Publications

2004
Moser MR, Flückiger EO, Miller RS, Ryan JM, McConnell ML, Macri JR. SONTRAC - An Imaging Spectrometer for MeV Neutrons, in 35th COSPAR Scientific Assembly. Vol 35. ; 2004 :2673–2673.
Tournear DM, Kippen RM, Hoover AS, Boggs S, Wunderer C, Coburn W, Weidenspointner G, Zoglauer A, Aprile E, Curioni A, et al. Background Simulations of Advanced Compton Telescopes for Nuclear Gamma-ray Astronomy, in AAS/High Energy Astrophysics Division #8. Vol 36. ; 2004 :933–933.
Bloser P, McConnell ML, Macri JR, Ryan JM, Case G, Cherry ML, Guzik TG, Schaefer B, Wefel J, Stacy JG, et al. CASTER - A Scintillator-Based Black Hole Finder Probe, in American Astronomical Society Meeting Abstracts. Vol 37. ; 2004 :384–384.
Cherry ML, Case GL, Cravens JP, Guzik TG, Kippen RM, Macri JR, McConnell ML, Miller RS, Paciesas WS, Ryan JM, et al. CASTER: A Scintillator-Based Black Hole Finder Probe, in AAS/High Energy Astrophysics Division #8. Vol 36. ; 2004 :932–932.
McConnell ML, Ledoux J, Macri J, Ryan J. Dedicated polarimeter design for hard x-ray and soft gamma-ray astronomy, in X-Ray and Gamma-Ray Instrumentation for Astronomy XIII. Vol 5165. ; 2004 :334–345.
McConnell ML. Future Prospects for High Energy Polarimetry of Gamma-Ray Bursts, in Gamma-Ray Bursts: 30 Years of Discovery. Vol 727. ; 2004 :589–592.
Paciesas W, Miller RS, Andritschke R, Kanbach G, Zoglauer A, Bloser P, Hunter S, Cravens J, Cherry M, Guzik TG, et al. MEGA: the next generation Medium Energy Gamma-ray Telescope, in AAS/High Energy Astrophysics Division #8. Vol 36. ; 2004 :930–930.
Ryan JM, Andritschke R, Bloser PF, Cravens JP, Cherry ML, Di Cocco G, Guzik TG, Hartmann DH, Hunter SH, Kanbach G, et al. MEGA: the next generation Medium Energy Gamma-ray Telescope, in UV and Gamma-Ray Space Telescope Systems. Vol 5488. ; 2004 :977–988.
McConnell ML, Ryan JM, Smith DM, Emslie AG, Fivian M, Hurford GJ, Lin RP. RHESSI Studies of Solar Flare Hard X-Ray Polarization, in American Astronomical Society Meeting Abstracts #204. Vol 36. ; 2004 :668–668.
Macri JR, Hamel LA, Julien M, Miller RS, Donmez B, McConnell ML, Ryan J, Widholm M. Single-sided CZT strip detectors, in Nuclear Science Symposium Conference Record, 2004 IEEE. ; 2004. Publisher's VersionAbstract
We report progress in the study of thick CZT strip detectors for 3-D imaging and spectroscopy and discuss two approaches to device design. Unlike double-sided strip detectors, these devices feature both row and column contacts implemented on the anode surface. This electron-only approach circumvents problems associated with poor hole transport in CZT that normally limit the thickness and energy range of double-sided strip detectors. The work includes laboratory and simulation studies aimed at developing compact, efficient, detector modules for 0.05 to 1 MeV gamma radiation measurements while minimizing the number and complexity of the electronic readout channels. These devices can achieve similar performance to pixel detectors for both 3-D imaging and spectroscopy. The low channel count approach can significantly reduce the complexity and power requirements of the readout electronics. This is particularly important in applications requiring large area detector arrays. We show two single-sided strip detector concepts. One, previously reported, features rows established with collecting contacts and columns with noncollecting contacts. Another, introduced here, operates on a charge sharing principle and establishes both rows and columns with collecting contacts on the anode surface. In previous work using the earlier strip detector concept we reported simulations and measurements of energy and spatial resolution for prototype 5- and 10-mm-thick CZT detectors. We now present the results of detection efficiency and uniformity measurements conducted on 5-mm-thick detectors using a specific configuration of the front-end electronics and event trigger. We discuss the importance of the detector fabrication processes when implementing this approach.
Macri JR, Dönmez B, Widholm M, Hamel L-A, Julien M, Narita T, Ryan JM, McConnell ML. Single-sided CZT strip detectors, in High-Energy Detectors in Astronomy. Vol 5501. ; 2004 :208–217.
Wunderer CB, Kippen RM, Bloser PF, Boggs SE, McConnell ML, Hoover A, Oberlack U, Sturner S, Tournear D, Weidenspointner G, et al. The ACT Vision Mission Study Simulation Effort, in American Astronomical Society Meeting Abstracts. Vol 37. ; 2004 :372–372.
McConnell ML, Cherry ML, Guzik TG, Kippen RM, Ryan JM, Macri JM, Miller RS, Paciesas WS, Schaefer BE, Stacy JG, et al. CASTER: a scintillator-based black hole finder probe, in UV and Gamma-Ray Space Telescope Systems. Vol 5488. ; 2004 :944–955.
McConnell ML, Kippen RM. The GLEPS Package for Simulating Polarized Gamma Rays with GEANT3, in AAS/High Energy Astrophysics Division #8. Vol 36. ; 2004 :1206–1206.
Ryan JM, Bloser PF, Macri JR, McConnell ML, Ajello M, Andritschke R, Kanbach G, Schoenfelder V, Zoglauer A, Hunter SD, et al. MEGA - Medium Energy Gamma-ray Astronomy Mission, in American Astronomical Society Meeting Abstracts. Vol 37. ; 2004 :372–372.
Bloser PF, Hunter SD, Ryan JM, McConnell ML, Miller RS, Jackson TN, Bai B, Jung S. Applications of gas imaging micro-well detectors to an advanced Compton telescope. NEW ASTRONOMY REVIEWS [Internet]. 2004;48 :299–303. Publisher's Version
McConnell ML, Smith DM, Emslie AG, Hurford GJ, Lin RP, Ryan JM. Hard X-ray solar flare polarimetry with RHESSI. SOLAR VARIABILITY AND CLIMATE CHANGE [Internet]. 2004;34 :462–466. Publisher's Version
Kanbach G, Andritschke R, Schopper F, Schonfelder V, Zoglauer A, Bloser PF, Hunter SD, Ryan JA, McConnell M, Reglero V, et al. The MEGA project. NEW ASTRONOMY REVIEWS [Internet]. 2004;48 :275–280. Publisher's Version
Macri JR, Hamel LA, Julien M, Miller RS, Donmez B, McConnell ML, Ryan JM, Widholm M. Single-sided CZT strip detectors. IEEE TRANSACTIONS ON NUCLEAR SCIENCE [Internet]. 2004;51 :2453–2460. Publisher's Version
McConnell ML, Ryan JM. Status and prospects for polarimetry in high energy astrophysics. NEW ASTRONOMY REVIEWS [Internet]. 2004;48 :215–219. Publisher's Version

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