L. H. Thomas , phys. Rev. , 54 , 580 ( 1938 ).

D. W. Kerst et al .， Phys. Rev. , 98 , 1153 ( 1955 ).

J. C. Clark et al ., Nucleonics , 25 , 6 , 54 ( 1967 ).

F. G. Resmini , 7th Int. Conf. on Cyclotrons and their Applications , 1975 ,p 19 .

G. T. Seaborg , Isot. Radiat. Technol. , 4 , 13 ( 1966 ).

M. S. Livingston , J. Appl. Phys. , 15 , 128 ( 1944 ).

F. S. Houch and J. M. Miller , Phys. Rev. , 123 , 231 ( 1961 ).

J. W. Meadows , ibid , 91 , 885 ( 1953 ).

R. S. Stone and J. C. Larkin , Radiology , 39 , 608 ( 1942 ).

R. S. Stone , Amer. J. Roentgenol. , 59 , 771 ( 1948 ).

M. Catterall et al .， Brit. J. Radiology , 44 , 603 ( 1971 ).

G. T. Batra et al .， Nucl. Inst. Methods , 100 , 135 ( 1972 ).

J. P. Meulders and A. Wambersie , 7th Int. Conf. on Cyclotrons and their Applications , 1975 ,p 431 .

M. A. Chaudhri et al ., Eur. J. Cancer , 10 , 260 ( 1974 ).

M. A. Chaudhri et al ., IEEE Transactions on Nuclear Science , 26 , 2 , 2287 ( 1979 ).

M. A. Chaudhri and G. T. Batra , Int. Conf. on the Use of Cyclotrons in Chemistry , Metallurgy and Biology , Oxford , 1969 ,p. 1 .

李民乾 等 ， 核技术 ， 2 , 1 ( 1979 ).

C. H. Checunt et al .， Proceeding of the 6th Int. Cyclotron Conf .， Vancouver , Canada , 1972 ,p 646 .