Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jonathan A. Kulisek"'
Autor:
Richard S. Wittman, Jonathan A. Kulisek, Jonathon D. McCall, T. Stewart, Warnick J. Kernan, Carolyn E. Seifert, Sean C. Stave, John E. Schweppe, Ron J. McConn, Erin A. Miller
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 879:84-91
A three-dimensional look-up library consisting of simulated gamma-ray spectra was developed to leverage, in real-time, the abundance of data provided by a helicopter-mounted gamma-ray detection system consisting of 92 CsI-based radiation sensors and
Autor:
Jonathan A. Kulisek, S.J. Branney, Lindsay C. Todd, Leon E. Smith, Scott Stewart, Benjamin S. McDonald, Heather Ann Nordquist, James R Garner, Martyn T. Swinhoe, Mital A. Zalavadia, Karen A. Miller, Nikhil Deshmukh, Jennifer B. Webster
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 874:127-136
In recent years, the International Atomic Energy Agency (IAEA) has pursued innovative techniques and an integrated suite of safeguards measures to address the verification challenges posed by the front end of the nuclear fuel cycle. Among the unatten
Autor:
Jonathan A. Kulisek, Mital A. Zalavadia, Jennifer B. Webster, Leon E. Smith, Benjamin S. McDonald
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 846:36-42
The International Atomic Energy Agency (IAEA) currently uses handheld gamma-ray spectrometers combined with ultrasonic wall-thickness gauges to verify the declared enrichment of uranium hexafluoride (UF6) cylinders. The current method provides relati
Autor:
Timothy A. White, Sean M. Robinson, Kenneth D. Jarman, Richard A. Wittman, Erin A. Miller, Richard T. Kouzes, Chad Scherrer, Jonathan A. Kulisek
Publikováno v:
IEEE Transactions on Nuclear Science. 62:2234-2244
Detecting shielded special nuclear material (SNM) in a cargo container is a difficult problem, since shielding reduces the amount of radiation escaping the container. Radiography provides information that is complementary to that provided by passive
Autor:
Benjamin S. McDonald, Bonnie Canion, Noah McFerran, Andreas Enqvist, Jonathan A. Kulisek, Jonathan Dreyer, Simon E. Labov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 961:163675
This work aims to characterize features that contribute to the spectral variations that appear in gamma-ray spectra of filled uranium hexafluoride (UF6) cylinders. While the enrichment of the UF6 in a cylinder can greatly affect gamma-ray spectra at
Autor:
Sean C. Stave, Bruce E. Bernacki, Jonathan A. Kulisek, T. Stewart, John E. Schweppe, Warnick J. Kernan, Carolyn E. Seifert, David V. Jordan
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 784:287-292
Helicopter-mounted gamma-ray detectors can provide law enforcement officials the means to quickly and accurately detect, identify, and locate radiological threats over a wide geographical area. The ability to accurately distinguish radiological threa
Autor:
Carolyn E. Seifert, Jonathan A. Kulisek, David M. Pfund, Mitchell J. Myjak, Rebecca S. Detwiler
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 784:339-345
This work discusses the application and optimization of a spectral anomaly method for the real-time detection of gamma radiation sources from an aerial helicopter platform. Aerial detection presents several key challenges over ground-based detection.
Autor:
Glen A. Warren, Adam Weltz, Jonathan A. Kulisek, A. Gavron, Jason Harris, Trevor N. Stewart, Yaron Danon, Kevin K. Anderson
Publikováno v:
Nuclear Science and Engineering. 179:264-273
Improved nondestructive assay of isotopic masses in used nuclear fuel would be valuable for nuclear safeguards operations associated with the transport, storage, and reprocessing of used nuclear fu...
Autor:
Jonathan A. Kulisek, Luke W. Campbell, Kevin K. Anderson, James E. Fast, Kenneth D. Jarman, Douglas C. Rodriguez, Elaina R. Anderson, Robert C. Runkle, Christopher R. Orton, Sean C. Stave
Publikováno v:
Applied Radiation and Isotopes. 82:181-187
The gamma-ray spectrum of spent nuclear fuel in the 3–6 MeV energy range is important for active interrogation since gamma rays emitted from nuclear decay are not expected to interfere with measurements in this energy region. There is, unfortunatel
Publikováno v:
Scopus-Elsevier
The use of a lead slowing-down spectrometer (LSDS) is considered as a possible option for nondestructive assay of fissile material of used nuclear fuel. The primary objective is to quantify fissile...