4Soares CG, Vynckier S, Jarvinen H, et al. Dosimetry of be-ta-ray ophthalmic applicators: Comparison of different measure-ment methods. Med Phys, 2001, 28 (7): 1373-1384.
5Simpkin DJ, Rockwell MT. ESG4 Monte Carlo determination ofthe beta dose kernel in water. Med Phys, 1990, 17 (2):179-186.
6Cross WG, Hokkanen J, Jarvinen H, et al. Calculation of be-ta-ray dose distributions from ophthalmic applicators and com-parison with measurements in a model eye. Med Phys, 2001,28 (7): 1385-1396.
7Kwok CS, Irfan W, Woo MK, et al. Effect of tissue inhomo-geneity on beta dose distribution of 32p. Med Phys, 1987, 14(1): 98-104.