Optical instrument design of the high-energy x-ray probe (HEX-P)

Kristin K. Madsen*, Fiona Harrison, D. Broadway, F. E. Christensen, M. Descalle, D. Ferreira, B. Grefenstette, D. Gurgew, A. Hornschemeier, H. Miyasaka, T. Okajima, S. Pike, M. Pivovaroff, T. Saha, D. Stern, J. Vogel, D. Windt, W. Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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The High-Energy X-ray Probe (HEX-P) is a probe-class next-generation high-energy X-ray mission concept that will vastly extend the reach of broadband X-ray observations. Studying the 2-200 keV energy range, HEXP has 40 times the sensitivity of any previous mission in the 10-80 keV band, and will be the first focusing instrument in the 80-200 keV band. A successor to the Nuclear Spectroscopic Telescope Array (NuSTAR), a NASA Small Explorer launched in 2012, HEX-P addresses key NASA science objectives, and will serve as an important complement to ESA's L-class Athena mission. HEX-P will utilize multilayer coated X-ray optics, and in this paper we present the details of the optical design, and discuss the multilayer prescriptions necessary for the reflection of hard X-ray photons. We consider multiple module designs with the aim of investigating the tradeoff between high- and low-energy effective area, and review the technology development necessary to reach that goal within the next decade.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
EditorsJan-Willem A. den Herder, Shouleh Nikzad, Kazuhiro Nakazawa
Number of pages10
PublisherSPIE - International Society for Optical Engineering
Publication date2018
Article number106996M
ISBN (Print)9781510619517
Publication statusPublished - 2018
EventSPIE Astronomical Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray - Austin, United States
Duration: 10 Jun 201815 Jun 2018


ConferenceSPIE Astronomical Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
Country/TerritoryUnited States
Sponsor4D Technology Corporation, Andor Technology, Ltd., Astronomical Consultants and Equipment, Inc., Giant Magellan Telescope, SPIE


  • HEX-P
  • Satellite
  • X-ray


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