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The International Union of Pure and Applied Physics is an international non-governmental organization whose mission is to assist in the worldwide development of physics, to foster international cooperation in physics, and to help in the application of physics toward solving problems of concern to humanity. It was established in 1922 and the first General Assembly was held in 1923 in Paris. The Union is domiciled in Geneva, Switzerland.
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Laser-ultrasonics uses lasers to generate and detect ultrasonic waves. It is a non-contact technique used to measure materials thickness, detect flaws and carry out materials characterization. The basic components of a laser-ultrasonic system are a generation laser, a detection laser and a detector.
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Terbium phosphide is an inorganic compound of terbium and phosphorus with the chemical formula TbP.
Coherent microwave scattering is a diagnostic technique used in the characterization of classical microplasmas. In this technique, the plasma to be studied is irradiated with a long-wavelength microwave field relative to the characteristic spatial dimensions of the plasma. For plasmas with sufficiently low skin-depths, the target is periodically polarized in a uniform fashion, and the scattered field can be measured and analyzed. In this case, the emitted radiation resembles that of a short-dipole predominantly determined by electron contributions rather than ions. The scattering is correspondingly referred to as constructive elastic. Various properties can be derived from the measured radiation such as total electron numbers, electron number densities, local magnetic fields through magnetically-induced depolarization, and electron collision frequencies for momentum transfer through the scattered phase. Notable advantages of the technique include a high sensitivity, ease of calibration using a dielectric scattering sample, good temporal resolution, low shot noise, non-intrusive probing, species-selectivity when coupled with resonance-enhanced multiphoton ionization (REMPI), single-shot acquisition, and the capability of time-gating due to continuous scanning.
References
- ↑ "Council". Institute of Physics. Retrieved 14 January 2015.
- ↑ Porter, R W; Palmer, S B; Langton, C M (1984). "The measurement of broadband ultrasonic attenuation in cancellous bone". Engineering in Medicine. 13 (2): 89–91. doi:10.1243/EMED_JOUR_1984_013_022_02. ISSN 0046-2039. PMID 6540216.
- ↑ Porter RW, Miller CG, Grainger D, Palmer SB (1990). "Prediction of hip fracture in elderly women: a prospective study". BMJ. 301 (6753): 638–41. doi:10.1136/bmj.301.6753.638. PMC 1663899 . PMID 2224217.
- ↑ Strelitzki, R.; Clarke, A. J.; Truscott, J. G.; Evans, J. A. (1996). "Ultrasonic measurement: An evaluation of three heel bone scanners compared with a bench-top system". Osteoporosis International. 6 (6): 471–479. doi:10.1007/BF01629580. ISSN 0937-941X. PMID 9116393. S2CID 26081955.
- ↑ Scruby, C. B.; Dewhurst, R. J.; Hutchins, D. A.; Palmer, S. B. (1980). "Quantitative studies of thermally generated elastic waves in laser-irradiated metals". Journal of Applied Physics. 51 (12): 6210. Bibcode:1980JAP....51.6210S. doi:10.1063/1.327601. ISSN 0021-8979.
- ↑ Dewhurst, R. J. (1982). "Quantitative measurements of laser-generated acoustic waveforms". Journal of Applied Physics. 53 (6): 4064–4071. Bibcode:1982JAP....53.4064D. doi:10.1063/1.331270. ISSN 0021-8979.
- ↑ Davies, S J; Edwards, C; Taylor, G S; Palmer, S B (1993). "Laser-generated ultrasound: its properties, mechanisms and multifarious applications". Journal of Physics D: Applied Physics. 26 (3): 329–348. Bibcode:1993JPhD...26..329D. doi:10.1088/0022-3727/26/3/001. ISSN 0022-3727. S2CID 17358514.
- ↑ Baaklini, George Y.; Edwards, Christopher; Stratoudaki, Theodosia; Dixon, Stephen; Palmer, Stuart B.; Nove, Carol A.; Boltz, Eric S. (2000). "Noncontact ultrasound studies of composite materials: New developments". In Baaklini, George Y; Nove, Carol A; Boltz, Eric S (eds.). Nondestructive Evaluation of Aging Materials and Composites IV. Vol. 3993. pp. 268–275. doi:10.1117/12.385498. ISSN 0277-786X. S2CID 138019031.
{{cite book}}:|journal=ignored (help) - ↑ Baruchel, J.; Aubert, G.; Palmer, S.B.; Schlenker, M. (1986). "Observation of ferro-helimagnetic phase coexistence in Tb crystals". Journal of Magnetism and Magnetic Materials. 54–57: 1631–1632. Bibcode:1986JMMM...54.1631B. doi:10.1016/0304-8853(86)90954-6. ISSN 0304-8853.
- ↑ "NEWS BULLETIN, July 2013" (PDF). IUPAP archive. Retrieved 14 January 2015.
- ↑ "Executive Council: Officers Archive 2002-2014". IUPAP. Archived from the original on 20 January 2015. Retrieved 14 January 2015.
- ↑ "Train Named After University of Warwick Deputy Vice-Chancellor". University of Warwick. Retrieved 14 January 2015.
- ↑ "Phillips Award recipients" . Retrieved 22 December 2019.
