Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Donald Gunter"'
Publikováno v:
IEEE Transactions on Nuclear Science. 69:2343-2359
Autor:
D. Hellfeld, Donald Gunter, K. Knecht, A. Moran, Kai Vetter, Tenzing H. Y. Joshi, J. Hecla, V. Negut, R. Pavlovsky, Andrew Haefner
Publikováno v:
IEEE Transactions on Nuclear Science, vol 68, iss 10
The Polaris-LAMP multi-modal 3-D gamma-ray imager is a radiation mapping and imaging platform which uses a commercial off-the-shelf (COTS) detector integrated with a contextual sensor localization and mapping platform. The integration of these system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e8e5ea51e1b89044fd13c839d5c7a7e
https://escholarship.org/uc/item/45r822p9
https://escholarship.org/uc/item/45r822p9
Publikováno v:
IEEE Transactions on Nuclear Science, vol 66, iss 10
The ability to localize and map the distribution of gamma-ray emitting radionuclides in 3D has applications ranging from medical imaging to nuclear security. In the case of radiological source search and nuclear contamination remediation, the deploym
Autor:
Joshua W. Cates, Kai Vetter, D. Hellfeld, M. Salathe, Victor Negut, Mark S. Bandstra, Reynold J. Cooper, Brian J. Quiter, Jayson R. Vavrek, Paul Barton, Ryan Pavlovsky, Joseph C. Curtis, Tenzing H. Y. Joshi, Donald Gunter
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Scientific Reports
Scientific reports, vol 11, iss 1
Scientific Reports
Scientific reports, vol 11, iss 1
The ability to map and estimate the activity of radiological source distributions in unknown three-dimensional environments has applications in the prevention and response to radiological accidents or threats as well as the enforcement and verificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::298961f6d17bcfd02009defcac749a36
Publikováno v:
IEEE Transactions on Nuclear Science, vol 64, iss 11
Gamma-ray imaging facilitates the efficient detection, characterization, and localization of compact radioactive sources in cluttered environments. Fieldable detector systems employing active planar coded apertures have demonstrated broad energy sens
Publikováno v:
IEEE Transactions on Nuclear Science. 62:1911-1917
Compton imaging is a gamma-ray imaging technique useful for photons with energies in the range of a hundred keV to several MeV. Measuring gamma rays with a Compton camera results in cone data that needs to be mathematically inverted to determine the
Publikováno v:
2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
The integration of gamma-ray imaging and visual scene data in 3D has been shown to improve radioactive source localization and mapping capabilities. Contextual sensors such as visual cameras and light detection and ranging units are used with Simulta
Publikováno v:
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD).
Gamma-ray imaging allows for efficient detection, characterization, and localization of compact radioactive sources in cluttered environments. Fieldable detector systems employing active planar coded masks demonstrate broad energy sensitivity via bot
Publikováno v:
2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
When evaluating detectors and algorithms for nuclear threat detection in populated environments, introducing actual sources is usually neither feasible nor economical. It is more practical to move the detector, (which is either airborne, vehicle-born
Publikováno v:
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC).
We present a feasibility study of real-time radioactive source localization in which the effects of low count rates on source localizations with a moving coded-aperture detector system are addressed. The conventional crosscorrelation method with the