Integrated x-ray testing of the electro-optical breadboard model for the X-ray Multimirror Mission (XMM) reflection grating spectrometer

Details Integrated x-ray testing of the electro-optical breadboard model for the X-ray Multimirror Mission (XMM) reflection grating spectrometer Integrated x-ray testing of the electro-optical breadboard model for the X-ray Multimirror Mission (XMM) reflection grating spectrometer

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2280..418b&link_type=abstract

Proc. SPIE Vol. 2280, p. 418-429, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, Oswald H. Siegmund; John V. Vallerg

Astronomy and Astrophysics

Astronomy

Scientific paper

X-ray calibration of the Electro-Optical Breadboard Model (EOBB) of the XMM Reflection Grating Spectrometer has been carried out at the Panter test facility in Germany. The EOBB prototype optics consisted of a four-shell grazing incidence mirror module followed by an array of eight reflection gratings. The dispersed x-rays were detected by an array of three CCDs. Line profile and efficiency measurements were made at several energies, orders, and geometric configurations for individual gratings and for the grating array as a whole. The x-ray measurements verified that the grating mounting method would meet the stringent tolerances necessary for the flight instrument. Post EOBB metrology of the individual gratings and their mountings confirmed the precision of the grating boxes' fabrication. Examination of the individual grating surface's at micron resolution revealed the cause of anomalously wide line profiles to be scattering due to the crazing of the replica's surface.

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