title: A COLLIMATOR FOR SCANNING WITH LOW-ENERGY PHOTONS.
mesh_terms: D002587:Cesium Isotopes; D004864:Equipment and Supplies; D017785:Photons; D011868:Radioisotopes; D011871:Radiology; D011877:Radionuclide Imaging; D013679:Technology, Radiologic
chemical_list: D002587:Cesium Isotopes; D011868:Radioisotopes
keywords: CESIUM ISOTOPES; EQUIPMENT AND SUPPLIES; RADIOISOTOPE SCANNING; TECHNOLOGY, RADIOLOGIC