Search Results - "Luke, P.N"

A prototype High Purity Germanium detector for high resolution gamma-ray spectroscopy at high count rates by Cooper, R.J., Amman, M., Luke, P.N., Vetter, K.

“…Where energy resolution is paramount, High Purity Germanium (HPGe) detectors continue to provide the optimum solution for gamma-ray detection and spectroscopy…”
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Three-dimensional position sensing and field shaping in orthogonal-strip germanium gamma-ray detectors by Amman, M, Luke, P.N

“…We have fabricated a prototype orthogonal-strip germanium detector for gamma-ray imaging studies. With this detector we demonstrate that a gamma-ray…”
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Evaluation of THM-Grown CdZnTe Material for Large-Volume Gamma-Ray Detector Applications by Amman, M., Lee, J.S., Luke, P.N., Chen, H., Awadalla, S.A., Redden, R., Bindley, G.

“…Over 25 1-cm 3 CdZnTe crystals produced using the Traveling Heater Method at Redlen Technologies have been characterized. The charge carrier mobility and…”
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Room-Temperature Replacement for Ge Detectors-Are We There Yet? by Luke, P.N., Amman, M.

“…The search for a semiconductor detector capable of room-temperature operation with similar performance to liquid- nitrogen-cooled Ge detectors has been going…”
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Proximity Charge Sensing With Semiconductor Detectors by Luke, P.N., Tindall, C.S., Amman, M.

“…Semiconductor radiation detectors are routinely used for the detection, imaging, and spectroscopy of gamma-ray, x-ray, and charged particles. In basic form, a…”
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Factors affecting energy resolution of coplanar-grid CdZnTe detectors by Luke, P.N., Amman, M., Lee, J.S.

“…Coplanar-grid CdZnTe detectors have been under development for the past ten years as room-temperature gamma-ray spectrometers and are being produced for use in…”
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Temperature Study of CdZnTe Coplanar-Grid Detectors by Amman, M., Lee, J.S., Luke, P.N.

“…The coplanar-grid (CPG) and other electron-only detection techniques have made possible the use of CdZnTe-based detectors for gamma-ray spectroscopy when high…”
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Overview of the Nuclear Compton Telescope by Bellm, E.C., Boggs, S.E., Bandstra, M.S., Bowen, J.D., Perez-Becker, D., Wunderer, C.B., Zoglauer, A., Amman, M., Luke, P.N., Hsiang-Kuang Chang, Jeng-Lun Chiu, Jau-Shian Liang, Yuan-Hann Chang, Zong-Kai Liu, Wei-Che Hung, Chih-Hsun Lin, Huang, M.A., Jean, P.

“…The Nuclear Compton Telescope (NCT) is a balloon-borne telescope designed to study astrophysical sources of nuclear line emission and polarization at soft…”
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The Data Readout System of the Nuclear Compton Telescope (NCT) by Wei-Che Hung, Yuan-Hann Chang, Chih-Hsun Lin, Boggs, S.E., Hsiang-Kuang Chang, Bandstra, M.S., Bellm, E.C., Jeng-Lun Chiu, Jau-Shian Liang, Zong-Kai Liu, Perez-Becker, D., Wunderer, C.B., Zoglauer, A., Ming-Huey Huang, Amman, M., Luke, P.N.

“…The Nuclear Compton Telescope (NCT) is a balloon-borne telescope based on the 3D-positioning germanium detectors. It is designed to study astrophysical sources…”
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Characterizing and Correcting the Cross-Talk Effect on Depth Measurement in the NCT Detectors by Zong-Kai Liu, Yuan-Hann Chang, Boggs, S.E., Bandstra, M.S., Bellm, E.C., Bowen, J.D., Perez-Becker, D., Wunderer, C.B., Zoglauer, A., Amman, M., Luke, P.N., Hsiang-Kuang Chang, Jeng-Lun Chiu, Jau-Shian Liang, Chih-Hsun Lin, Wei-Che Hung

“…The Nuclear Compton Telescope (NCT) is a balloon-borne soft gamma ray (0.2-10 MeV) telescope designed to study astrophysical sources of nuclear line emission…”
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Performance of CdZnTe coplanar-grid gamma-ray detectors by Luke, P.N., Eissler, E.E.

“…The spectral performance of coplanar grid detectors using currently available CdZnTe materials is examined theoretically and experimentally. Calculated…”
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Large-area Si(Li) orthogonal-strip detectors by Tindall, C.S., Amman, M., Luke, P.N.

“…Segmented lithium drifted silicon detectors are being developed for use in large Compton cameras and for medical imaging. We have successfully fabricated 3.5…”
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Pocket-size CdZnTe gamma-ray spectrometer by Luke, P.N., Amman, M., Lee, J.S., Vu, C.Q.

“…A pocket-size gamma-ray spectrometer has been developed. It uses a large volume (2 cm/sup 3/) CdZnTe coplanar-grid detector to achieve good detection…”
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Noise in CdZnTe detectors by Luke, P.N., Amman, M., Lee, J.S., Manfredi, P.F.

“…Noise in CdZnTe devices with different electrode configurations was investigated. Measurements on devices with guard-ring electrode structures showed that…”
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Germanium orthogonal strip detectors with amorphous-semiconductor contacts by Luke, P.N., Amman, M., Phlips, B.F., Johnson, W.N., Kroeger, R.A.

“…Germanium orthogonal strip detectors have been produced using amorphous-semiconductor contacts. The amorphous-semiconductor contact fabrication process is…”
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CdZnTe material uniformity and coplanar-grid gamma-ray detector performance by Amman, M., Luke, P.N., Lee, J.S.

“…"Electron-only" detection techniques such as the coplanar-grid method are effective in overcoming some of the charge transport problems of CdZnTe and,…”
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Development of germanium strip detectors for environmental remediation by Phlips, B.F., Johnson, W.N., Kroeger, R.A., Kurfess, J.D., Phillips, G., Wulf, E.A., Luke, P.N.

“…We present the initial results of the first germanium strip detector array for the imaging and high-resolution spectroscopy of gamma-ray sources. The array…”
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Noise reduction in CdZnTe coplanar-grid detectors by Luke, P.N., Lee, J.S., Amman, M., Yu, K.M.

“…Noise measurements on CdZnTe detectors show that the main sources of detector-related noise are shot noise due to bulk leakage current and 1/f noise due to the…”
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Amorphous-semiconductor-contact germanium-based detectors for gamma-ray imaging and spectroscopy by Amman, M., Luke, P.N., Boggs, S.E.

“…Germanium-based detectors are the standard technology used for gamma-ray spectroscopy when high efficiency and excellent energy resolution are desired. By…”
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Determining the drift time of charge carriers in p-type point-contact HPGe detectors by Martin, R.D., Amman, M., Chan, Y.D., Detwiler, J.A., Loach, J.C., Looker, Q., Luke, P.N., Poon, A.W.P., Qian, J., Vetter, K., Yaver, H.

“…An algorithm to determine the drift time of charge carriers in p-type point contact (PPC) high-purity germanium (HPGe) detectors from the signals processed…”
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