Results 141 to 150 of about 534 (173)
Some of the next articles are maybe not open access.
Optical Design of the ARC Echelle Spectrometer
1988The high-dispersion spectrometer for the ARC 3.5-m telescope combines an echelle with prism cross-dispersion in an in-plane arrangement. This spectrometer will be located at an f/10 Nasmyth focus with an off-axis paraboloidal collimator and an f/2.7 Schmidt camera with achromatic corrector and CCD detector.
openaire +1 more source
Figures of merit for an ICP-echelle spectrometer system
Spectrochimica Acta Part B: Atomic Spectroscopy, 1982Abstract Figures of merit of an ICP-echelle Spectrometer System are presented for 55 elements. The analytical importance of each figure of merit is discussed. The analytical results obtained with the ICP-echelle system compare well with previously published figures for ICP studies.
openaire +1 more source
Optimization of a direct-current plasma emission echelle spectrometer
Analytica Chimica Acta, 1987Abstract Simplex optimization and Box-Behnken partial factorial experimental design techniques were used to optimize the quantitative performance of a direct-current plasma system. Argon pressure and plasma position were selected as variables. The simplex optimization located the region of optimum sensitivity, and the partial factorial design ...
Martha S. Hendrick, Robert G. Michel
openaire +1 more source
Investigation of wavelength calibration for an echelle cross-dispersion spectrometer
Journal of Analytical Atomic Spectrometry, 2003The effects of ambient temperature and relative humidity on the positions of spectral lines on a two-dimensional focal plane were investigated. When environmental conditions change, a spectral line can move in both the horizontal (x) and vertical (y) directions.
Keling Liu, Gary M. Hieftje
openaire +1 more source
The performance of a large echelle grating in a solar spectrometer
Solar Physics, 1967A number of tests of a large diffraction grating are described. It is shown that useful information about the performance of the grating in a spectrometer can be obtained from an analysis of the diffracted wavefront by the method of Stroke. Comparison of the instrumental profile at three wavelengths strongly suggests that the influence of changes in ...
openaire +1 more source
GIANO: An Ultra-Stable IR Echelle Spectrometer for the TNG Telescope
2006GIANO is an IR cross-dispersed echelle spectrometer designed to achieve high throughput, high resolving power, wide band coverage and high accuracy radial velocity measurements. It also includes polarimetric capabilities and a low resolution mode that make it a very versatile, common user instrument which will be permanently mounted and available at ...
OLIVA E +19 more
openaire +2 more sources
The Multi-Echelle Grating Arrangement (Mega) Spectrometer
SPIE Proceedings, 1984A spectrometer system, based on the Multi-Echelle Grating Arrangement (MEGA) (1) has been developed. Through series diffraction in an even number of echelle gratings, high dispersion and spectral resolutions are obtained. It can be shown (1) that with n gratings of width W, utilized in a MEGA-spectrometer of focal length f, the same resolution and ...
openaire +1 more source
High resolution stellar spectroscopy with VBT echelle spectrometer
Journal of Astrophysics and Astronomy, 2005The optical design and performance of the recently commissioned fiber fed echelle spectrometer of 2.34 meter Vainu Bappu Telescope are described. The use of it for stellar spectroscopic studies is discussed.
N. Kameswara Rao +3 more
openaire +1 more source
Echelle Grating Spectrometers in Analytical Spectrometry
Analytical Chemistry, 1976Peter N. Keliher, Charles C. Wohlers
openaire +1 more source