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A comparison of calculated and measured W values in tissue-equivalent gas mixtures


Krajcar Bronić, Ines; Srdoč, Dušan
A comparison of calculated and measured W values in tissue-equivalent gas mixtures // Radiation research, 137 (1994), 1; 18-24 doi:10.2307/3578786 (međunarodna recenzija, članak, znanstveni)


Naslov
A comparison of calculated and measured W values in tissue-equivalent gas mixtures

Autori
Krajcar Bronić, Ines ; Srdoč, Dušan

Izvornik
Radiation research (0033-7587) 137 (1994), 1; 18-24

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
W value ; TE gas mixtures

Sažetak
We calculated the mean energy required to produce an ion pair (W) in methane-, propane-, and butane-based tissue-equivalent (TE) gas mixtures from W values in pure constituent gases according to various model for energy partition among gas components. We found an agreement between the experimental and calculated W values in the methane-based TE gas regardless of the model concept. In contrast, only those models which take into account differences in the stopping powers, total ionization cross sections and model constants of gas components give acceptable results for the propane-based TE gas. The calculated W value for high-energy electrons in isobutane-based TE gas mixture is 25.2 eV and for 5 MeV alpha-particles it is 28.0 eV.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
1-07-064

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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