L. Dep, D. Elmore, Purdue University

J. Fabryka-Martin, J. Masarik, R.C. Reedy, Los Almos National Lab

Nuclear Instruments and Methods 92 (1994) 321-325

A model is presented to investigate the systematics of in-situ low-energy neutron-capture-produced cosmogenic nuclides in terrestrial rocks, in particular 35Cl(n,gamma)36Cl, by using a Monte Carlo neutron transport code. The model is validated by comparison of its results with experimental measurements of low-energy cosmogenic neutrons on the Earth's surface. The dependence of 36C1 production on the elemental composition and water content of rocks has been determined.