Theoretical and Experimental Radiation Effectiveness of the Free Radical Dosimeter Alanine to Irradiation with Heavy Charged Particles

The response of the alanine detector after charged-particle and neutron irradiations

“…Values of E 0 = 1.17 × 10 5 Gy, 1.10 × 10 5 Gy, 7.5 × 10 4 Gy, and 1.05 × 10 5 Gy were found by Snipes andHoran (1967), Hermann (1978), Waligórski et al (1981), Hansen and Olsen (1985) and Hansen (1984), respectively. This last value is probably the most accurate.…”

“…Hansen and Olsen (1984) have chosen a different way of calculating the activation cross-section and used another algorithm describing the radial distribution of dose of track structure theory. Their theoretical calculations fit their experimental results (Hansen and Olsen, 1985;Hansen, 1984;Hansen et al, 1987).…”

“…Except for data of Hansen and Olsen (1985), Hansen et al (1987), and of Hermann (1978), which have been reported in a form directly applicable for comparison with model calculations, values of ex- * E 0 = 1.05 × 10 5 Gy, a 0 = 2.0 nm, τ → τ/2 (see text and Appendix). † E 0 = 7.5 × 10 4 Gy, a 0 = 0.5 nm.…”

“…We have arbitrarily assumed the relative accuracy of the obtained data points to be 20% for the proton data and 10% for the remaining data points, except when reported (Hansen and Olsen, 1985;Hansen et al, 1987), and we list the respective absolute errors with each extracted data point in Table 1. The values of relative effectiveness extracted from the paper of Bradshaw et al (1962) for 5 and 7.7 MeV protons (RE = 0.23, and RE = 0.49, respectively) were rejected as being inconsistent with adjacent data reported in their paper.…”

“…), lighter ions of lower energies, and neutrons, has been measured by several authors. (Ebert et al, 1965;Henriksen, 1966;Mueller et al, 1964;Simmons and Bewley, 1976;Bermann, 1978;Katz and Bermann, 1976;Deffner and Regulla, 1980;Regulla and Deffner, 1982;Waligórski et al, 1981;Hansen and Olsen, 1985;Hansen, 1984;Hansen et al, 1987;Katsumura et al, 1986;Waligórski et al, 1987a).…”