2003
DOI: 10.1117/12.461289
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Radiation damage test of the x-ray CCDs for MAXI onboard the International Space Station

Abstract: We have investigated the radiation damage effects on a CCD to be employed in the Japanese X-ray astronomy mission including the Monitor of All-sky X-ray Image (MAXI) onboard the International Space Station (ISS). The X-ray CCD camera, ACIS, onboard Chandra have been seriously damaged by low energy protons having energy of ∼150 keV since low energy protons release their energy mainly at the charge transfer channel, resulting a decrease of the charge transfer efficiency. We thus focused on the low energy protons… Show more

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Cited by 2 publications
(1 citation statement)
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“…This accumulated dose rules out traditional X-ray CCD imagers, which normally would be the focal plane detector of choice for low-energy, high-resolution imaging. X-ray CCDs can be severely degraded by all forms of ionizing radiation (e.g., Miyata et al, 2003). Furthermore, depending on the shielding employed and its efficiency, one can expect raw detector count rates anywhere from ∼10 4 to 10 6 counts cm −2 -s −1 .…”
Section: General Descriptionmentioning
confidence: 99%
“…This accumulated dose rules out traditional X-ray CCD imagers, which normally would be the focal plane detector of choice for low-energy, high-resolution imaging. X-ray CCDs can be severely degraded by all forms of ionizing radiation (e.g., Miyata et al, 2003). Furthermore, depending on the shielding employed and its efficiency, one can expect raw detector count rates anywhere from ∼10 4 to 10 6 counts cm −2 -s −1 .…”
Section: General Descriptionmentioning
confidence: 99%