Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces

Details Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2808..313e&link_type=abstract

Proc. SPIE Vol. 2808, p. 313-324, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII, Oswald H. Siegmund; Mark A. Gummi

Astronomy and Astrophysics

Astronomy

Scientific paper

On future astronomical instruments for the soft x-ray to FUV, stray light may be a significant cause of background events. Currently, we are engaged in an ongoing program to identify materials that are suitable for use as low- reflectance surfaces in space based instruments. As a result, we have measured the scattering performance in this spectral region, of wide a selection of low-reflectivity materials, produced with a range of processes. We present preliminary measurements of the absolute bidirectional reflectance distribution function (BRDF) for a selection of seven of these materials. Measurements were obtained at a five spectral lines, including strong geocoronal lines, over the wavelength range 44 to 1216 angstrom at near grazing incidence. We find that in most cases for constant incident and scatter angles, the total variation of BRDF with wavelength over this range is only a factor of order ten. We also find that although we have identified materials which in many instances have lower reflectances than bead blasted aluminum, it is still a good choice for most applications given its low cost and convenience.

Affiliated with

Also associated with

No associations

Rating

Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces 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 Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft x-ray to FUV measurements of the grazing incidence BRDF for a selection of low-reflectance surfaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1142270