Radionuclide depth profiles in Dhajala chondrite

作者: M B Potdar , N Bhandari , K M Suthar

DOI: 10.1007/BF02871862

关键词:

摘要: Spallation produced radionuclides10Be,22Na and26Al and low energy neutron capture radionuclide60Co have been measured in several fragments of the Dhajala chondrite, their shielding depth space having established by measurement cosmic ray track density. These data enable us to obtain profiles production rates these nuclides within meteoroid body. are discussed terms dependence on size variations galactic fluxes time space. The slowing down density neutrons 0.1 neutrons/cm3 sec is determined near centre based on60Co.

参考文章(24)
D Lal, J R Trivedi, Observations on the spatial distribution of Dhajala meteorite fragments in the strewnfield Proceedings of the Indian Academy of Sciences - Section A. ,vol. 86, pp. 393- 407 ,(1977) , 10.1007/BF03046854
N. Bhandari, D. Lal, R.S. Rajan, J.R. Arnold, K. Marti, C.B. Moore, Atmospheric ablation in meteorites: A study based on cosmic ray tracks and neon isotopes Nuclear Tracks. ,vol. 4, pp. 213- 262 ,(1980) , 10.1016/0191-278X(80)90037-2
R. J. Wright, L. A. Simms, M. A. Reynolds, D. D. Bogard, Depth variation of cosmogenic noble gases in the ∼120-kg Keyes chondrite Journal of Geophysical Research. ,vol. 78, pp. 1308- 1318 ,(1973) , 10.1029/JB078I008P01308
N. Bhandari, M.B. Potdar, Cosmogenic21Ne and22Ne depth profiles in chondrites Earth and Planetary Science Letters. ,vol. 58, pp. 116- 128 ,(1982) , 10.1016/0012-821X(82)90107-8
S.K. Bhattacharya, M. Imamura, N. Sinha, N. Bhandari, Depth and size dependence of 53Mn activity in chondrites Earth and Planetary Science Letters. ,vol. 51, pp. 45- 57 ,(1980) , 10.1016/0012-821X(80)90256-3
R LINGENFELTER, E CANFIELD, V HAMPEL, The lunar neutron flux revisited Earth and Planetary Science Letters. ,vol. 16, pp. 355- 369 ,(1972) , 10.1016/0012-821X(72)90153-7
O.A. Schaeffer, K. Nagel, H. Fechtig, G. Neukum, Space erosion of meteorites and the secular variation of cosmic rays (over 109 years) Planetary and Space Science. ,vol. 29, pp. 1109- 1118 ,(1981) , 10.1016/0032-0633(81)90010-6
N. Bhandari, D. Lal, J.R. Trivedi, A. Bhatnagar, The Dhajala Meteorite Shower Meteoritics. ,vol. 11, pp. 137- 147 ,(1976) , 10.1111/J.1945-5100.1976.TB00160.X
S. K. Bhattacharya, J. N. Goswami, D. Lal, Semiempirical rates of formation of cosmic-ray tracks in spherical objects exposed in space: preatmospheric and postatmospheric depth profiles Journal of Geophysical Research. ,vol. 78, pp. 8356- 8363 ,(1973) , 10.1029/JA078I034P08356
C. Bagolia, N. Doshi, S.K. Gupta, S. Kumar, D. Lal, J.R. Trivedi, The Dhajala meteorite shower: Atmospheric fragmentation and ablation based on cosmic ray track studies Nuclear Track Detection. ,vol. 1, pp. 83- 92 ,(1977) , 10.1016/0145-224X(77)90001-1