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Theory of Radiation Chemistry. II. Track Effects in Radiolysis of Water
1.J. L. Magee, J. Am. Chem. Soc. 73, 3270 (1951).
2.D. E. Lea, Actions of Radiations on Living Cells (Cambridge University Press, Cambridge, 1947), pp. 1–68.
3.Our term “spur” corresponds to the “cluster” in the terminology of E. Kara‐Michailova and D. E. Lea, Proc. Cambridge Phil. Soc. 36, 101 (1940).
3.We have preferred to use the term “spur” in order to avoid confusion with the cluster theory of Lind, The Chemical Effects of Alpha‐Particles and Electrons (Reinhold Publishing Company, New York, 1935).
3.The term also corresponds to the “hot spot” of Allen, Disc. Faraday Soc. 12, 79 (1952),
3.but not to the “hot spot” term used by that author in Allen, J. Phys. Colloid Chem. 52, 479 (1948).
4.J. Weiss, Nature 153, 748 (1944).
5.A. O. Allen, J. Phys. Colloid Chem. 52, 479 (1948).
6.E. J. Hart, J. Phys. Chem. 56, 594 (1952).
7.C. J. Hochanadel, J. Phys. Chem. 56, 587 (1952).
8.Allen, Hochanadel, Ghormley, and Davis, J. Phys. Chem. 56, 575 (1952).
9.A qualitative description along the same lines has already been given by A. O. Allen, Disc. Faraday Soc. 12, 79 (1952).
10.See, for instance, M. Haïssinsky, and M. Lefort, Compt. Rend. 230, 1156 (1950).
11.C. T. R. Wilson, Proc. Roy. Soc. London A104, 192 (1923).
11.See also W. J. Beekman, Physica 15, 327 (1949).
12.This value is rather lower than the average number of ion pairs per primary ionization in the gas phase. If a function is chosen which gives a higher value of this average, the result will, in general, be a higher value of for a given value of x. The lower average was chosen because it seemed to accord with the larger number of small spurs which would be expected in the liquid phase, where the effective ionization potential is lowered. In this connection it should be mentioned that the value of is not very sensitive to the actual spur size distribution function as long as a constant average number of radical pairs per spur is maintained.
13.This formula is derived from the requirement that where ν is the number of tracks falling on of the medium, is the final volume, and the lifetime of a track of length Z.
14.E. Brüche, Ann. Physik 1, 93 (1929).
15.V. A. Bailey and W. E. Duncansson, Phil. Mag. , 10, 145 (1930).
16.L. Onsager, Phys. Rev. 54, 554 (1938).
17.M. F. Skinker, Phil. Mag. 44, 994 (1922).
18.M. F. Skinker and J. V. White, Phil. Mag. 46, 630 (1923).
19.H. S. W. Massey and E. H. S. Burhop, Electronic and Ionic Impact Phenomena (Clarendon Press, Oxford, 1952), p. 279.
20.Sir J. Townsend, Electrons in Gases (Hutchinson, London, 1947).
21.J. L. Magee and M. Burton, J. Am. Chem. Soc. 73, 523 (1951).
22.Burton, Magee, and Samuel, J. Chem. Phys. 20, 760 (1952).
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