The design and description of a 300-1200 angstrom stellar spectrograph
Design of 300 to 1200 angstrom stellar spectrograph
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Design of 300 to 1200 angstrom stellar spectrograph
Rocket spectrographic ultraviolet observations of alpha VIR star
Examination of Liwshitz-Singer model for comparison with Lyman alpha rocket spectrograph
Rocket spectrographic observations of Alpha Virginis noting hydrogen Lyman absorption lines
Radial velocity errors in high dispersion astronomical spectrographs in terms of variable spectral shifts along plate produced by mirror surface irregularities
Image tube camera and spectrograph for observing artificial aurora
Calibration of far ultraviolet spectrograph and study of vacuum spark breakdown
Kerr cell-shuttered high speed stigmatic spectrograph for shock tube electron density distribution measurement
Event-triggered high speed spectrograph shutter, studying shock tube plasmas
Engineering and performance specifications for solar wind/charge spectrograph and solar wind direction indicator
Earth hydrogen geocorona models comparison with solar Lyman alpha spectrographic data from Aerobee rocket flight measurements
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.
The slit and multiplier tube of the spectrograph are replaced by an intensifier tube scanner. Two data-collection schemes are described. Results and future directions are discussed as is an application to rockets.
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.
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.
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.