TY - JOUR AU - Peter Volkovitsky AU - P. Naudus C2 - Nuclear Instruments & Methods DA - 2009-07-01 LA - en M1 - 607 PB - Nuclear Instruments & Methods PY - 2009 TI - Absolute Co-60 characterization based on gamma-gamma coincident detection by two Nal(Tl) detectors UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=900199 ER -