A new generation of spectrometer designs for ultraviolet astronomy

Details A new generation of spectrometer designs for ultraviolet astronomy A new generation of spectrometer designs for ultraviolet astronomy

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..529h&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 529 (SEE N85-20961 11-89

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Grazing Incidence, Ultraviolet Spectrometers, Echelle Gratings, Grooves, High Resolution, Mirrors, Ray Tracing, Reflection

Scientific paper

In grazing incidence reflecting grating spectrometers, a plane grating (or combination or plane gratings) directly intercepts, diffracts and focuses at grazing incidence the light collected by a preceding mirror. The common feature of the resulting gratings is a smooth spatial variation in the grooves spacings. Some grooves diffract within the plane of incidence, and are spaced quadratically with the distance from focus; while other grooves diffract conically, and fan-out linearly with the distance from a ruling focus located behind the mirror focus. Several variants of these solutions are analyzed through both analytic calculations and raytraces, which describes the imaging properties. It is shown that the in-plane grating mount is required if resolutions in excess of approximately 1000 are needed. A grating having grooves concentric about a common line, is raytraced and delivers in the extreme UV a lambda/delta lambda approximately 10,000 over a few percent in wavelength. In combination with a conical fan low resolution cross-disperser, a two-element echelle spectrometer operates at several x 10 10,000 over a factor of two in wavelength simultaneously.

Affiliated with

Also associated with

No associations

Rating

A new generation of spectrometer designs for ultraviolet 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 A new generation of spectrometer designs for ultraviolet astronomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new generation of spectrometer designs for ultraviolet astronomy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-738653