Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array

Goro Sato, Tadayuki Takahashi, Kazuhiro Nakazawa, Shin Watanabe, Makoto Tashiro, Masaya Suzuki, Yuu Okada, Hiromitsu Takahashi, Ann Parsons, Jack Tueller, Hans Krimn, Scott Barthelmy, Jay Cummings, Craig Markwardt, Derek Hullinger, Neil Gehrels, Ed Fenimore, David Palmer, Tony Dean, Dave Willis

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

The properties of 32k CdZnTe detectors have been studied in the pre-flight calibration of Burst Alert Telescope (BAT) on-board the Swift Gamma-ray Burst Explorer (scheduled for launch in January 2004). After corrections of the linearity and the gain, the energy resolution of summed spectrum is 7.0 keV (FWHM) at 122 keV. In order to construct response matrices for the BAT instrument, we extracted mobility-lifetime (μτ) products for electrons and holes in the CdZnTe. Based on a new method applied to 57Co spectra taken at different bias voltages, μτ for electrons ranges from 5.0×10-4 to 1.0×10-2cm2V -1, while μτ for holes ranges from 1.0 × 10-5 to 1.7 × 10-4cm2V-1. We show that the distortion of the spectrum and the peak efficiency of the BAT instrument are well reproduced by the μτ database constructed in the calibration.

Original languageEnglish
Pages (from-to)209-216
Number of pages8
JournalUnknown Journal
Volume5198
Publication statusPublished - 2004

Fingerprint

Telescopes
bursts
telescopes
Detectors
detectors
Calibration
Electrons
Bias voltage
Full width at half maximum
gamma ray bursts
Gamma rays
linearity
electrons
flight
life (durability)
electric potential
products
matrices
energy

Keywords

  • μτ products
  • BAT
  • CdZnTe
  • Lifetime
  • Mobility
  • Swift

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Sato, G., Takahashi, T., Nakazawa, K., Watanabe, S., Tashiro, M., Suzuki, M., ... Willis, D. (2004). Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array. Unknown Journal, 5198, 209-216.

Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array. / Sato, Goro; Takahashi, Tadayuki; Nakazawa, Kazuhiro; Watanabe, Shin; Tashiro, Makoto; Suzuki, Masaya; Okada, Yuu; Takahashi, Hiromitsu; Parsons, Ann; Tueller, Jack; Krimn, Hans; Barthelmy, Scott; Cummings, Jay; Markwardt, Craig; Hullinger, Derek; Gehrels, Neil; Fenimore, Ed; Palmer, David; Dean, Tony; Willis, Dave.

In: Unknown Journal, Vol. 5198, 2004, p. 209-216.

Research output: Contribution to journal › Article

Sato, G, Takahashi, T, Nakazawa, K, Watanabe, S, Tashiro, M, Suzuki, M, Okada, Y, Takahashi, H, Parsons, A, Tueller, J, Krimn, H, Barthelmy, S, Cummings, J, Markwardt, C, Hullinger, D, Gehrels, N, Fenimore, E, Palmer, D, Dean, T & Willis, D 2004, 'Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array', Unknown Journal, vol. 5198, pp. 209-216.
Sato G, Takahashi T, Nakazawa K, Watanabe S, Tashiro M, Suzuki M et al. Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array. Unknown Journal. 2004;5198:209-216.
Sato, Goro ; Takahashi, Tadayuki ; Nakazawa, Kazuhiro ; Watanabe, Shin ; Tashiro, Makoto ; Suzuki, Masaya ; Okada, Yuu ; Takahashi, Hiromitsu ; Parsons, Ann ; Tueller, Jack ; Krimn, Hans ; Barthelmy, Scott ; Cummings, Jay ; Markwardt, Craig ; Hullinger, Derek ; Gehrels, Neil ; Fenimore, Ed ; Palmer, David ; Dean, Tony ; Willis, Dave. / Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array. In: Unknown Journal. 2004 ; Vol. 5198. pp. 209-216.
@article{103d1c41d77b435abb5859fbd87cd90c,
title = "Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array",
abstract = "The properties of 32k CdZnTe detectors have been studied in the pre-flight calibration of Burst Alert Telescope (BAT) on-board the Swift Gamma-ray Burst Explorer (scheduled for launch in January 2004). After corrections of the linearity and the gain, the energy resolution of summed spectrum is 7.0 keV (FWHM) at 122 keV. In order to construct response matrices for the BAT instrument, we extracted mobility-lifetime (μτ) products for electrons and holes in the CdZnTe. Based on a new method applied to 57Co spectra taken at different bias voltages, μτ for electrons ranges from 5.0×10-4 to 1.0×10-2cm2V -1, while μτ for holes ranges from 1.0 × 10-5 to 1.7 × 10-4cm2V-1. We show that the distortion of the spectrum and the peak efficiency of the BAT instrument are well reproduced by the μτ database constructed in the calibration.",
keywords = "μτ products, BAT, CdZnTe, Lifetime, Mobility, Swift",
author = "Goro Sato and Tadayuki Takahashi and Kazuhiro Nakazawa and Shin Watanabe and Makoto Tashiro and Masaya Suzuki and Yuu Okada and Hiromitsu Takahashi and Ann Parsons and Jack Tueller and Hans Krimn and Scott Barthelmy and Jay Cummings and Craig Markwardt and Derek Hullinger and Neil Gehrels and Ed Fenimore and David Palmer and Tony Dean and Dave Willis",
year = "2004",
language = "English",
volume = "5198",
pages = "209--216",
journal = "Nuclear Physics A",
issn = "0375-9474",
publisher = "Elsevier",

