Development of high resolution imaging detectors for X ray astronomy

Details Development of high resolution imaging detectors for X ray astronomy Development of high resolution imaging detectors for X ray astronomy

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sao..reptq....m&link_type=abstract

Final Report, 1 May 1982 - 30 Jun. 1991 Smithsonian Astrophysical Observatory, Cambridge, MA.

Physics

Optics

Focusing, High Resolution, Image Resolution, Microchannel Plates, Photocathodes, X Ray Imagery, X Ray Telescopes, Angular Resolution, Efficiency, Readout

Scientific paper

This final report summarizes our past activities and discusses the work performed over the period of 1 April 1990 through 1 April 1991 on x-ray optics, soft x-ray (0.1 - 10 KeV) imaging detectors, and hard x-ray (10 - 300 KeV) imaging detectors. If microchannel plates (MCPs) can be used to focus x-rays with a high efficiency and good angular resolution, they will revolutionize the field of x-ray optics. An x-ray image of a point source through an array of square MCP pores compared favorably with our ray tracing model for the MCP. Initial analysis of this image demonstrates the feasibility of MCPs for soft x-rays. Our work continues with optimizing the performance of our soft x-ray MCP imaging detectors. This work involves readout technology that should provide improved MCP readout devices (thin film crossed grid, curved, and resistive sheets), defect removal in MCPs, and photocathode optimization. In the area of hard x-ray detector development we have developed two different techniques for producing a CsI photocathode thickness of 10 to 100 microns, such that it is thick enough to absorb the high energy x-rays and still allow the photoelectrons to escape to the top MCP of a modified soft x-ray imaging detector. The methods involve vacuum depositing a thick film of CsI on a strong back, and producing a converter device that takes the place of the photocathode.

Affiliated with

Also associated with

No associations

Rating

Development of high resolution imaging detectors for X ray astronomy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Development of high resolution imaging detectors for X ray astronomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Development of high resolution imaging detectors for X ray astronomy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1741165