title: Test of internal-conversion theory with precise gamma- and X-ray spectroscopy.
abstract: Precise measurements of K-shell internal conversion coefficients (ICCs) are being used to determine the best method for calculating these coefficients. A recent result for the M4 transition from 193Irm has been refined, demonstrating conclusively that the atomic vacancy created by the ejected electron must be properly accounted for in the calculation of ICCs. Measurements of additional cases are discussed.
authors.affiliation: Cyclotron Institute, Texas A&M University, College Station, TX 77843-3366, USA. hardy@comp.tamu.edu
authors.forename: J C
authors.initials: JC
authors.lastname: Hardy
authors.forename: N
authors.initials: N
authors.lastname: Nica
authors.forename: V E
authors.initials: VE
authors.lastname: Iacob
authors.forename: M B
authors.initials: MB
authors.lastname: Trzhaskovskaya
authors.forename: R G
authors.initials: RG
authors.lastname: Helmer
mesh_terms: D003198:Computer Simulation; D017408:Guidelines as Topic; D006207:Half-Life; D008956:Models, Chemical; D009686:Nuclear Physics / Q000379:methods; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis* / Q000592:standards*; D011874:Radiometry / Q000379:methods*; D012015:Reference Standards; D012016:Reference Values; D013051:Spectrometry, Gamma / Q000379:methods*; D013052:Spectrometry, X-Ray Emission / Q000379:methods*
chemical_list: D011868:Radioisotopes