The study of the energy of electrons ejected from matter by the photoelectric effect, i.e., as a direct result of absorption of energy from electromagnetic radiation. As the energies of the electrons are characteristic of a specific element, the measurement of the energy of these electrons is a technique used to determine the chemical composition of surfaces
That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants
Ultraviolet radiation -- Congresses. : Ultraviolet light induced reactions in polymers : an international symposium sponsored by the Division of Organic Coatings and Plastics Chemistry at the 169th meeting of the American Chemical Society, Philadelphia, Penn., April 8-11, 1975 / Santokh S. Labana, editor
1976
1
Ultraviolet radiation -- Dosage : Occupational standards for exposure to ultraviolet radiation (1986) / National Health and Medical Research Council
Ultraviolet radiation -- Instruments : Cell biology and instrumentation : UV radiation, nitric oxide and cell death in plants / edited by Yaroslav Blume, Don J. Durzan and Petro Smertenko
That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants
That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants
Ultraviolet Rays -- adverse effects -- Congresses : Environmental UV radiation impact on ecosystems and human health and predictive models / edited by Francesco Ghetti, Giovanni Checcucci, and Janet F. Bornman
The use of ultraviolet electromagnetic radiation in the treatment of disease, usually of the skin. This is the part of the sun's spectrum that causes sunburn and tanning. Ultraviolet A, used in PUVA, is closer to visible light and less damaging than Ultraviolet B, which is ionizing
Ultraviolet spectra -- Indexes. : Molecular formula list of compound names and references to published ultraviolet and visible spectra / Indexed by the Wyanadotte -ASTM (Kuentzel) punched-card index
Ultraviolet spectroscopy -- Programmed instruction. : Visible and ultraviolet spectroscopy : analytical chemistry by open learning / authors, Ronald C. Denney, Roy Sinclair ; editor, David Mowthorpe on behalf of ACOL
The use of ultraviolet electromagnetic radiation in the treatment of disease, usually of the skin. This is the part of the sun's spectrum that causes sunburn and tanning. Ultraviolet A, used in PUVA, is closer to visible light and less damaging than Ultraviolet B, which is ionizing
