| Zugriffsnummer | 13657 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Aircrew exposure from cosmic radiation on commercial airline routes |
| Autor(in); Institution |
Lewis, B. J.; Royal Military College of Canada, Kingston Ontario, CANADA
McCall, M. J.; Royal Military College of Canada, Kingston Ontario, CANADA
Green, A. R.; Royal Military College of Canada, Kingston Ontario, CANADA
Bennet, L. G. I .; Royal Military College of Canada, Kingston Ontario, CANADA
Pierre, M.; Royal Military College of Canada, Kingston Ontario, CANADA
Schrewe, Ulrich J.; 6.303, Dosimetrie der kosmischen Strahlung, PTB-Braunschweig
O'Brien, K.; Northern Arizona University, Flagstaff, Arizona, USA
Felsberger, E.; Technical University Graz, Graz, AUSTRIA
|
| Quelle/Jahr | Radiation Protection Dosimetry: 93 (2001), 4, 293 - 314 |
| ISSN | 0144-8420 |
| Verlag | Ashford, Kent: Nuclear Technology Publishing |
| Klassifikationscode | PACS: 98.70.Sa ; PACS: 87.53.Bn |
| Zusammenfassung | As a result of the recent recommendations of the ICRP-60, and in anticipation of possible regulation on occupational exposure of Canadian-based aircrew, an extensive study was carried out by the Royal Military College of Canada over a one-year period to measure the cosmic radiation at commercial yet altitudes. A tissue equivalent proportional counter was used to measure the ambient total dose equivalent rate on 62 flight routes, resulting in over 20 000 data points at one-minute intervals at various altitudes and geomagnetic latitudes (i.e. which span the full cuoff rigidity of the Earth's magnetic field). These dat were then compared to similar experimental work at the Physikalisch-Technische Bundesanstalt, using a different suite of equipment, to seperately measure the low and high linear energy transfer components of the mixed radiation field, and to predictions with the LUIN transport code. All experimental and theoretical results were in excellent agreement. From these data, a semi-empirical model was developed to allow the interpolation of the dose rate for any global position, altitude and date (i.e. heliocentric potential). Through integration fo the dose-rate function over a great circle flight path, a computer code was developed to provide an estimate of the total dose equivalent on any route worldwide at any period in the solar cycle. |
