1. Calhoun, J.M., 1987. Radioactivity Calibrations with the ‘4π’ Gamma Ionization Chamber and other Radioactivity Calibration Capabilities. NBS Special Publication 250-10, US Government Printing Office, Washington, DC.
2. Capintec, Inc., 1986. Radioisotope Calibrator Owner's Manual, Rev. E.
3. Cessna, J.T., Zimmerman, B.E., 2001. The effect of alkaline sample solutions on the stability of liquid scintillation cocktails prepared with commercially available scintillants: assays of 188W, Radiocarbon, in press.
4. Coursey, B.M., Calhoun, J.M., Cessna, J.T., Hoppes, D.D., Schima, F.J., Unterweger, M.P., Golas, D.B., Callahan, A.P., Mirzadeh, S., Knapp, F.F., 1990. Assay of the eluent from the alumina-based tungsten-188-rhenium-188 generator. Radioact. Radiochem. (3) 38–49.
5. Standardization of carbon-14 by 4πβ liquid scintillation efficiency tracing with hydrogen-3;Coursey;Appl. Radiat. Isot.,1986