Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Jayson R. Vavrek"'
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:
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
Publikováno v:
Proceedings of the National Academy of Sciences. 113:8618-8623
How does one prove a claim about a highly sensitive object such as a nuclear weapon without revealing information about the object? This paradox has challenged nuclear arms control for more than five decades. We present a mechanism in the form of an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89f8addb165ce79c6edd3e34af529122
https://doi.org/10.1073/pnas.1603916113
https://doi.org/10.1073/pnas.1603916113
Publikováno v:
arXiv
G4NRF is a simulation module for modeling nuclear resonance fluorescence (NRF) interactions in the Geant4 framework. In this work, we validate G4NRF against both absolute and relative measurements of three NRF interactions near 2.2 MeV in $^{238}$U a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc7a4f6c90590716dffbed8198357d8a
http://arxiv.org/abs/1807.02596
http://arxiv.org/abs/1807.02596
Future nuclear arms reduction efforts will require technologies to verify that warheads slated for dismantlement are authentic without revealing any sensitive weapons design information to international inspectors. Despite several decades of research
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbe4e0a651037a37fed290eb51b3822a