TY - GEN AU - Popovic,S AU - Mallard,J R TI - The longitudinal and lateral response of multichannel focusing collimators SN - 0020-708X PY - 1968///0709 KW - Iodine Isotopes KW - Radiation Monitoring KW - instrumentation N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/0020-708x(68)90174-9 ER -