies to a very high degree of accuracy. Using a special clocking technique called trap pumping, the single defects in the CCDs can be detected and characterised. Being the first instrument in space with this capability, it will provide novel insights into the creation and evolution of radiation-induced defects and give input to the radiation damage correction of the scientific data. We present the status of the radiation damage of the Euclid VIS CCDs and how it has evolved over the first year in space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_01268 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tracking radiation damage of Euclid VIS detectors after 1 year in space Skottfelt, Jesper Wander, Matt Cropper, Mark Dryer, Ben Hall, David J. Hayes, Richard Kelman, Bradley Kitching, Tom Kohley, Ralf Lagattuta, David Lee-Payne, Zoe Liebing, Patricia Massey, Richard McCracken, Henry Joy Nakajima, Reiko Nightingale, James Instrumentation and Detectors Due to the space radiation environment at L2, ESA's Euclid mission will be subject to a large amount of highly energetic particles over its lifetime. These particles can cause damage to the detectors by creating defects in the silicon lattice. These defects degrade the returned image in several ways, one example being a degradation of the Charge Transfer Efficiency, which appears as readout trails in the image data. This can be problematic for the Euclid VIS instrument, which aims to measure the shapes of galaxies to a very high degree of accuracy. Using a special clocking technique called trap pumping, the single defects in the CCDs can be detected and characterised. Being the first instrument in space with this capability, it will provide novel insights into the creation and evolution of radiation-induced defects and give input to the radiation damage correction of the scientific data. We present the status of the radiation damage of the Euclid VIS CCDs and how it has evolved over the first year in space. |
| title | Tracking radiation damage of Euclid VIS detectors after 1 year in space |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2407.01268 |