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Evaluation of an ul...
Evaluation of an ultra-fast photon-counting energy-resolved ASIC for spectral CT
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- Xu, Cheng (författare)
- KTH,Medicinsk bildfysik,Royal institute of technology, AlbaNova University Center
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- Yveborg, Moa (författare)
- KTH,Medicinsk bildfysik,Royal institute of technology, AlbaNova University Center
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- Chen, Han (författare)
- KTH,Fysik,Royal institute of technology, AlbaNova University Center
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- Danielsson, Mats (författare)
- KTH,Medicinsk bildfysik,Royal institute of technology, AlbaNova University Center
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- Karlsson, Staffan (författare)
- KTH,Medicinsk bildfysik,Royal institute of technology, AlbaNova University Center
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- Svensson, Christer (författare)
- Linköpings universitet,Elektroniska komponenter,Tekniska högskolan
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- Bornefalk, Hans (författare)
- KTH,Medicinsk bildfysik,Royal institute of technology, AlbaNova University Center
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(creator_code:org_t)
- SPIE - International Society for Optical Engineering, 2012
- 2012
- Engelska.
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Ingår i: Progress in Biomedical Optics and Imaging - Proceedings of SPIE. - : SPIE - International Society for Optical Engineering. - 9780819489623 ; , s. 83130Y-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We have developed an ultra-fast photon-counting energy-resolved application specific integrated circuit (ASIC) for spectral computed tomography (CT). A comprehensive characterization has been carried out to investigate the performance of the ASIC in terms of energy resolution under different photon flux rates and the count rate linearity in photon-counting mode. An energy resolution of 4.7 % has been achieved for 59.5 keV low flux photons. The count rate performance of the ASIC was measured with 120 kVp polychromatic x-rays. The results indicate that the count rate linearity can be kept for a flux rate up to 150 Mphotons s -1 mm -2 with retained energy information, and this value is increased to be 250 Mphotons s -1 mm -2 in photon-counting mode.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- ASIC
- photon counting
- silicon strip detector
- spectral CT
- Computed Tomography
- Count rate performance
- Count rates
- Energy information
- Energy resolutions
- Flux rates
- Low flux
- Photon flux
- Photon-counting mode
- Polychromatic x-rays
- Silicon Strip Detectors
- Ultra-fast
- Application specific integrated circuits
- Computerized tomography
- Medical imaging
- Photons
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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