Search NASA⌕ Search

SEARCH · Search NASA

Results for “spectrographs”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 127 records · Page 7

Spectrographic studies: Electron induced luminescence in optical materials

The spectral luminescence induced in UV grade sapphire, MgF2 and LiF2, three fused silicas, and three Corning glasses, by 1/2, 1, 2, and 3 MeV electrons was recorded. In the wavelength range from the LiF UV cutoff to the near visible, a plane-grating spectrograph with photographic recording at resolutions of 0.8 and 1.6 nm was utilized. Qualitative results based on relative density tracings of seven of the nine materials obtained from preliminary plates are given.

Romanko, J.↗

The automation of the Wisconsin echelle spectrograph.

The Wisconsin echelle spectrograph has been placed under computer control. The early operating system and techniques are discussed, as is the automatic data handling afforded by the computer. Some results are shown and future directions are pointed out.

Mcnall, J. F.↗

Ultraviolet solar spectrum recorded by echelle spectrograph /1970 to 1800 A/.

Six spectrograms of the solar spectrum were obtained in the region from 1970 to 1800 A at a resolution of approximately 200,000 with a rocket-borne spectrograph using an echelle as the principal dispersing element. Reduction of data obtained has been completed in the region from 1946.5 to 1963.5 A, in which 79 absorption features are measured and 33 identified. Most of the identified stronger lines are due to Fe I. A significant feature of the solar spectrum in this region coincides with the raie ultime of Se I.

Mcallister, H. C.↗

Conversational high resolution mass spectrographic data reduction

A FORTRAN 4 program is described which reduces the data obtained from a high resolution mass spectrograph. The program (1) calculates an accurate mass for each line on the photoplate, and (2) assigns elemental compositions to each accurate mass. The program is intended for use in a time-shared computing environment and makes use of the conversational aspects of time-sharing operating systems.

Romiez, M. P.↗