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Proceedings Paper

Concept study x-ray testing for NICER's x-ray concentrators
Author(s): Erin Balsamo; Keith Gendreau; Zaven Arzoumanian; Takashi Okajima; Lalit Jalota; Yang Soong; Peter Serlemitsos; Teruaki Enoto; Bhalvinder Gulati; Steven Kenyon; Devin Hahne; David Fickau; Nicholas Spartana; Steve Lentine; Ceili Burdhimo; Billy Barrios; Lisa Wu
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Paper Abstract

We performed a series of measurements using X-rays to assess the current performance of the Neutron star Interior Composition ExploreR (NICER) X-ray concentrators during the mission's concept study stage. NICER will use 56 grazing-incidence X-ray concentrators in the optical system with each module focusing the incoming photons to co-aligned silicon drift detectors with 2 mm apertures. Successful X-ray timing and navigation studies require optimal signal to noise, thus by optimizing high throughput concentrators with a large collecting area we can minimize the PSF and reduce the detector aperture size, reducing background. The performance measurements were conducted in a 600 meter X-ray beamline which collimated photons from a soft X-ray source to an X-ray CCD which was used as the detector. Several engineering test units were used to perform these studies by measuring the effective area, on and off-axis resolution, and to assess the effects of a vibration test on the module's optical performance. We have shown that the concentrators have made significant progress towards exceeding NICER's final goals.

Paper Details

Date Published: 26 September 2013
PDF: 8 pages
Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88611M (26 September 2013); doi: 10.1117/12.2024108
Show Author Affiliations
Erin Balsamo, Univ. of Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
The Ctr. for Research and Exploration in Space Science and Technology (United States)
Keith Gendreau, NASA Goddard Space Flight Ctr. (United States)
Zaven Arzoumanian, NASA Goddard Space Flight Ctr. (United States)
The Ctr. for Research and Exploration in Space Science and Technology (United States)
Universities Space Research Association (United States)
Takashi Okajima, NASA Goddard Space Flight Ctr. (United States)
Lalit Jalota, Univ. of Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
The Ctr. for Research and Exploration in Space Science and Technology (United States)
Yang Soong, NASA Goddard Space Flight Ctr. (United States)
The Ctr. for Research and Exploration in Space Science and Technology (United States)
Universities Space Research Association (United States)
Peter Serlemitsos, NASA Goddard Space Flight Ctr. (United States)
Teruaki Enoto, Institute of Physical and Chemical Research (Japan)
NASA Goddard Space Flight Ctr. (United States)
Bhalvinder Gulati, NASA Goddard Space Flight Ctr. (United States)
Steven Kenyon, NASA Goddard Space Flight Ctr. (United States)
Devin Hahne, Johns Hopkins Univ. Applied Physics Lab. (United States)
David Fickau, Stinger Ghaffarian Technologies, Inc. (United States)
Nicholas Spartana, Stinger Ghaffarian Technologies, Inc. (United States)
Steve Lentine, Rensselaer Polytechnic Institute (United States)
Ceili Burdhimo, Massachusetts Institute of Technology (United States)
Billy Barrios, California State Univ., Los Angeles (United States)
Lisa Wu, Urbana High School (United States)


Published in SPIE Proceedings Vol. 8861:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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