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03a071cb9ae39bc6bcba7c3b71d4dd94 |
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793a732ea93a05f2c88fb21bb8165e95 |
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e4a5ce7f5a3d131eba01f5aeb1bfb354 |
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Creator |
ext-2ee39ea7e01438ecb965705343fd30c6 |
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Date |
2014 |
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Is Part Of |
repository |
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Is Part Of |
p0277786X |
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abstract |
CCDs continue to be the detector of choice for high resolution and high performance
space applications. One perceived drawback is their susceptibility to radiation damage,
in particular the formation of trap sites leading to a decrease in charge transfer
efficiency. To that end, ESA has started a programme to investigate a new generation
of devices based upon p-channel technology. The expectation is that once mature, p-channel
devices may offer a significant increase in tolerance to proton radiation over traditional
n-type buried channel CCDs. Early studies of e2v devices to assess the radiation hardness
of p-channel devices were limited by the quality of devices available, however more
recently, good quality p-channel CCD204s have been manufactured and studied. A more
detailed evaluation of p-channel CCDs is now underway to realise the full potential
of the technology for use in future high radiation environment space missions. A key
aspect is the development of a cryogenic test rig that will allow for the first time
a direct comparison of the radiation damage effects when the irradiation is performed
both traditionally unbiased at room temperature and cryogenically with the device
operational. Subsequent characterisations will also be performed on the cryogenic
device after periods of storage at room temperature to investigate the potential annealing
effects upon the lattice damage. Here we describe and present early results from an
extensive programme of testing which will address all key performance parameters for
p-channel CCDs, such as full electro-optical characterisation, assessment of radiation
hardness and investigation of trap species. |
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authorList |
authors |
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presentedAt |
ext-273bb1f20f5c3af91cdbde74bdc80354 |
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status |
peerReviewed |
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uri |
http://data.open.ac.uk/oro/document/863044 |
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uri |
http://data.open.ac.uk/oro/document/863045 |
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volume |
9154 |
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type |
AcademicArticle |
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type |
Article |
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label |
Murray, Neil J. ; Holland, Andrew D. ; Gow, Jason P. D. ; Hall, David J. ; Stefanov,
Konstantin D. ; Dryer, Ben J. ; Barber, Simeon and Burt, David J. (2014). Assessment
of the performance and radiation damage effects under cryogenic temperatures of a
P-channel CCD204s. In: High Energy, Optical, and Infrared Detectors for Astronomy
VI. |
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label |
Murray, Neil J. ; Holland, Andrew D. ; Gow, Jason P. D. ; Hall, David J. ; Stefanov,
Konstantin D. ; Dryer, Ben J. ; Barber, Simeon and Burt, David J. (2014). Assessment
of the performance and radiation damage effects under cryogenic temperatures of a
P-channel CCD204s. In: High Energy, Optical, and Infrared Detectors for Astronomy
VI. |
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label |
Murray, Neil J. ; Holland, Andrew D. ; Gow, Jason P. D. ; Hall, David J. ; Stefanov,
Konstantin D. ; Dryer, Ben J. ; Barber, Simeon and Burt, David J. (2014). Assessment
of the performance and radiation damage effects under cryogenic temperatures of a
P-channel CCD204s. In: High Energy, Optical, and Infrared Detectors for Astronomy
VI, article no. 91540P. |
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Title |
Assessment of the performance and radiation damage effects under cryogenic temperatures
of a P-channel CCD204s |
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in dataset |
oro |