Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Allen D. Zych"'
Autor:
Allen D. Zych
Publikováno v:
Physics Today.
Autor:
Ulisse Bravar, Andreas Zoglauer, Eric A. Wulf, Stanley D. Hunter, J. P. Cravens, J. G. Stacy, W. S. Paciesas, Mark L. McConnell, Peter F. Bloser, G. Di Cocco, James M. Ryan, Marco Ajello, Michael Cherry, Robert Andritschke, Gottfried Kanbach, R. M. Kippen, Richard Miller, T. G. Guzik, J. P. Wefel, Victor Reglero, John R. Macri, Bernard F. Phlips, Allen D. Zych, Tom Vestrand, Dieter H. Hartmann
Publikováno v:
Chinese Journal of Astronomy and Astrophysics. 6:388-392
The Medium Energy Gamma-ray Astronomy (MEGA) telescope concept will soon be proposed as a MIDEX mission. This mission would enable a sensitive all-sky survey of the medium-energy gamma-ray sky (0.4–50 MeV) and bridge the huge sensitivity gap betwee
Publikováno v:
Astrophysics and Space Science. 297:191-199
Publikováno v:
New Astronomy. 9:127-135
TIGRE, the UCR Compton gamma-ray telescope, is designed to make use of the Compton recoil electron track to improve the flux sensitivity in the medium gamma-ray energy range (0.4-100 MeV). TIGRE uses multilayers of silicon strip detectors to track Co
Publikováno v:
Astronomy & Astrophysics. 404:163-170
It has been suggested that young pulsars, with ages less than a million years, are possible counterparts of some of the Galactic unidentified gamma-ray sources detected by the EGRET instrument on-board the Compton Gamma Ray Observatory. In this work,
Autor:
D. S. Hanna, R. A. Ong, Dipen Bhattacharya, J. Québert, S. M. Oser, Corbin Covault, D. T. Gregorich, D. D. Dixon, O. T. Tumer, Allen D. Zych, D. A. Smith
Publikováno v:
Astroparticle Physics. 5:353-365
The gamma-ray energy region between 20 and 250 GeV is largely unexplored. Ground-based atmospheric Cherenkov detectors offer a possible way to explore this region, but large Cherenkov photon collection areas are needed to achieve low energy threshold
Autor:
O. T. Tumer, Terrence J. O'Neill, G. L. Case, Allen D. Zych, R. S. White, Dipen Bhattacharya, S.C. Blair
Publikováno v:
IEEE Transactions on Nuclear Science. 42:933-939
A small desktop prototype of the Tracking and Imaging Gamma-Ray Experiment (TIGRE) has been assembled and tested at 511 keV and 900 keV. TIGRE was designed to observe cosmic gamma ray sources at energies of 0.3 to 100 MeV. Its major feature is its us
Autor:
D. D. Dixon, C.-J. Liu, G. L. Case, Dipen Bhattacharya, J. Samimi, Terrence J. O'Neill, S.C. Blair, Aysun Akyüz, R. S. White, Allen D. Zych, O. T. Tumer
Publikováno v:
IEEE Transactions on Nuclear Science. 42:907-916
The Tracking and Imaging Gamma-Ray Experiment4 (TIGRE) uses multilayers of silicon strip detectors both as a gamma-ray converter and to track Compton recoil electrons and positron-electron pairs. The direction and energy of the Compton scattered gamm
Autor:
O. T. Tumer, R. S. White, Dipen Bhattacharya, Terrence J. O'Neill, D. D. Dixon, Aysun Akyüz, Allen D. Zych
Publikováno v:
Experimental Astronomy. 6:275-284
The proposed Tracking and Imaging Gamma-Ray Experiment (TIGRE), operating in the 0.3–100 MeV energy interval, will be an efficient polarimeter with a modulation factor of ∼50% at 0.5 MeV. The polarization detection parameters of TIGRE were estima
Publikováno v:
IEEE Transactions on Nuclear Science. 41:1349-1353
An Expectation Maximization Maximum Likelihood method (EMML) introduced by T.J. Hebert has been expanded and used to reconstruct gamma-ray source images. The specific application of this technique to Compton double scatter data is discussed in this p