Special-purpose slide rules as exemplified by a rule for maintaining a constant exposure in successive autoradiographs with iodine-131.
D001345:Autoradiography; D007455:Iodine; D007456:Iodine Isotopes; D011868:Radioisotopes
D007456:Iodine Isotopes; D011868:Radioisotopes; D007455:Iodine
IODINE ISOTOPES; RADIOAUTOGRAPHY