Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Robert T. Skelton"'
Autor:
Edwin A. Stephan, Robert T. Skelton, Fred Duttweiler, Yi Gu, James L. Matteson, Craig S. Levin, Thomas M. Gasaway, Aaron C. Deal
Publikováno v:
Physics in Medicine and Biology. 56:1563-1584
This paper investigates the performance of 1 mm resolution cadmium zinc telluride (CZT) detectors for positron emission tomography (PET) capable of positioning the 3D coordinates of individual 511 keV photon interactions. The detectors comprise 40 mm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aea2f5b334a5751cbf958b456b8e837
https://doi.org/10.1088/0031-9155/56/6/004
https://doi.org/10.1088/0031-9155/56/6/004
Publikováno v:
2008 IEEE Nuclear Science Symposium Conference Record.
Coded mask imaging can produce excellent images in the hard X-ray range from ∼10 to 200 keV, and up to several MeV in the gamma-ray range. Sub-degree resolution is obtained for hard X-rays and a few-degree resolution for gamma-rays. However, these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adcda6997181ac8d641642c052071bd3
https://doi.org/10.1109/nssmic.2008.4775209
https://doi.org/10.1109/nssmic.2008.4775209
Autor:
Craig S. Levin, Robert T. Skelton, Aaron C. Deal, Fred Duttweiler, Yi Gu, James L. Matteson, Edwin A. Stephan, Thomas M. Gasaway
Publikováno v:
2008 IEEE Nuclear Science Symposium Conference Record.
As a part of our teams’ efforts in developing ultra-high resolution PET systems, this paper investigates the performance of 1 mm resolution Cadmium Zinc Telluride (CZT) detectors capable of positioning the 3-D coordinates of individual 511 keV phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4bf0eb285706a5317133fb243456fb0
https://doi.org/10.1109/nssmic.2008.4774098
https://doi.org/10.1109/nssmic.2008.4774098
Autor:
George L. Huszar, Robert T. Skelton, Fredric Duttweiler, Edwin A. Stephan, Craig S. Levin, James L. Matteson, Thomas M. Gasaway, Aaron C. Deal, Yi Gu
Publikováno v:
2008 IEEE Nuclear Science Symposium Conference Record.
Our team is developing the CZT Small Animal PET System, a 1-mm resolution imager for small animal studies. The techniques are also applicable to breast imaging with PET, and Compton imaging for gamma-ray surveillance and threat assessment. CZT detect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bd3e77975381a11c43e550f28d86587
https://doi.org/10.1109/nssmic.2008.4775215
https://doi.org/10.1109/nssmic.2008.4775215
Publikováno v:
2008 IEEE Nuclear Science Symposium Conference Record.
It is desirable to characterize the charge production and transport properties of CZT wafers prior to fabrication into detectors. This allows rejection of undesirable material early in the production cycle as well as acceptance of less-than-perfect m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09beecb200028f9d1c783e33fb697f69
https://doi.org/10.1109/nssmic.2008.4775127
https://doi.org/10.1109/nssmic.2008.4775127
Autor:
James L. Matteson, H. Krawczynski, A. Burger, Robert T. Skelton, I. Jung, Alfred Garson, Michael Groza, J. Perkins
Publikováno v:
IEEE Nuclear Science Symposium Conference Record, 2005.
We explore the possibility to improve the performance of 0.5 cm thick cadmium zinc telluride (CZT) detectors with the help of steering grids on the anode side of the detectors. Steering grids can improve the energy resolution of CZT detectors by enha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b473128818cfe476760c372cb52abe41
https://doi.org/10.1109/nssmic.2005.1596237
https://doi.org/10.1109/nssmic.2005.1596237
Autor:
Martin Clajus, Michael R. Pelling, Satoshi Hayakawa, Robert T. Skelton, Slawomir Suchy, Victoria B. Cajipe, Tumay O. Tumer, James L. Matteson
Publikováno v:
IEEE Nuclear Science Symposium Conference Record, 2005.
Multiple-site interactions initiated by Compton scattering are the primary interaction processes of gamma-rays in CZT in ~0.2 - several MeV range. Thus, exploiting gamma-rays as directional and spectral diagnostic probes requires detectors with 3-D r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a013cf066d3148966376cc299bb1cfdc
https://doi.org/10.1109/nssmic.2005.1596238
https://doi.org/10.1109/nssmic.2005.1596238
Autor:
Arnold Burger, H. Krawczynski, Alfred Garson, James L. Matteson, Robert T. Skelton, I. Jung, Michael Groza
We report here on the optimization of 0.5 cm thick pixelated Orbotech CZT detectors with regards to the best contacting materials and the use of steering grids. We evaluated the performance of different contacting materials. Our study differs from ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7721a459520a86fdbc51e108c99113d3
Autor:
Robert T. Skelton, Michael R. Pelling, M.A. Capote, R. E. Rothschild, G.J. Batinica, Edwin A. Stephan, George L. Huszar, Thomas M. Gasaway, J. L. Matteson
Publikováno v:
2006 IEEE Nuclear Science Symposium Conference Record.
The Government is deploying a growing number of radiation detectors at U.S. borders, ports of entry and other key locations, intended to assist in the detection of a potential terrorist's nuclear explosive device or radiological dispersal device. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb15c15614e03eefd0a9051dc3984395
https://doi.org/10.1109/nssmic.2006.356113
https://doi.org/10.1109/nssmic.2006.356113
Publikováno v:
X-Ray and Gamma-Ray Detectors and Applications IV.
We are developing 10 mm thick CZT detectors with 3-D readout for ~100 keV to ~1.5 MeV gamma-rays. Multiple-site gamma-ray interactions are fully measured, i.e., the energy and 3-D position of each site are determined. Spatial resolution is 1 mm FWHM.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7faf03119f92781fdc84b0611a052ac9
https://doi.org/10.1117/12.455978
https://doi.org/10.1117/12.455978