RT Journal Article SR Electronic T1 Energy Absorption in Cylinders Containing a Uniformly Distributed Source JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 179 OP 186 VO 8 IS 3 A1 Widman, J. C. A1 Powsner, E. R. YR 1967 UL http://jnm.snmjournals.org/content/8/3/179.abstract AB