منابع مشابه
Comparison of Bone Mineral Density Measured by Dual X-ray, Axial Dual-energy Photon X-ray Absorptiometry and Laser Absorptiometry of Calcaneus
The objective of this study was to validate the use of bone mineral measurements of the calcaneus bone by dual X-ray and laser (DXL) in a cross-sectional study carried out in an osteoporosis clinic. Measurements of bone mineral density (BMD) at proximal femur and spine were obtained by dual-energy photon X-ray absorptiometry (DEXA). Osteoporosis was defined by a DEXA T-score <-2.5 at the femora...
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We present the soft X-ray laser experiments performed at Greco "Interaction Laser-Matisre" (Palaiseau). They are mainly concerned with Lithium-like ions of aluminum in plasmas produced by 1.06v Nd-laser. We describe the experimental set-up which performs time-dependent gain measurements. We report results showing a gain-length product of 2 2.5 for the 3d 5f line at 105.7 A . Comparison is made ...
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Photoelectric pumping of inner shells of intermediate Z materials is shown to be efficient for inverting the population ot" radiative transitions around 1 keV. Non-radiative processes are shown to be essential for achieving a stationdry inversion. Reported intense X-ray bursts from plasmas generated by laser radiation suggest the use of a Nd laser as exciting source. Threshold evaluations show ...
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ژورنال
عنوان ژورنال: THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE
سال: 1988
ISSN: 0288-6200
DOI: 10.2530/jslsm1980.9.3_21