Publications

2003
Young CA, Connors A, Kolaczyk E, McConnell M, Rank G, Ryan JM, Schoenfelder V. Bayesian multiscale deconvolution applied to gamma-ray spectroscopy, in ; 2003 :503–504.
Ryan JM, Donmez B, Macri JR, McClish M, McConnell ML, Miller RS, Widholm M, Hamel L-A, Julien M. Development of CZT strip detector modules for 0.05- to 1-MeV gamma-ray imaging and spectroscopy, in X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy. Vol 4851. ; 2003 :885–894.
McConnell ML, Ledoux J, Macri JR, Ryan JM. Hard x-ray polarimeter for gamma-ray bursts and solar flares, in X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy. Vol 4851. ; 2003 :1382–1393.
McConnell ML, Smith DM, Emslie AG, Lin RP, Ryan JM. Hard x-ray polarimetry with the Ramaty high energy solar spectroscopic imager (RHESSI), in Polarimetry in Astronomy. Vol 4843. ; 2003 :8–19.
McConnell ML, Ledoux J, Macri JR, Ryan JM. Development of a Dedicated Hard X-Ray Polarimeter, in AAS/High Energy Astrophysics Division #7. Vol 35. ; 2003 :643–643.
McConnell ML, Ledoux JR, Macri JR, Ryan JM. The Development of GRAPE, a Gamma Ray Polarimeter Experiment, in Gamma-Ray Burst and Afterglow Astronomy 2001: A Workshop Celebrating the First Year of the HETE Mission. Vol 662. ; 2003 :503–505.
McConnell ML, Smith DM, Emslie AG, Hurford GJ, Lin RP, Ryan JM. Evidence for Hard X-Ray Polarization from the Flare of 23 July 2002, in AAS/Solar Physics Division Meeting #34. Vol 35. ; 2003 :850–850.
McConnell ML, Smith DM, Emslie AG, Hurford GJ, Lin RP, Ryan JM. Measuring Hard X-Ray Polarization of Solar Flares with RHESSI, in AAS/High Energy Astrophysics Division #7. Vol 35. ; 2003 :616–616.
Smith DM, Lin RP, Hurley KC, Coburn W, Hurford GJ, Wigger C, Hajdas W, Zehnder A, McConnell ML. Nonsolar astronomy with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), in X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy. Vol 4851. ; 2003 :1163–1172.
McConnell ML, Connaughton V, Ling JC, Smith DM, Wheaton W, Wilson C. RHESSI as a Monitor of the Hard X-Ray Sky, in AAS/High Energy Astrophysics Division #7. Vol 35. ; 2003 :643–643.
Ryan JM, Desorgher L, Flueckiger EO, Macri JR, McConnell ML, Miller RS. SONTRAC: an imaging spectrometer for solar neutrons, in Innovative Telescopes and Instrumentation for Solar Astrophysics. Vol 4853. ; 2003 :399–410.
Desorgher L, Flückiger EO, Moser MR, Miller RS, Ryan JM, Macri JR, McConnell ML. Estimation of the SONTRAC Detector Efficiency for Solar Flare Neutrons by Geant4 Monte Carlo Simulations. International Cosmic Ray Conference. 2003;6 :3383–3383.
Diehl R, Georgii R, Iyudin A, Lichti G, Kretschmer K, Plüschke S, Schönfelder V, Bloemen H, Hermsen W, Bennett K, et al. Nucleosynthesis Constraints from Gamma-Ray Line Observations. Astronomische Nachrichten Supplement. 2003;324 :76–76.
Macri JR, Wintenberg AL, Widholm M, Jagadish U, Ledoux J, McConnell ML, Frank SS, Cutlip H. Readout of scintillating plastic fibers with an APD array and prototype ASIC. IEEE TRANSACTIONS ON NUCLEAR SCIENCE [Internet]. 2003;50 :928–935. Publisher's Version
Miller RS, Macri JR, McConnell ML, Ryan JM, Fluckiger E, Desorgher L. SONTRAC: An imaging spectrometer for MeV neutrons. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT [Internet]. 2003;505 :36–40. Publisher's Version
2002
McConnell M, Smith D, Emslie A, Lin R, Ryan J. Hard X-ray solar flare polarimetry with RHESSI, in 34th COSPAR Scientific Assembly. Vol 34. ; 2002.
Macri JR, Wintenerg AL, Widholm M, Jagadish U, Ledoux J, McConnell ML, Frank SS, Cutlip HH. A prototype ASIC for APD array readout of scintillating plastic fibers, in Nuclear Science Symposium Conference Record, 2002 IEEE. ; 2002. Publisher's VersionAbstract
We report on the development of custom front-end electronics for use with avalanche photodiode (APD) arrays as part of a NASA technology study for the readout of scintillating plastic fibers. APD arrays featuring 64 1 mm square pixels are used. We demonstrate that a pixel of these APD arrays coupled to relatively thin (0.25 mm) and short (15 cm) scintillating plastic fibers can be used to detect and measure the tracks of even minimum ionizing particles (MIPs). An applicationspecific integrated circuit (ASIC) implementation of the electronics is required to produce a detector sufficiently compact for practical use in a flight experiment featuring many thousands of channels. This paper briefly describes the detector concept and performance and presents the design and performance of a four-channel prototype ASIC fabricated using the 0.35 micron TSMC process.
McConnell M, Ryan J, Zdziarski A, Bennett K, Bloemen H, Hermsen W, Kuiper L, Collmar W, Schoenfelder V, Steinle H, et al. Gamma-Ray Variability of Cygnus X-1, in APS Meeting Abstracts. ; 2002.
McConnell ML, Smith DM, Emslie AG, Lin R, Ryan JM. Hard X-Ray Solar Flare Polarimetry with RHESSI, in American Astronomical Society Meeting Abstracts #200. Vol 34. ; 2002 :758–758.
Ryan JM, Arndt M, Bennett K, Connors A, Debrunner H, Lockwood J, McConnell M, Rank G, Schönfelder V, Suleiman R, et al. High-Energy Measurements of the November 15, 1991 Solar Flare, in Multi-Wavelength Observations of Coronal Structure and Dynamics. ; 2002 :397–397.

Pages