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Radiation transport simulations had to be done in preparation of operation of the X-ray tube ISOVOLT 320 kV/13mA in a special laboratory. At first simulation was done without shielding the roof of the laboratory, showing a dose rate maximum of more than 100 mSv/h. This dose rate results in a skyshine dose rate of at most 2 lSv/h in the surrounding of the building without shielding the roof. For similar geometries the skyshine is negligible for dose rates at the unshielded roof of less than 3 mSv/h (exclusion area).
From P. Sahre | M. Kaden | T. Schönmuth | J. Pawelke | B. Naumann | U. Reichelt
(Received 21.06.2012)
Appeared in Kerntechnik 2012/03, Page 191-192
Direct link: http://www.nuclear-engineering-journal.com/KT110267
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Dose contributions due to radiation scattered by air (skyshine) in the case of x-ray machines [212 KB]
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References
1 Manual ISOVOLT 160/225/450 MS, Agfa NDT Pantak Seifert, 2002.
2 Gabriel, F.; Gippner, P.; Grosse, E.; Janssen, D.; Michel, P.; Prade, H.; Schamlott, A.; Seidel, W. Wolf, A.; Wünsch, R.: The Rossendorf radiation source ELBE and its FEL projects. Nucl. Instr. and Meth. B Vol 161–163 (2000) 1143–1147.
3 Henniger, J.: AMOS – ein multivalent nutzbares Programmsystem zur Berechnung von Strahlungstransportproblemen, Strahlenschutz: Physik und Messtechnik, Band 1, Verlag TÜV-Rheinland, S. 145– 150, 1994.
4 Reichelt, U.; Henniger, J.; Neubert, W.; Pawelke, J.: Shielding calculations for an X-ray laboratory, Wissenschaftlich-technischer Bericht FZR-372, April 2003, S. 71.
5 Radiation Protection Design Guidelines for 0.1 –100 MeV Particle Accelerator Facilities, NCRP-Report No. 51, March 1, 1977.
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