Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector

Caroline A. Kilbourne, Joseph S. Adams, Regis P. Brekosky, James A. Chervenak, Meng P. Chiao, Megan E. Eckart, Enectali Figueroa-Feliciano, Massimiliano Galeazzi, Christoph Grein, Christine A. Jhabvala, Daniel Kelly, Maurice A. Leutenegger, Dan McCammon, F. Scott Porter, Andrew E. Szymkowiak, Tomomi Watanabe, Jun Zhao

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The calorimeter array of the JAXA Astro-H (renamed Hitomi) soft x-ray spectrometer (SXS) was designed to provide unprecedented spectral resolution of spatially extended cosmic x-ray sources and of all cosmic x-ray sources in the Fe-K band around 6 keV, enabling essential plasma diagnostics. The SXS had a square array of 36 x-ray calorimeters at the focal plane. These calorimeters consisted of ion-implanted silicon thermistors and HgTe thermalizing x-ray absorbers. These devices demonstrated a resolution of better than 4.5 eV at 6 keV when operated at a heat-sink temperature of 50 mK. We will discuss the basic physical parameters of this array, including the array layout, thermal conductance of the link to the heat sink, resistance function, absorber details, and means of attaching the absorber to the thermistor-bearing element. We will also present the thermal characterization of the whole array, including thermal conductance and crosstalk measurements and the results of pulsing the frame temperature via alpha particles, heat pulses, and the environmental background. A silicon ionization detector was located behind the calorimeter array and served to reject events due to cosmic rays. We will briefly describe this anticoincidence detector and its performance.

Original languageEnglish (US)
Article number011214
JournalJournal of Astronomical Telescopes, Instruments, and Systems
Volume4
Issue number1
DOIs
StatePublished - Jan 1 2018

Fingerprint

anticoincidence detectors
x ray spectrometers
Calorimeters
calorimeters
Spectrometers
spectrometer
Detectors
X rays
cosmic x rays
detectors
absorbers
Thermistors
thermistors
x ray sources
heat sinks
Heat sinks
Silicon
silicon
Bearings (structural)
Plasma diagnostics

Keywords

  • anticoincidence detector
  • Astro-H
  • Hitomi
  • microcalorimeter
  • x-ray calorimeter
  • x-ray spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Instrumentation
  • Astronomy and Astrophysics
  • Mechanical Engineering
  • Space and Planetary Science

Cite this

Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector. / Kilbourne, Caroline A.; Adams, Joseph S.; Brekosky, Regis P.; Chervenak, James A.; Chiao, Meng P.; Eckart, Megan E.; Figueroa-Feliciano, Enectali; Galeazzi, Massimiliano; Grein, Christoph; Jhabvala, Christine A.; Kelly, Daniel; Leutenegger, Maurice A.; McCammon, Dan; Scott Porter, F.; Szymkowiak, Andrew E.; Watanabe, Tomomi; Zhao, Jun.

In: Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 4, No. 1, 011214, 01.01.2018.

Research output: Contribution to journalArticle

Kilbourne, CA, Adams, JS, Brekosky, RP, Chervenak, JA, Chiao, MP, Eckart, ME, Figueroa-Feliciano, E, Galeazzi, M, Grein, C, Jhabvala, CA, Kelly, D, Leutenegger, MA, McCammon, D, Scott Porter, F, Szymkowiak, AE, Watanabe, T & Zhao, J 2018, 'Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector', Journal of Astronomical Telescopes, Instruments, and Systems, vol. 4, no. 1, 011214. https://doi.org/10.1117/1.JATIS.4.1.011214
Kilbourne, Caroline A. ; Adams, Joseph S. ; Brekosky, Regis P. ; Chervenak, James A. ; Chiao, Meng P. ; Eckart, Megan E. ; Figueroa-Feliciano, Enectali ; Galeazzi, Massimiliano ; Grein, Christoph ; Jhabvala, Christine A. ; Kelly, Daniel ; Leutenegger, Maurice A. ; McCammon, Dan ; Scott Porter, F. ; Szymkowiak, Andrew E. ; Watanabe, Tomomi ; Zhao, Jun. / Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector. In: Journal of Astronomical Telescopes, Instruments, and Systems. 2018 ; Vol. 4, No. 1.
@article{f706810e46034f929ba08fc70aa41a36,
title = "Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector",
abstract = "The calorimeter array of the JAXA Astro-H (renamed Hitomi) soft x-ray spectrometer (SXS) was designed to provide unprecedented spectral resolution of spatially extended cosmic x-ray sources and of all cosmic x-ray sources in the Fe-K band around 6 keV, enabling essential plasma diagnostics. The SXS had a square array of 36 x-ray calorimeters at the focal plane. These calorimeters consisted of ion-implanted silicon thermistors and HgTe thermalizing x-ray absorbers. These devices demonstrated a resolution of better than 4.5 eV at 6 keV when operated at a heat-sink temperature of 50 mK. We will discuss the basic physical parameters of this array, including the array layout, thermal conductance of the link to the heat sink, resistance function, absorber details, and means of attaching the absorber to the thermistor-bearing element. We will also present the thermal characterization of the whole array, including thermal conductance and crosstalk measurements and the results of pulsing the frame temperature via alpha particles, heat pulses, and the environmental background. A silicon ionization detector was located behind the calorimeter array and served to reject events due to cosmic rays. We will briefly describe this anticoincidence detector and its performance.",
keywords = "anticoincidence detector, Astro-H, Hitomi, microcalorimeter, x-ray calorimeter, x-ray spectroscopy",
author = "Kilbourne, {Caroline A.} and Adams, {Joseph S.} and Brekosky, {Regis P.} and Chervenak, {James A.} and Chiao, {Meng P.} and Eckart, {Megan E.} and Enectali Figueroa-Feliciano and Massimiliano Galeazzi and Christoph Grein and Jhabvala, {Christine A.} and Daniel Kelly and Leutenegger, {Maurice A.} and Dan McCammon and {Scott Porter}, F. and Szymkowiak, {Andrew E.} and Tomomi Watanabe and Jun Zhao",
year = "2018",
month = "1",
day = "1",
doi = "10.1117/1.JATIS.4.1.011214",
language = "English (US)",
volume = "4",
journal = "Journal of Astronomical Telescopes, Instruments, and Systems",
issn = "2329-4124",
publisher = "SPIE",
number = "1",

