Zobrazeno 1 - 10
of 33
pro vyhledávání: '"S, Gkoumas"'
Autor:
J. Scholz, L. Birnbacher, C. Petrich, M. Riedel, L. Heck, S. Gkoumas, T. Sellerer, K. Achterhold, J. Herzen
Publikováno v:
APL Photonics, Vol 5, Iss 10, Pp 106108-106108-9 (2020)
Photon-counting detectors provide several potential advantages in biomedical x-ray imaging including fast and readout noise free data acquisition, sharp pixel response, and high dynamic range. Grating-based phase-contrast imaging is a biomedical imag
Externí odkaz:
https://doaj.org/article/ba1db1fd89e0446a92198eb854c597e3
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 992:165046
X-ray photon counting detectors featuring high-Z sensor materials such as CdTe, CdZnTe and GaAs have the possibility to greatly improve the field of medical imaging. In this work, we investigated the energy resolving capabilities and imaging performa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f87dccc150b5cae2e1f90242de2f823
https://doi.org/10.1016/j.nima.2021.165046
https://doi.org/10.1016/j.nima.2021.165046
Publikováno v:
Diamond and Related Materials. 18:1338-1342
We study the temperature dependence of low charge injection drift mobility in single crystal (SC) diamond using an alpha particle source. We present time of flight (ToF) mobility measurements to investigate the charge carrier scattering mechanisms in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dac086219e8126b13bb641fb6eafa9cb
https://doi.org/10.1016/j.diamond.2009.07.006
https://doi.org/10.1016/j.diamond.2009.07.006
Autor:
S. Gkoumas, A.W. Davies, V Perumal, J. Parkin, Annika Lohstroh, Paul J. Sellin, G. Prekas, Matthew C. Veale, M.E. Ozsan
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 266:1300-1306
Ion beam induced charge (IBIC) imaging is a powerful technique for quantitative mapping of the charge transport performance of wide bandgap semiconductor materials. In this paper we present results from a study of electron and hole mobility–lifetim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9043cdd92161d315b1f6d1b5fde300f8
https://doi.org/10.1016/j.nimb.2007.11.074
https://doi.org/10.1016/j.nimb.2007.11.074
Autor:
A, Olivo, S, Gkoumas, M, Endrizzi, C K, Hagen, M B, Szafraniec, P C, Diemoz, P R T, Munro, K, Ignatyev, B, Johnson, J A, Horrocks, S J, Vinnicombe, J L, Jones, R D, Speller
Publikováno v:
Medical physics. 40(9)
To provide an x-ray phase contrast imaging (XPCI) method working with conventional sources that could be readily translated into clinical practice. XPCI shows potential in synchrotron studies but attempts at translating it for use with conventional s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::679a37fd92743e0e44cd5ba38405041f
https://pubmed.ncbi.nlm.nih.gov/24007133
https://pubmed.ncbi.nlm.nih.gov/24007133
Autor:
Paul J. Sellin, Matthew C. Veale, M.E. Ozsan, H. Al-Barakaty, G. Prekas, J. Parkin, P. Veeramani, Annika Lohstroh, S. Gkoumas, A.W. Davies
Diamond is known for its extreme hardness which may allow it to operate as a particle detector in high fluence environments even after absorption of large radiation doses. We present a study of the deterioration of the charge collection efficiency (C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c511abc93c442a6a72a98e03edf1f0b7
https://surrey.eprints-hosting.org/7672/
https://surrey.eprints-hosting.org/7672/
Autor:
P. Veeramani, Paul J. Sellin, J. Morse, Matthew C. Veale, G. Prekas, S. Gkoumas, J. Parkin, Annika Lohstroh
We have studied the effects of irradiation induced damage on the detector response of a synthetic single crystal diamond radiation detector. Before introducing radiation damage, the spatial variation of the detector response was investigated using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90d22a93d26781a40779f3c01caacd5e
https://surrey.eprints-hosting.org/7673/
https://surrey.eprints-hosting.org/7673/
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