Introduction

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Duggan M. J. (unpublished) National Radiological Protection Board, Harwell.

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ICRU Report 13 (1969) Neutron fluence, neutron spectra, and kerma. Washington, D.C., International Commission on Radiation Units and Measurements.

ICRU Report 16 (1970) Linear energy transfer. Washington, D.C., International Commission on Radiation Units and Measurements.

ICRU Report 19 (1971) Radiation quantities and units. Washington, D.C., International Commission on Radiation Units and Measurements.

Irving D. C. Alsmiller R. G. Jr. Moran H. S. (1967) Tissue current-to-dose conversion factors for neutrons with energies from 0.5 to 60 MeV. ORNL-4032. Tennessee, Oak Ridge National Laboratory.

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Kaye G. W. C. Binks W. Bell G. E. (1938) The x-ray and gamma-ray protective values of building materials. Br. J. Radiol. 11, 676–685.

Kennedy R. J. Wyckoff H. O. Snyder W. A. (1950) Concrete as a protective barrier for gamma rays from Cobalt-60. J. Res. natn. Bur. Stand. 44, 157–162.

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Kirn F. S. Kennedy R. J. Wyckoff H. O. (1954) The attenuation of gamma rays at oblique incidence. Radiology, 63, 94–104.

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