First results from the ground calibration of the NuSTAR flight optics

被引：20

作者：

Koglin, Jason E. ^{[1
]}

An, HongJun ^{[1
]}

Barriere, Nicolas ^{[2
]}

Brejnholt, Nicolai F. ^{[3
]}

Christensen, Finn E. ^{[3
]}

Craig, William W. ^{[2
]}

Hailey, Charles J. ^{[1
]}

Jakobsen, Anders Clemen ^{[3
]}

Madsen, Kristin K. ^{[4
]}

Mori, Kaya ^{[1
]}

Nynka, Melania ^{[1
]}

Fernandez-Perea, Monica ^{[5
]}

Pivovaroff, Michael J. ^{[5
]}

Ptak, Andrew ^{[6
]}

Sleator, Clio ^{[1
]}

Thornhill, Doug ^{[1
]}

Vogel, Julia K. ^{[5
]}

Wik, Daniel R. ^{[6
]}

Zhang, William W. ^{[6
]}

机构：

[1] Columbia Univ, Columbia Astrophys Lab, 538 W 120th St, New York, NY 10027 USA

[2] Univ Calif Berkeley, Berkeley, CA 94720 USA

[3] Danish Tech Univ, Copenhagen, Denmark

[4] CALTECH, Pasadena, CA 91125 USA

[5] Lawrence Livermore Natl Lab, Livermore, CA USA

[6] Goddard Space Flight Ctr, Greenbelt, MD USA

来源：

OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY V | 2011年 / 8147卷

关键词：

Hard X-ray telescope; X-ray optics; segmented glass; NuSTAR; HEFT;

D O I：

10.1117/12.895279

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 top-level NuSTAR mission sensitivity requirements.

引用

页数：16

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