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First results from the ground calibration of the NuSTAR flight optics

Koglin, Jason E. and An, HongJun and Barrière, Nicolas and Brejnholt, Nicolai F. and Christensen, Finn E. and Craig, William W. and Hailey, Charles J. and Jakobsen, Anders Clemen and Madsen, Kristin K. and Mori, Kaya and Nynka, Melania and Fernandez-Perea, Monica and Pivovaroff, Michael J. and Ptak, Andrew and Sleator, Clio and Thornhill, Doug and Vogel, Julia K. and Wik, Daniel R. and Zhang, William W. (2011) First results from the ground calibration of the NuSTAR flight optics. In: Optics for EUV, X-Ray, and Gamma-Ray Astronomy V. Proceedings of SPIE. No.8147. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 81470J. ISBN 978-0-8194-8757-5.

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NuSTAR is a hard X-ray satellite experiment to be launched in 2012. Two optics with 10.15 m focal length focus Xrays with energies between 5 and 80 keV onto CdZnTe detectors located at the end of a deployable mast. The FM1 and FM2 flight optics were built at the same time based on the same design and with very similar components, and thus the performance of both is expected to be very similar. We provide an overview of calibration data that is being used to build an optics response model for each optic and describe initial results for energies above 10 keV from the ground calibration of the flight optics. From a preliminary analysis of the data, our current best determination of the overall HPD of both the FM1 and FM2 flight optics is 52", and nearly independent of energy. The statistical error is negligible, and a preliminary estimate of the systematic error is of order 4". The as-measured effective area and HPD meet the toplevel NuSTAR mission sensitivity requirements.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Barrière, Nicolas0000-0001-9407-9490
Christensen, Finn E.0000-0001-5679-1946
Madsen, Kristin K.0000-0003-1252-4891
Mori, Kaya0000-0002-9709-5389
Nynka, Melania0000-0002-3310-1946
Ptak, Andrew0000-0001-5655-1440
Wik, Daniel R.0000-0001-8952-676X
Zhang, William W.0000-0002-1426-9698
Additional Information:© 2011 SPIE. We gratefully acknowledge the technical support Zeshan Haier provided in setting up and maintaining the RaMCaF calibration facility for the FM1 and FM2 measurements. This work is supported by a NASA contract to Columbia University, NNG08FD60C, “The Nuclear Spectroscopy Telescope Array (NuSTAR): Bringing the High Energy Universe into Focus.” Part of this work was funded by the Technical University of Denmark (DTU Space). Part of this work was also performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL contributions included support from LDRD project 10-SI-007. The use of the RMD X-ray detector for optics calibration was made possible thanks to NASA SBIR Grant NNX11CH32P. The prototype SDD development is funded by IRAP, the French National Center for Scientific Research (CNRS) and the Centre National d'Etudes Spatiales (CNES).
Group:NuSTAR, Space Radiation Laboratory
Funding AgencyGrant Number
Technical University of DenmarkUNSPECIFIED
Department of Energy (DOE)DE-AC52-07NA27344
Lawrence Livermore National Laboratory10-SI-007
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Centre National d'Etudes Spatiales (CNES)UNSPECIFIED
Subject Keywords:Hard X-ray telescope, X-ray optics, segmented glass, NuSTAR
Series Name:Proceedings of SPIE
Issue or Number:8147
Record Number:CaltechAUTHORS:20161028-131306899
Persistent URL:
Official Citation:Jason E. Koglin ; HongJun An ; Nicolas Barrière ; Nicolai F. Brejnholt ; Finn E. Christensen ; William W. Craig ; Charles J. Hailey ; Anders Clemen Jakobsen ; Kristin K. Madsen ; Kaya Mori ; Melania Nynka ; Monica Fernandez-Perea ; Michael J. Pivovaroff ; Andrew Ptak ; Clio Sleator ; Doug Thornhill ; Julia K. Vogel ; Daniel R. Wik and William W. Zhang "First results from the ground calibration of the NuSTAR flight optics", Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 81470J (October 06, 2011); doi:10.1117/12.895279;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71580
Deposited By: Tony Diaz
Deposited On:28 Oct 2016 20:35
Last Modified:09 Mar 2020 13:19

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