HARRIS, C C A COLLIMATOR FOR SCANNING WITH LOW-ENERGY PHOTONS. [electronic resource] - Journal of nuclear medicine : official publication, Society of Nuclear Medicine Sep 1964 - 653-6 p. digital Publication Type: Journal Article ISSN: 0161-5505 Subjects--Topical Terms: Cesium IsotopesEquipment and SuppliesPhotonsRadioisotopesRadiologyRadionuclide ImagingTechnology, Radiologic