A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals

Details A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ucla.rept.....j&link_type=abstract

Final Report, 1 Dec. 1991 - 31 May 1994 California Univ., Los Angeles, CA. Dept. of Physics and Space Sciences Center.

Physics

Astronomical Spectroscopy, Extreme Ultraviolet Radiation, Photoionization, Photons, Rare Gases, Solar Radiation, Ultraviolet Spectrometers, Electron Energy, Energy Spectra, Photomultiplier Tubes, Solar Spectra, Ultraviolet Spectra

Scientific paper

A prototype spectrometer has been developed for space applications requiring long term absolute EUV photon flux measurements. The energy spectrum of the incoming photons is transformed directly into an electron energy spectrum by taking advantage of the photoelectric effect in one of several rare gases at low pressures. Using an electron energy spectrometer, followed by an electron multiplier detector, pulses due to individual electrons are counted. The overall efficiency of this process can be made essentially independent of gain drifts in the signal path, and the secular degradation of optical components which is often a problem in other techniques is avoided. A very important feature of this approach is its freedom from the problem of overlapping spectral orders that plagues grating EUV spectrometers. An instrument with these features has not been flown before, but is essential to further advances in our understanding of solar EUV flux dynamics, and the coupled dynamics of terrestrial and planetary atmospheres. The detailed characteristics of this optics-free spectrometer are presented in the publications section.

Affiliated with

Also associated with

No associations

Rating

A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals 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 A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A rare gas optics-free absolute photon flux and energy analyzer to provide absolute photoionization rates of inflowing interstellar neutrals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-950813