}

TY - JOUR

T1 - Properties of CdZnTe detectors in the Burst Alert Telescope (BAT) Array

AU - Sato, Goro

AU - Takahashi, Tadayuki

AU - Nakazawa, Kazuhiro

AU - Watanabe, Shin

AU - Tashiro, Makoto

AU - Suzuki, Masaya

AU - Okada, Yuu

AU - Takahashi, Hiromitsu

AU - Parsons, Ann

AU - Tueller, Jack

AU - Krimn, Hans

AU - Barthelmy, Scott

AU - Cummings, Jay

AU - Markwardt, Craig

AU - Hullinger, Derek

AU - Gehrels, Neil

AU - Fenimore, Ed

AU - Palmer, David

AU - Dean, Tony

AU - Willis, Dave

PY - 2004

Y1 - 2004

N2 - The properties of 32k CdZnTe detectors have been studied in the pre-flight calibration of Burst Alert Telescope (BAT) on-board the Swift Gamma-ray Burst Explorer (scheduled for launch in January 2004). After corrections of the linearity and the gain, the energy resolution of summed spectrum is 7.0 keV (FWHM) at 122 keV. In order to construct response matrices for the BAT instrument, we extracted mobility-lifetime (μτ) products for electrons and holes in the CdZnTe. Based on a new method applied to 57Co spectra taken at different bias voltages, μτ for electrons ranges from 5.0×10-4 to 1.0×10-2cm2V -1, while μτ for holes ranges from 1.0 × 10-5 to 1.7 × 10-4cm2V-1. We show that the distortion of the spectrum and the peak efficiency of the BAT instrument are well reproduced by the μτ database constructed in the calibration.

AB - The properties of 32k CdZnTe detectors have been studied in the pre-flight calibration of Burst Alert Telescope (BAT) on-board the Swift Gamma-ray Burst Explorer (scheduled for launch in January 2004). After corrections of the linearity and the gain, the energy resolution of summed spectrum is 7.0 keV (FWHM) at 122 keV. In order to construct response matrices for the BAT instrument, we extracted mobility-lifetime (μτ) products for electrons and holes in the CdZnTe. Based on a new method applied to 57Co spectra taken at different bias voltages, μτ for electrons ranges from 5.0×10-4 to 1.0×10-2cm2V -1, while μτ for holes ranges from 1.0 × 10-5 to 1.7 × 10-4cm2V-1. We show that the distortion of the spectrum and the peak efficiency of the BAT instrument are well reproduced by the μτ database constructed in the calibration.

KW - μτ products

KW - BAT

KW - CdZnTe

KW - Lifetime

KW - Mobility

KW - Swift

UR - http://www.scopus.com/inward/record.url?scp=11144357264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11144357264&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:11144357264

VL - 5198

SP - 209

EP - 216

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

ER -

Access to Document