caa a22 4500 397503393 CHVBK 20180308164538.0 cr unu---uuuuu 161202e19950501xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082649 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082649 Grosswendt B. Angular Dependence Factors and Air Kerma to Dose Equivalent Conversion Coefficients for Cylindrical Phantoms Irradiated by Plane-Parallel Extended Monoenergetic Photon Beams [Elektronische Daten] [B. Grosswendt] With the aid of the Monte Carlo method, conversion coefficients between the receptor-free air collision kerma and the collision kerma for 4-element ICRU tissue have been calculated at a depth of 0.007 g.cm-2 in circular cylinder phantoms irradiated by broad plane-parallel photon beams in a direction perpendicular to the cylinder main axis. The phantom material was ICRU tissue or PMMA; the phantom diameter 1.9 cm, 7.3 cm, of 30 cm; the phantom length 30 cm. The calculations were performed for monoenergetic photons in the energy range between 4 keV and 1.25 MeV. The conversion coefficients can be used in the field of extremity dosimetry to convert measured kerma or exposure values into personal dose equivalents: the results for the 7.3 cm diameter cylinder phantoms for the calibration of wrist or ankle dosemeters; those for the 1.9 cm diameter phantoms for the calibration of finger dosemeters. In addition to the conversion coefficients, their angular dependence factors in the middle plane of the phantoms perpendicular to the main axis were also studied. Such quantities for the ICRU tissue phantoms are necessary in the procedure for type testing extremity dosemeters on rod or pillar phantoms. Radiation Protection Dosimetry Radiation Protection Dosimetry Oxford University Press 59/3(1995-05-01), 165-179 0144-8420 59:3<165 1995 59 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082649 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082649 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Grosswendt B. NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 59/3(1995-05-01), 165-179 0144-8420 59:3<165 1995 59 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford