Zobrazeno 1 - 10
of 127
pro vyhledávání: '"James D. Kurfess"'
Autor:
Gianluigi De Geronimo, W. Neil Johnson, James D. Kurfess, Paul O'Connor, Eric A. Wulf, E.I. Novikova, Bernard F. Phlips
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 579:371-374
A Compton imager design for the detection of Special Nuclear Material (SNM), with specific focus on shielded Highly Enriched Uranium (HEU) is presented. It is based on a large field-of-view Compton gamma-ray imager that uses 24 layers of 2 mm thick,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd3a3b5075bff9c2f500a3a3b0165dd7
https://doi.org/10.1016/j.nima.2007.04.085
https://doi.org/10.1016/j.nima.2007.04.085
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 579:367-370
We have been developing a multi-layer Compton Gamma Ray Imager using position-sensitive, intrinsic silicon detectors. Advantages of this approach include room temperature operation, reduced Doppler broadening, and use of conventional silicon fabricat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71ded7bef19b9c9af999f17141ac2bf5
https://doi.org/10.1016/j.nima.2007.04.077
https://doi.org/10.1016/j.nima.2007.04.077
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 567:323-326
The construction of a prototype Compton imager at the Naval Research Laboratory (NRL) is nearly complete. The instrument is an 8-layer stacked silicon detector and is based on the “3-Compton” energy reconstruction technique. The silicon detectors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80482a289a9b70843140d3ba61d7a0a8
https://doi.org/10.1016/j.nima.2006.05.115
https://doi.org/10.1016/j.nima.2006.05.115
Publikováno v:
ECS Transactions. 3:59-66
Direct wafer bonding of multiple wafers has been performed to demonstrate the utility of thick high resistivity float zone Si substrates for high voltage power devices and radiation detectors such as for X-ray and gamma-ray applications. Low-temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8723115b5d78bd050e80206fa3c057e9
https://doi.org/10.1149/1.2357054
https://doi.org/10.1149/1.2357054
Autor:
James D. Kurfess, Mark L. McConnell, G. DiCocco, Robert Andritschke, Peter F. Bloser, James M. Ryan, Victor Reglero, Marco Ajello, Andreas Zoglauer, John R. Macri, G. Kanbach, Stanley D. Hunter
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 541:310-322
We describe the development and tests of the prototype for a new telescope for Medium Energy Gamma-ray Astronomy (MEGA) in the energy band 0.4–50 MeV. As a successor to COMPTEL and EGRET (at low energies), MEGA aims to improve the sensitivity for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fca5ce4d7a722a2fdd28c1f03d44526
https://doi.org/10.1016/j.nima.2005.01.071
https://doi.org/10.1016/j.nima.2005.01.071
Publikováno v:
IEEE Transactions on Nuclear Science. 51:1997-2003
We present results obtained with double-sided, thick (2 mm) silicon strip detectors used as a Compton imager. Reconstructed images and spectra from /sup 137/Cs and /sup 60/Co gamma-ray sources have been produced at room temperature using the multiple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79ea4c622746aff845b7d9cae8fb5931
https://doi.org/10.1109/tns.2004.835904
https://doi.org/10.1109/tns.2004.835904
Autor:
W. N. Johnson, M. S. Strickman, Richard A. Kroeger, Eric A. Wulf, E.I. Novikova, James D. Kurfess, Bernard F. Phlips
Publikováno v:
New Astronomy Reviews. 48:293-298
The development of high-resolution, position-sensitive solid-state detectors enables γ-ray instruments with improved sensitivity and imaging capabilities. For γ-ray astronomy, an improvement in sensitivity of 20–50 over previous missions is antic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b920d7e2dd080e199d0298dba27b193
https://doi.org/10.1016/j.newar.2003.11.050
https://doi.org/10.1016/j.newar.2003.11.050
Autor:
James D. Kurfess
Publikováno v:
New Astronomy Reviews. 48:177-181
Although remarkable progress has been made in gamma ray astrophysics recently (witness the recent advances in understanding gamma ray bursts) many of the early scientific objectives remain unfulfilled. This is due primarily to the rather modest impro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7c3817ddf70145ad5bd5b5cec325b63
https://doi.org/10.1016/j.newar.2003.11.026
https://doi.org/10.1016/j.newar.2003.11.026
Autor:
Eric A. Wulf, E.I. Novikova, W. N. Johnson, Richard A. Kroeger, Bernard F. Phlips, James D. Kurfess
Publikováno v:
IEEE Transactions on Nuclear Science. 50:1182-1189
Compton telescopes using two germanium strip detectors with depth resolution have been demonstrated at the Naval Research Lab. Depth resolution allows interactions to be located to less than 1 mm, down from 1 cm with no depth resolution, which improv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11d8b49e03c8be522e9a6316a0d3f4fa
https://doi.org/10.1109/tns.2003.815133
https://doi.org/10.1109/tns.2003.815133
Autor:
Richard A. Kroeger, Eric A. Wulf, J. Ampe, Bernard F. Phlips, W. N. Johnson, James D. Kurfess
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:178-182
The ability to measure the interaction depth of a gamma ray in a planar germanium strip detector has been demonstrated using various Constant Fraction Discriminators (CFD) and leading edge discriminators. Thick detectors can then be used in Compton t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fefaeecb5168e17120473c56a888978
https://doi.org/10.1016/s0168-9002(03)01046-5
https://doi.org/10.1016/s0168-9002(03)01046-5