Production and calibration of the first HEFT hard x-ray optics module
- Others:
- Citterio, Oberto
- O'Dell, Stephen L.
Abstract
Complete hard X-ray optics modules are currently being produced for the High Energy Focusing Telescope (HEFT), a balloon born mission that will observe a wide range of objects including young supernova remnants, active galactic nuclei, and galaxy clusters at energies between 20 and 70 keV. Large collecting areas are achieved by tightly nesting layers of grazing incidence mirrors in a conic approximation Wolter-I design. The segmented layers are made of thermally-formed glass substrates coated with depth-graded multilayer films for enhanced reflectivity. Our novel mounting technique involves constraining these mirror segments to successive layers of precisely machined graphite spacers. We report the production and calibration of the first HEFT optics module.
Additional Information
© 2004 Society of Photo-Optical Instrumentation Engineers (SPIE). This technical progress described in this paper could not have been made without the expert and tireless work of our technical staff. Special Thanks to the staff at ESRF for their assistance with the high energy measurements. This work is supported by a NASA grant to Columbia University: NAG5-5260 (Thermally Formed Optics for X-Ray and Gamma-Ray Astronomy), and by NASA grants to the California Institute of Technology with sub-awards to Columbia: Caltech No. 1019776 (High Energy Focusing Telescope) and Caltech No. 1046806 (Critical Technologies for the Constellation Hard X-Ray Telescope).Attached Files
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Additional details
- Eprint ID
- 84200
- Resolver ID
- CaltechAUTHORS:20180109-150940367
- NASA
- NAG5-5260
- NASA
- 1019776
- NASA
- 1046806
- Created
-
2018-01-09Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 5168