title: Thermal diffusion of 57Co into rhodium matrix as a second step in preparing Mössbauer sources.
abstract: Thermal diffusion of (57)Co into rhodium matrix was studied. The diffusion degree was evaluated by Mössbauer spectroscopy with the use of α-Fe absorber. The influence of different annealing conditions was investigated. For a set of sources examined, smooth and rounded Lorentzian lines were observed. The main spectra parameters are fairly acceptable with respect to the typical obtainable values for α-Fe absorbers in Mössbauer spectroscopy. The results obtained confirm that the deposited (57)Co diffused almost completely into rhodium matrix without substantial loss of the activity deposited.
authors.affiliation: Institute of Atomic Energy Polatom, Radioisotope Centre, Otwock-Świerk, Poland.
authors.forename: Izabela
authors.initials: I
authors.lastname: Cieszykowska
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Zółtowska
authors.forename: Piotr
authors.initials: P
authors.lastname: Zachariasz
authors.forename: Andrzej
authors.initials: A
authors.lastname: Piasecki
authors.forename: Tomasz
authors.initials: T
authors.lastname: Janiak
authors.forename: Mieczysław
authors.initials: M
authors.lastname: Mielcarski