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Title: Lynx x-ray microcalorimeter

Abstract

Lynx is an x-ray telescope, one of four large satellite mission concepts currently being studied by NASA to be a flagship mission. One of Lynx’s three instruments is an imaging spectrometer called the Lynx x-ray microcalorimeter (LXM), an x-ray microcalorimeter behind an x-ray optic with an angular resolution of 0.5 arc sec and ~2 m 2 of area at 1 keV. The LXM will provide unparalleled diagnostics of distant extended structures and, in particular, will allow the detailed study of the role of cosmic feedback in the evolution of the Universe. We discuss the baseline design of LXM and some parallel approaches for some of the key technologies. The baseline sensor technology uses transition-edge sensors, but we also consider an alternative approach using metallic magnetic calorimeters. We discuss the requirements for the instrument, the pixel layout, and the baseline readout design, which uses microwave superconducting quantum interference devices and high-electron mobility transistor amplifiers and the cryogenic cooling requirements and strategy for meeting these requirements. For each of these technologies, we discuss the current technology readiness level and our strategy for advancing them to be ready for flight. We also describe the current system design, including the block diagram, and ourmore » estimate for the mass, power, and data rate of the instrument.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2];  [3];  [4]
  1. NASA Goddard Space Flight Center, Greenbelt, Maryland
  2. National Institute of Standards and Technology, Boulder, Colorado
  3. Stanford University, Department of Physics, Palo Alto, California
  4. Lawrence Livermore National Laboratory, California
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1560111
Report Number(s):
LLNL-JRNL-763339
Journal ID: ISSN 2329-4124; 953106
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Astronomical Telescopes, Instruments, and Systems
Additional Journal Information:
Journal Volume: 5; Journal Issue: 02; Journal ID: ISSN 2329-4124
Publisher:
SPIE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Bandler, Simon R., Chervenak, James A., Datesman, Aaron M., Devasia, Archana M., DiPirro, Michael, Sakai, Kazuhiro, Smith, Stephen J., Stevenson, Thomas R., Yoon, Wonsik, Bennett, Douglas, Mates, Benjamin, Swetz, Daniel, Ullom, Joel N., Irwin, Kent D., and Eckart, Megan E. Lynx x-ray microcalorimeter. United States: N. p., 2019. Web. doi:10.1117/1.JATIS.5.2.021017.
Bandler, Simon R., Chervenak, James A., Datesman, Aaron M., Devasia, Archana M., DiPirro, Michael, Sakai, Kazuhiro, Smith, Stephen J., Stevenson, Thomas R., Yoon, Wonsik, Bennett, Douglas, Mates, Benjamin, Swetz, Daniel, Ullom, Joel N., Irwin, Kent D., & Eckart, Megan E. Lynx x-ray microcalorimeter. United States. doi:10.1117/1.JATIS.5.2.021017.
Bandler, Simon R., Chervenak, James A., Datesman, Aaron M., Devasia, Archana M., DiPirro, Michael, Sakai, Kazuhiro, Smith, Stephen J., Stevenson, Thomas R., Yoon, Wonsik, Bennett, Douglas, Mates, Benjamin, Swetz, Daniel, Ullom, Joel N., Irwin, Kent D., and Eckart, Megan E. Mon . "Lynx x-ray microcalorimeter". United States. doi:10.1117/1.JATIS.5.2.021017. https://www.osti.gov/servlets/purl/1560111.
@article{osti_1560111,
title = {Lynx x-ray microcalorimeter},
author = {Bandler, Simon R. and Chervenak, James A. and Datesman, Aaron M. and Devasia, Archana M. and DiPirro, Michael and Sakai, Kazuhiro and Smith, Stephen J. and Stevenson, Thomas R. and Yoon, Wonsik and Bennett, Douglas and Mates, Benjamin and Swetz, Daniel and Ullom, Joel N. and Irwin, Kent D. and Eckart, Megan E.},
abstractNote = {Lynx is an x-ray telescope, one of four large satellite mission concepts currently being studied by NASA to be a flagship mission. One of Lynx’s three instruments is an imaging spectrometer called the Lynx x-ray microcalorimeter (LXM), an x-ray microcalorimeter behind an x-ray optic with an angular resolution of 0.5 arc sec and ~2 m2 of area at 1 keV. The LXM will provide unparalleled diagnostics of distant extended structures and, in particular, will allow the detailed study of the role of cosmic feedback in the evolution of the Universe. We discuss the baseline design of LXM and some parallel approaches for some of the key technologies. The baseline sensor technology uses transition-edge sensors, but we also consider an alternative approach using metallic magnetic calorimeters. We discuss the requirements for the instrument, the pixel layout, and the baseline readout design, which uses microwave superconducting quantum interference devices and high-electron mobility transistor amplifiers and the cryogenic cooling requirements and strategy for meeting these requirements. For each of these technologies, we discuss the current technology readiness level and our strategy for advancing them to be ready for flight. We also describe the current system design, including the block diagram, and our estimate for the mass, power, and data rate of the instrument.},
doi = {10.1117/1.JATIS.5.2.021017},
journal = {Journal of Astronomical Telescopes, Instruments, and Systems},
number = 02,
volume = 5,
place = {United States},
year = {2019},
month = {4}
}

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Figures / Tables:

Fig 1 Fig 1: This image shows the baseline layout of the LXM focal plane array. It consists of three different styles of pixels in three different regions. The Main Array consists of 1 arc-second pixels over a 5 arc-minute field-of-view with a 7 keV energy range, and the Enhanced Main Arraymore » 0.5 arc-second pixels in the innermost central 1 arc-minute region. Off to one side is the Ultra-Hi-Res Array consisting of 1 arc-minute pixels over a separate 1 arc-minute region, optimized for high energy resolution below 1 keV, but will still have high energy resolution up to 2 keV.« less

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