1.
Appl Opt
; 28(3): 496-509, 1989 Feb 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-20548509
RESUMO
We have performed theoretical determination and experimental calibrations of an objective grating designed for high resolution spectroscopy of astronomical faint sources in the EUV and far-UV wavelength ranges (500-1400 A). First through theoretical calculations we show the feasibility of the concept with an aspheric shape for the grating blank and determine its geometrical parameters. A grating of this large size has been manufactured and tested, associated with a photon counting detector, in a vacuum environment. Finally we demonstrate that a resolving power of 3 x 10(4), a total equivalent effective area of ~5-10 cm(2) can be achieved, together with a very low scattered light level (10(-4)-10(-5) of the peak value).
2.
[Transcortical anesthesia in current practice]. / L'anesthésie trans-corticale en pratique courante.
Chir Dent Fr
; 53(185): 29-30, 1983 Jan 06.
Artigo
em Francês
| MEDLINE
| ID: mdl-6574882