A multiple-diaphragm system for a cesium 137 unit.
D002586:Cesium; D002588:Cesium Radioisotopes; D003964:Diaphragm; D004864:Equipment and Supplies; D011878:Radiotherapy / Q000600:supply & distribution*
D002588:Cesium Radioisotopes; D002586:Cesium
CESIUM/radioactive; RADIOTHERAPY/equipment and supplies