title: Radioactive check device for ionization chambers.
authors.affiliation: Roswell Park Cancer Institute, Department of Radiation Medicine, Buffalo, New York, USA.
authors.forename: C N
authors.initials: CN
authors.lastname: de Souza
authors.forename: C H
authors.initials: CH
authors.lastname: Sibata
authors.forename: K H
authors.initials: KH
authors.lastname: Shin
mesh_terms: D002588:Cesium Radioisotopes; D004867:Equipment Design; D006801:Humans; D011878:Radiotherapy / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D011879:Radiotherapy Dosage; D015203:Reproducibility of Results; D013324:Strontium; D013997:Time Factors
chemical_list: D002588:Cesium Radioisotopes; D013324:Strontium