Contribution of secondary particles to the dose in 12C radiotherapy and other heavy ion beams
| Autor: | Iva Jadrnickova, A. G. Molokanov, František Spurný |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Nuclear reaction
Materials science Ion beam Linear energy transfer Heavy Ion Radiotherapy Models Biological Sensitivity and Specificity Ion Radiation Protection Radiation Monitoring Humans Computer Simulation Linear Energy Transfer Radiology Nuclear Medicine and imaging Neutron Carbon Radioisotopes Neutrons Range (particle radiation) Radiation Radiological and Ultrasound Technology Radiotherapy Planning Computer-Assisted Public Health Environmental and Occupational Health Reproducibility of Results Radiotherapy Dosage General Medicine Absorbed dose Atomic physics |
| Zdroj: | Radiation Protection Dosimetry. 126:657-659 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncm133 |
| Popis: | The results of experimental studies performed in a radiotherapy (12)C ion beam with a nominal energy of 500 MeV/amu and in (16)O and (56)Fe ion beams with a nominal energy of 1 GeV/amu have been described. Linear energy transfer (LET) spectra have been established by means of an LET spectrometer based on a chemically etched track detector, and the measured results were also compared with theoretical calculations obtained using the program Stopping and Range of Ions in Matter (SRIM). It was observed that with increasing depth in a beam, the LET spectra are shifted towards higher values of LET; one can also observe an important widening of the spectra along the range, as well as an increasing amount of nuclear reaction products and/or of fragments in the spectra. The relative contribution of these secondary particles to the total absorbed dose was assessed. |
| Databáze: | OpenAIRE |
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