The Development of a Segmented N-Type Germanium Detector, and Its Application to Astronomical Gamma-Ray Spectroscopy

Gehrels, N.; Cline, T. L.; Teegarden, B. J.; Tueller, J.; Leventhal, M.; MacCallum, C. J.; Hewka, P. V.; Ryge, P.

doi:10.1109/tns.1984.4333265

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…In this paper we present a detailed study of the continuum background in high-resolution Ge spectrometers and discuss techniques for its reduction. Preliminary results from this study have been given by Paciesas et al [1] and Gehrels et al [13].…”

supporting

confidence: 53%

Instrumental background in balloon-borne gamma-ray spectrometers and techniques for its reduction

Gehrels

1985

Nuclear Instruments and Methods in Physics Research Section A:

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100

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supporting

confidence: 53%

Instrumental background in balloon-borne gamma-ray spectrometers and techniques for its reduction

Gehrels

1985

Nuclear Instruments and Methods in Physics Research Section A:

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100

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“…The curve which is higher in the region above -1 MeV in each case is obtained assuming a model 8+ background component (Naya et al 1995b). The lower curve is that calculated without considering p+production in the Ge detectorsa backgroundcomponent that has never been included in previous studies (Gehrels, 1992; INTEGRAL Phase-A report). These two cases represent optimistic and pessimistic extremesthe real case will lie in the band they define.…”

Section: Annals New York Academy Of Sciencesmentioning

confidence: 98%

Gamma‐Ray Line Spectroscopy with INTEGRAL

Ballmoos

Dean

Winkler

1995

Annals of the New York Academy of Sciences

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“…For our simulations, we assumed SAA passages occur every 6 hours for 10 minutes. Finally, the cosmic electron flux from Gehrels (1985) was included with a low-energy cutoff at 2.5 GeV. Total Background (prompt+delayed) before and after applying a shield-veto whenever an event deposits >100 keV in any one of the shields (fully active configuration).…”

Section: Background Input Spectramentioning

confidence: 99%

CZT in space-based hard x-ray astronomy: background predictions for EXIST

et al. 2006

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One of the key aspects of a detector material for space-borne hard X-ray and gamma-ray telescopes is the rate of prompt and delayed background events generated inside the material by charged and neutral particles striking the detector. These particles are Cosmic Rays, particles trapped in Earth's magnetic field, and secondaries from Cosmic Ray interacting with the atmosphere and the spacecraft. Here, we present a preliminary study of Cadmium Zinc Telluride (CZT) and its behaviour in space environments. We have used the simulation package MGGPOD to estimate the background of the CZT detectors in the proposed Energetic X-ray Imaging Survey Telescope (EXIST ) for possible orbital parameters. The EXIST mission will make use of ∼6 m 2 of >0.5 cm thick CZT detectors to record cosmic X-rays in the energy range from 10 keV to 600 keV. The detectors will be shielded by a fully or partly active shield. For the specific detector and shielding geometry considered here and an orbit with a low (7 • ) inclination, the background rate is dominated by diffuse extragalactic photons below ∼200 keV. Prompt and delayed hadronic backgrounds grow increasingly important above this energy, becoming the main contributors to the total background above ∼1 MeV. A fully active shield performs slightly better than a half active/half passive shield.

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The Development of a Segmented N-Type Germanium Detector, and Its Application to Astronomical Gamma-Ray Spectroscopy

Cited by 8 publications

References 9 publications

Instrumental background in balloon-borne gamma-ray spectrometers and techniques for its reduction

Instrumental background in balloon-borne gamma-ray spectrometers and techniques for its reduction

Gamma‐Ray Line Spectroscopy with INTEGRAL

CZT in space-based hard x-ray astronomy: background predictions for EXIST

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