The Extreme Ultraviolet Explorer Spectrometer: Performance Characteristics Based On Development Of The Collimator, Variable Line Space Gratings, Telescope And Detectors

AbstractThe Extreme Ultraviolet Explorer mission is described. For the first six months, an all-sky survey will be carried out covering 90 to 750 Å, or essentially the entire extreme ultraviolet (EUV) bandpass. This EUV survey will be made in four bands, or colors: λλ 90-150 Å, 170-250 Å, 400-600 Å, and 550-750 Å. A portion of the sky which is free from the normally intense 304 Å geocoronal helium background will be surveyed at greater sensitivity; the wavelength coverage of this band is from 90 to 400 Å. Following the sky survey portion of the mission, spectroscopy of individual sources will be carried out. Three spectrometers employing novel variable line-space gratings will provide spectra with ~1 Å resolution over the band from 70 to 760 Å. This spectroscopy will be carried out by guest observers chosen by NASA in a manner roughly analogous to the International Ultraviolet Explorer (IUE) guest observer program.

Download Full-text

A simple variable line space grating monochromator for synchrotron light source beamlines

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/0168-9002(92)90543-d ◽

1992 ◽

Vol 319 (1-3) ◽

pp. 128-134 ◽

Cited By ~ 22

Author(s):

T.A. Callcott ◽

W.L. O'Brien ◽

J.J. Jia ◽

Q.Y. Dong ◽

D.L. Ederer ◽

...

Keyword(s):

Light Source ◽

Variable Line ◽

Grating Monochromator ◽

Synchrotron Light ◽

Line Space

Download Full-text

Design and fabrication of a variable-line-space grating surface for a Fresnel-grating lens based miniature spectrometer

Holography, Diffractive Optics, and Applications VIII ◽

10.1117/12.2500950 ◽

2018 ◽

Author(s):

Hui Lin ◽

Menglin Geng ◽

Qian Zhou ◽

Xinghui Li ◽

Kai Ni ◽

...

Keyword(s):

Variable Line ◽

Line Space

Download Full-text

Variable line-space gratings: new designs for use in grazing incidence spectrometers

Applied Optics ◽

10.1364/ao.22.003921 ◽

1983 ◽

Vol 22 (24) ◽

pp. 3921 ◽

Cited By ~ 95

Author(s):

Michael C. Hettrick ◽

Stuart Bowyer

Keyword(s):

Grazing Incidence ◽

Variable Line ◽

Line Space

Download Full-text

Variable line space slitless spectrometers at grazing incidence

10.1063/1.34661 ◽

1984 ◽

Author(s):

M. C. Hettrick

Keyword(s):

Grazing Incidence ◽

Variable Line ◽

Line Space

Download Full-text

The Extreme Ultraviolet Explorer Mission

International Astronomical Union Colloquium ◽

10.1017/s0252921100076995 ◽

1990 ◽

Vol 123 ◽

pp. 153-169

Author(s):

Stuart Bowyer

Keyword(s):

Extreme Ultraviolet ◽

Variable Line ◽

Explorer Mission ◽

Sky Survey ◽

Made In

AbstractThe Extreme Ultraviolet Explorer mission is described. The satellite is now scheduled to be launched in September, 1991. For the first six months, an all sky survey will be carried out covering 90 to 820 Å, or essentially the entire EUV bandpass. This EUV survey will be made in four bands, or colors, λλ90–150 Å; 170–250 Å, 400–600 Å and 550–750 Å. A portion of the sky which is free from the normally intense 304 Å geocoronal helium background will be surveyed at greater sensitivity; the wavelength coverage of this band is from 90 to 400 Å. Following the sky survey portion of the mission, spectroscopy of individual sources will be carried out. Three spectrometers employing novel variable line spaced gratings will provide spectra with ~1 Å resolution over the band from 90 to 800 Å. This spectroscopy will be carried out by guest observers chosen by NASA in a manner roughly analogous to the IUE guest observer program.

Download Full-text