Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Victor Negut"'
Autor:
Ryotaro Okabe, Shangjie Xue, Jayson R. Vavrek, Jiankai Yu, Ryan Pavlovsky, Victor Negut, Brian J. Quiter, Joshua W. Cates, Tongtong Liu, Benoit Forget, Stefanie Jegelka, Gordon Kohse, Lin-wen Hu, Mingda Li
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Radiation mapping has attracted widespread research attention and increased public concerns on environmental monitoring. Regarding materials and their configurations, radiation detectors have been developed to identify the position and stren
Externí odkaz:
https://doaj.org/article/fc5b1415373949fd88b6ece1d25af13e
Autor:
Daniel Hellfeld, Mark S. Bandstra, Jayson R. Vavrek, Donald L. Gunter, Joseph C. Curtis, Marco Salathe, Ryan Pavlovsky, Victor Negut, Paul J. Barton, Joshua W. Cates, Brian J. Quiter, Reynold J. Cooper, Kai Vetter, Tenzing H. Y. Joshi
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Abstract 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 v
Externí odkaz:
https://doaj.org/article/223ecb5a2caf4cb3b13e04018d25b2a2
Autor:
Joshua W. Cates, John Steele, Jon Balajthy, Victor Negut, Paul Hausladen, Klaus Ziock, Erik Brubaker
Publikováno v:
Sensors, Vol 22, Iss 9, p 3553 (2022)
Neutron double scatter imaging exploits the kinematics of neutron elastic scattering to enable emission imaging of neutron sources. Due to the relatively low coincidence detection efficiency of fast neutrons in organic scintillator arrays, imaging ef
Externí odkaz:
https://doaj.org/article/a762091f42854465a5bac99052911f56
Autor:
Daniel Hellfeld, Paul Barton, Mark S. Bandstra, Victor Negut, Joshua W. Cates, Ryan Pavlovsky, A. Moran, Tenzing H. Y. Joshi, Brian J. Quiter, Jayson R. Vavrek, Kathryn Meehan
Publikováno v:
IEEE Transactions on Nuclear Science, vol 68, iss 11
Using a series of detector measurements taken at different locations to localize a source of radiation is a well-studied problem. The source of radiation is sometimes constrained to a single point-like source, in which case the location of the point
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::632cf4bff5f346a29f0fffb396fc9c06
https://escholarship.org/uc/item/9p38q5qm
https://escholarship.org/uc/item/9p38q5qm
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
Autor:
Reynold J. Cooper, Ryan Pavlovsky, Daniel Hellfeld, Joshua W. Cates, Mark S. Bandstra, Victor Negut, Kathryn Meehan, Tenzing H. Y. Joshi, Jayson R. Vavrek, Brian J. Quiter, William Joe Vanderlip
Publikováno v:
IEEE Transactions on Nuclear Science, vol 67, iss 11
We present an experimental demonstration of Additive Point Source Localization (APSL), a sparse parametric imaging algorithm that reconstructs the 3D positions and activities of multiple gamma-ray point sources. Using a handheld gamma-ray detector ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e426fa8ba9d3607e5fc78c0406409c1b
Autor:
Daniel H. Chivers, Kai Vetter, Joseph C. Curtis, Mark S. Bandstra, Victor Negut, Timothy J. Aucott, Ross E. Meyer
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 789:128-133
The presence of gamma-ray background significantly reduces detection sensitivity when searching for radioactive sources in the field, and the systematic variability in the background will limit the size and energy resolution of systems that can be us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c5a2049aad5419a6f8829f2c47752af
https://doi.org/10.1016/j.nima.2015.04.012
https://doi.org/10.1016/j.nima.2015.04.012
Autor:
Daniel H. Chivers, Joseph C. Curtis, Mark S. Bandstra, Victor Negut, Kai Vetter, Timothy J. Aucott
Publikováno v:
IEEE Transactions on Nuclear Science. 61:985-991
The presence of gamma-ray background significantly reduces detection sensitivity when searching for radioactive sources in the field, particularly in mobile systems which must contend with a variable background that is not known a priori . An extensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::282a9205013f65af1706fc61238cf60a
https://doi.org/10.1109/tns.2014.2306998
https://doi.org/10.1109/tns.2014.2306998
Autor:
Victor Negut, Reynold J. Cooper, Mark S. Bandstra, Kai Vetter, Timothy J. Aucott, Daniel H. Chivers
Publikováno v:
IEEE Transactions on Nuclear Science. 60:1147-1150
In gamma-ray spectroscopy and imaging, the natural gamma-ray background can significantly reduce detection sensitivity, especially when the source is weak and the background varies substantially. This project aims to systematically measure and charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2d98981a934a9632387719baad53d6
https://doi.org/10.1109/tns.2013.2251355
https://doi.org/10.1109/tns.2013.2251355