Collimator design for the J-PEX sounding rocket

Details Collimator design for the J-PEX sounding rocket Collimator design for the J-PEX sounding rocket

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3445..197g&link_type=abstract

Proc. SPIE Vol. 3445, p. 197-204, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX, Oswald H. Siegmund; Mark A. Gummin

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The Joint Astrophysical Plasmadynamic Experiment is a high- resolution extreme UV spectrometer which operates at near- normal incidence and incorporates the most recent developments in reflecting multilayer gratings. The spectrometer comprises the following principal elements: collimators which define the 1.2 degrees field of view, a spherical multilayer-coated grating which consists of 4 segments, each 8 cm by 16 cm in area and with a focal length of 2.2 m, and a microchannel plate imaging detector. The collimator is an adaptation of a previous design which was modified to minimize the input of scattered airglow radiation while maintaining the maximum effective area within the desired field of view. This is achieved by blackening the collimator surfaces with an EBONOL-C process. In this paper we will discuss the design requirements and manufacturing techniques for the collimator.

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