Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Gilbert G. Fritz"'
Publikováno v:
Journal of Modern Optics. 51:1467-1490
”QVD”detectors are based on thermoelectric heat-to-voltage (Q V) conversion and digital (V D) readout. We have devised and analyzed the performance of QVD detectors with several different sensor designs that enable use of high thermoelectric figu
Autor:
G. Shabad, G. Godfrey, Michael T. Wolff, W. B. Focke, Kent S. Wood, Pablo M. Saz Parkinson, Paul Hertz, Reba M. Bandyopadhyay, E. D. Bloom, Greg Madejski, K. T. Reilly, B. Giebels, Jeffrey D. Scargle, M. N. Lovellette, Daryl J. Yentis, Paul S. Ray, Michael P. Kowalski, Gilbert G. Fritz
Publikováno v:
The Astrophysical Journal. 571:763-770
This paper reports X-ray spectral observations of a relatively nearby z = 0.048 BL Lacertae (BL Lac) object 1ES1959+650, which is a potential TeV emitter. The observations include 31 short pointings made by the Unconventional Stellar Aspect (USA) Exp
Autor:
B. Sanderson, Gilbert G. Fritz, Raymond G. Cruddace, J. E. Spragg, Herbert Gursky, Martin A. Barstow, Michael P. Kowalski, J. L. Culhane, Joseph F. Kordas, J. A. Tandy, William H. Goldstein, Charles M. Brown, Nigel Bannister, George W. Fraser, Troy W. Barbee, Jonathan S. Lapington, Daryl J. Yentis
Publikováno v:
The Astrophysical Journal. 565:L47-L50
We report a high-resolution (R=3000-4000) spectroscopic observation of the DA white dwarf G191-B2B in the extreme ultraviolet band 220-245 A. A low- density ionised He component is clearly present along the line-of-sight, which if completely interste
Autor:
Gilbert G. Fritz, R. M. Bandyopadhyay, W. B. Focke, B. Giebels, G. Godfrey, Paul S. Ray, Kent S. Wood, and D. J. Yentis, K. T. Reilly, Paul Hertz, Michael P. Kowalski, andJeffrey D. Scargle, Elliott D. Bloom, P. M. Saz Parkinson, Michael T. Wolff, M. N. Lovellette, and G. Shabad
Publikováno v:
The Astrophysical Journal. 561:L183-L186
We report on timing and spectral observations of the 2000 outburst of XTE J1550-564 made by the Unconventional Stellar Aspect (USA) experiment on board the Advanced Research and Global Observation Satellite (ARGOS). We observe a low-frequency quasi-p
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:1231-1234
Development of single photon sensors capable of determining the energy ("color") of each photon incident on a pixelated focal plane in real time is a central activity of many groups worldwide developing state-of-the-art hardware for the space astroph
Autor:
G. Shabad, Kent S. Wood, Paul S. Ray, K. T. Reilly, Jeffrey D. Scargle, Gilbert G. Fritz, Daryl J. Yentis, P. M. Saz Parkinson, Michael P. Kowalski, Michael T. Wolff, G. Godfrey, R. M. Bandyopadhyay, Paul Hertz, B. Giebels, M. N. Lovellette, Elliott D. Bloom
Publikováno v:
The Astrophysical Journal. 544:L45-L48
Using the USA Experiment on the Advanced Research and Global Observation Satellite and the Rossi X-Ray Timing Explorer, we have extensively observed the X-ray transient XTE J1118+480 during its recent outburst in 2000 April-June. We present detailed
Autor:
Gilbert G. Fritz, T Jacobs, D. Van Vechten, Kent S. Wood, Armen Gulian, V. R. Nikogosyan, A.L. Gyulamiryan, N. Giordano
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 444:232-236
A novel hot-electron microbolometer concept suitable for hyperspectral imaging at high photon counting rates is described. When each photon is absorbed, its energy is thermalized and homogenized within the normal-metal absorber to provide a highly re
Autor:
V. H. Vartanyan, Kent S. Wood, James S. Horwitz, D. Van Vechten, Gilbert G. Fritz, A.L. Gyulamiryan, Armen S. Kuzanyan, Armen Gulian
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 444:42-45
Transient voltage pulses spontaneously occur in anisotropic films following the absorption of photons. Experiments on normal state YBCO unambiguously confirm that the pulses sensed between the sample ends arise from the thermoelectric response to the
Autor:
Rhonda M. Stroud, S. B. Qadri, Jeffrey M. Pond, Armen S. Kuzanyan, A.L. Gyulamiryan, J. S. Horwitz, Armen Gulian, V.O. Vartanyan, V. R. Nikogosyan, Gilbert G. Fritz, Kent S. Wood, D. Van Vechten, J.B. Thrasher, M. S. Osofsky
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:3194-3197
The inherent properties of naturally layered materials such as the high-temperature superconductors cause a transient voltage when a light pulse is absorbed. The amplitude is proportional to the absorbed energy. Observable pulses arise in the HTS mat
Autor:
Rhonda M. Stroud, V. R. Nikogosyan, Armen Gulian, A.L. Gyulamiryan, Gilbert G. Fritz, James S. Horwitz, Kent S. Wood, S. B. Qadri, J. Kim, Raymond C. Y. Auyeung, D. Van Vechten
Publikováno v:
Physica B: Condensed Matter. :617-620
Transient longitudinal voltage pulses occur in the normal state of thin film samples of high-temperature superconductors following the absorption of light pulses. Our experiments unambiguously confirm that the pulses arise from the thermoelectric res