| Zugriffsnummer | 23635 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Microdosimetric measurements in the secondary radiation field produced in 12C-therapy irradiations |
| Autor(in); Institution |
Wissmann, Frank; 6.4, Ionenbeschleuniger und Referenzstrahlungsfelder, PTB-Braunschweig
Giesen, Ulrich; 6.4, Ionenbeschleuniger und Referenzstrahlungsfelder, PTB-Braunschweig
Klages, Thorsten; 6.4, Ionenbeschleuniger und Referenzstrahlungsfelder, PTB-Braunschweig
Schardt, D.; Gesellschaft für Schwerionenforschung, Biophysik, Darmstadt, GERMANY
Martino, G.; Gesellschaft für Schwerionenforschung, Biophysik, Darmstadt, GERMANY
Sunil, C.; Bhabba Atomic Research Center, Mumbay, INDIA
|
| Quelle/Jahr | Radiation and Environmental Biophysics: 49 (2010), 3, 331 - 336 |
| ISSN | 0301-634X (PRINT) ; 1432-2099 (ONLINE) |
| DOI | |
| Verlag | Berlin: Springer |
| Konferenzangaben | Symposium "Heavy Ions in Therapy and Space", Cologne, 06-10, July, 2009, Germany |
| Klassifikationscode | PACS: 87.53.Bn ; PACS: 87.55.N |
| Freie Schlagworte | Microdosimetrie ; Carbon ion therapy ; secondary radiation |
| Zusammenfassung | The ambient dose equivalent from the secondary radiation produced during irradiation of a cylindrical water phantom with 200 MeV/u 12C-ions was investigated at the biophysics cave at GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. Pencil-like ion beams were delivered by the heavy-ion synchrotron SIS18 using the slow extraction mode. Since the secondary radiation field outside the phantom is complex in its particle composition and particle energy distribution, microdosimetric methods developed for the dosimetry of the cosmic radiation field at flight altitudes, which is similar in terms of complexity, were applied. Lineal energy distributions and the ambient dose equivalent were measured with a tissue-equivalent proportional counter at different particle emission angles. An additional veto counter allowed the identification of the different contributions of charged and neutral particles. A significant increase in the mean quality factor was observed at large emission angles which could be attributed tot he decreasing contributions of charged particles compared to the (relative) contributions from neutrons. |
Zitierung
Wissmann, F., Giesen, U., Klages, T., Schardt, D., Martino, G., & Sunil, C. (2010). Microdosimetric measurements in the secondary radiation field produced in ¹²C-therapy irradiations. Radiation and Environmental Biophysics, 49(3), 331–336. https://doi.org/10.1007/s00411-010-0279-z