}

TY - JOUR

T1 - Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector

AU - Kilbourne, Caroline A.

AU - Adams, Joseph S.

AU - Brekosky, Regis P.

AU - Chervenak, James A.

AU - Chiao, Meng P.

AU - Eckart, Megan E.

AU - Figueroa-Feliciano, Enectali

AU - Galeazzi, Massimiliano

AU - Grein, Christoph

AU - Jhabvala, Christine A.

AU - Kelly, Daniel

AU - Leutenegger, Maurice A.

AU - McCammon, Dan

AU - Scott Porter, F.

AU - Szymkowiak, Andrew E.

AU - Watanabe, Tomomi

AU - Zhao, Jun

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The calorimeter array of the JAXA Astro-H (renamed Hitomi) soft x-ray spectrometer (SXS) was designed to provide unprecedented spectral resolution of spatially extended cosmic x-ray sources and of all cosmic x-ray sources in the Fe-K band around 6 keV, enabling essential plasma diagnostics. The SXS had a square array of 36 x-ray calorimeters at the focal plane. These calorimeters consisted of ion-implanted silicon thermistors and HgTe thermalizing x-ray absorbers. These devices demonstrated a resolution of better than 4.5 eV at 6 keV when operated at a heat-sink temperature of 50 mK. We will discuss the basic physical parameters of this array, including the array layout, thermal conductance of the link to the heat sink, resistance function, absorber details, and means of attaching the absorber to the thermistor-bearing element. We will also present the thermal characterization of the whole array, including thermal conductance and crosstalk measurements and the results of pulsing the frame temperature via alpha particles, heat pulses, and the environmental background. A silicon ionization detector was located behind the calorimeter array and served to reject events due to cosmic rays. We will briefly describe this anticoincidence detector and its performance.

AB - The calorimeter array of the JAXA Astro-H (renamed Hitomi) soft x-ray spectrometer (SXS) was designed to provide unprecedented spectral resolution of spatially extended cosmic x-ray sources and of all cosmic x-ray sources in the Fe-K band around 6 keV, enabling essential plasma diagnostics. The SXS had a square array of 36 x-ray calorimeters at the focal plane. These calorimeters consisted of ion-implanted silicon thermistors and HgTe thermalizing x-ray absorbers. These devices demonstrated a resolution of better than 4.5 eV at 6 keV when operated at a heat-sink temperature of 50 mK. We will discuss the basic physical parameters of this array, including the array layout, thermal conductance of the link to the heat sink, resistance function, absorber details, and means of attaching the absorber to the thermistor-bearing element. We will also present the thermal characterization of the whole array, including thermal conductance and crosstalk measurements and the results of pulsing the frame temperature via alpha particles, heat pulses, and the environmental background. A silicon ionization detector was located behind the calorimeter array and served to reject events due to cosmic rays. We will briefly describe this anticoincidence detector and its performance.

KW - anticoincidence detector

KW - Astro-H

KW - Hitomi

KW - microcalorimeter

KW - x-ray calorimeter

KW - x-ray spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85042594819&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042594819&partnerID=8YFLogxK

U2 - 10.1117/1.JATIS.4.1.011214

DO - 10.1117/1.JATIS.4.1.011214

M3 - Article

AN - SCOPUS:85042594819

VL - 4

JO - Journal of Astronomical Telescopes, Instruments, and Systems

JF - Journal of Astronomical Telescopes, Instruments, and Systems

SN - 2329-4124

IS - 1

M1 - 011214

ER -