منابع مشابه
PHOTOREACTICITY (365 nm) OF SOME COUMARINS
The Authors have studied the capacity to photoreact with native DNA and r-RNA using six coumarins and four 4',5'-dihydro-furo-coumarins. Six of these substances have shown a definite photoreactivity both with DNA and r-RNA, even if in a very much lower extent in respect to that of skin-photosensitizing furocoumarins. The low capacity to photoreact with nucleic acids of these substances is discu...
متن کاملCharacterization of Optical Constants for Uranium from 10 nm to 47 nm
Nicole Brimhall, Nicholas Herrick, David D. Allred, R. Steven Turley, Michael Ware, and Justin Peatross∗ Department of Physics and Astronomy, Provo, UT 84602 and ∗Corresponding author: [email protected] Abstract We use a laser-high-harmonics-based extreme ultraviolet polarimeter to determine the optical constants of elemental uranium in the wavelength range 10-47 nm. The constants are extracted from...
متن کاملAbandoned Uranium Mines Project Atlas Project Overview
The Navajo Nation is located on the Colorado Plateau and encompasses over 25,000 square miles across Arizona, New Mexico, and Utah. The distinctive physiography of this region has resulted in a major mining area for uranium. The Navajo Nation includes intensely dissected rocky regions and has elevations that range from about 3,000 feet to slightly over 10,000 feet. The region is known for a wid...
متن کاملStandardization of Broadband UV Measurements for 365 nm LED Sources
Broadband UV measurements are evaluated when UV-A irradiance meters measure optical radiation from 365 nm UV sources. The CIE standardized rectangular-shape UV-A function can be realized only with large spectral mismatch errors. The spectral power-distribution of the 365 nm excitation source is not standardized. Accordingly, the readings made with different types of UV meters, even if they meas...
متن کاملCharacterization of optical constants for uranium from 10 to 47 nm.
We use a laser high-harmonics-based extreme-ultraviolet (EUV) polarimeter to determine the optical constants of elemental uranium in the wavelength range from 10 to 47 nm. The constants are extracted from the measured ratio of p-polarized to s-polarized reflectance from a thin uranium film deposited in situ. The film thickness is inferred from a spectroscopic ellipsometry measurement of the sam...
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ژورنال
عنوان ژورنال: Journal of Molecular Spectroscopy
سال: 2020
ISSN: 0022-2852
DOI: 10.1016/j.jms.2020.111270