Publications

1996
Macri JR, Apotovsky BA, Butler JF, Cherry ML, Dann BK, Drake A, Doty FP, Guzik TG, Larson K, Mayer M, et al. Development of an orthogonal-stripe CdZnTe gamma radiation imaging spectrometer. IEEE TRANSACTIONS ON NUCLEAR SCIENCE [Internet]. 1996;43 :1458–1462. Publisher's Version
McNamara BJ, Harrison TE, Ryan J, Kippen RM, McConnell M, Macri J, Kouveliotou C, Fishman GJ, Meegan CA, Green DA, et al. Ground-based gamma-ray burst follow-up efforts: Results of the first two years of the BATSE COMPTEL NMSU rapid response network. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES [Internet]. 1996;103 :173–181. Publisher's Version
Macri JR, Apotovsky BA, Butler JF, Cherry ML, Dann BK, Doty FP, Guzik TG, McConnell ML, Ryan JM. Large-area sub-millimeter resolution CdZnTe strip detector for astronomy. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT [Internet]. 1996;380 :490–492. Publisher's Version
Schönfelder V, Bennett K, Bloemen H, Diehl R, Hermsen W, Lichti G, McConnell M, Ryan J, Strong A, Winkler C. Overview about CGRO-COMPTEL results. \memsai. 1996;67 :143–143.
Buccheri R, Salamone V, Bennett K, Busetta M, Kuiper L, Hermsen W, McConnell M, Much R, Ryan J, Schonfelder V, et al. Search for gamma-ray emission from the Lagrangian points of PSR 1957+20. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;115 :305–309. Publisher's Version
Varendorff M, Forrest D, McConnell M, Ryan J. Application of a neural network simulation to the modelling of the COMPTEL background. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C699–C702. Publisher's Version
Collmar W, Bennett K, Bloemen H, Blom JJ, Hermsen W, Lichti GG, McConnell M, Morris D, Schonfelder V, Stacy JG, et al. COMPTEL observations of the Virgo region. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C515–C518. Publisher's Version
Schonfelder V, Bennett K, Bloemen H, Diehl R, Hermsen W, Lichti G, McConnell M, Ryan J, Strong A, Winkler C. COMPTEL overview: Achievements and expectations. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C13–C21. Publisher's Version
Much R, Harmon BA, Nolan P, Strickman MS, Bennett K, Buccheri R, Diehl R, Fierro JM, Fishman GJ, Grabelsky DA, et al. The Crab total gamma-ray emission as seen by CGRO. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C703–C706. Publisher's Version
Kroeger RA, Strickman MS, Grove JE, Kaaret P, Ford E, Harmon BA, McConnell M. Gamma-ray observations of GRO J1655-40. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C117–C120. Publisher's Version
Kappadath SC, Ryan J, Bennett K, Bloemen H, Forrest D, Hermsen W, Kippen RM, McConnell M, Schonfelder V, van Dijk R, et al. The preliminary cosmic diffuse gamma-ray spectrum from 800 keV to 30 MeV measured with COMPTEL. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C619–C622. Publisher's Version
Stacy JG, Kippen RM, Kappadath SC, McConnell M, Morris D, Miller R, Connors A, Hersh B, Ryan J, Macri J, et al. The response of the CGRO COMPTEL determined from Monte Carlo simulation studies. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C691–C694. Publisher's Version
McConnell M, Bennett K, Bloemen H, Collmar W, van Dijk R, Hermsen W, Much R, Ryan J, Schonfelder V, Steinle H, et al. A search for galactic black hole candidates at MeV energies - Preliminary results. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1996;120 :C149–C152. Publisher's Version
1995
Fletcher SJ, McConnell M, Ryan J, Collmar W, Schönfelder V, Steinle H, Strong A, van Dijk R, Hermsen W, Bennett K, et al. CGRO-COMPTEL all-sky survey at 2.223 MeV, in Bulletin of the American Astronomical Society. Vol 27. ; 1995 :819–819.
Fletcher SJ, McConnell M, Ryan J, Collmar W, Schonfelder V, Steinle H, Strong A, van Dijk R, Hermsen W, Bennett K, et al. CGRO-COMPTEL All-Sky Survey at 2.223 MeV, in American Astronomical Society Meeting Abstracts #186. Vol 27. ; 1995 :819–819.
Suleiman RM, Ryan J, Connors A, McConnell M, Schönfelder V, Rank G, Varendorff M, Bennett K, Winkler C, Hermsen W. COMPTEL Gamma-Ray Spectral Measurements of the 1991 June 9 \amp 11 Solar Flares, in AAS/Solar Physics Division Meeting #26. Vol 27. ; 1995 :987–987.
Kippen RM, Ryan J, Connors A, McConnell M, Winkler C, HANLON LO, Greiner J, Schonfelder V, Varendorff M, Collmar W, et al. COMPTEL Locations and Spectra of Gamma-Ray Bursts, in American Astronomical Society Meeting Abstracts #186. Vol 27. ; 1995 :887–887.
Macri JR, Apotovsky BA, Butler JF, Cherry ML, Dann BK, Drake A, Doty FP, Guzik TG, Larson K, Mayer M, et al. Development of an orthogonal-stripe CdZnTe gamma radiation imaging spectrometer, in Nuclear Science Symposium and Medical Imaging Conference Record, 1995. IEEE. ; 1995. Publisher's VersionAbstract
We report performance measurements of a sub-millimeter resolution CdZnTe strip detector developed as a prototype for astronomical instruments operating with good efficiency in the 30-300 keV photon energy range. The prototype is a 1.4 mm thick, 64×64 contact stripe CdZnTe array of 0.375 mm pitch in both dimensions. Pulse height spectra were recorded in orthogonal-stripe coincidence mode which demonstrate room-temperature energy resolution \textless10 keV (FWHM) for 122 keV photons with a peak-to-valley ratio \textgreater5:1. Good response is also demonstrated at higher energies using a coplanar grid readout configuration. Spatial resolution capabilities finer than the stripe pitch are demonstrated. We present the image of a 133Ba source viewed through a collimator slit produced by a 4×4 stripe detector segment. Charge signals from electron and hole collecting contacts are also discussed.
Ryan JM, Macri JR, McConnell ML, Dann BK, Cherry ML, Guzik TG, Doty FP, Apotovsky BA, Butler JF. Large-area submillimeter resolution CdZnTe strip detector for astronomy, in EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI. Vol 2518. ; 1995 :292–301.
Cherry ML, Altice PP, Chen CX, Guzik TG, Svoboda RC, Macri J, McConnell M, Ryan J, Barakat B, Johnston K. MARGIE – A Balloon-Borne Instrument for High Angular Resolution Hard X-Ray Astronomy, in American Astronomical Society Meeting Abstracts #186. Vol 27. ; 1995 :831–831.

Pages