Highly sensitive Mössbauer spectrometer for SEDM and RSMR investigations

An improved selective excitation double Mössbauer spectrometer

“…[3][4][5][6] Others have used expensive CAMAC technology to solve the transducer synchronization problem. 7 The second requirement is efficient detection of the scattered radiation from the sample. An early SEDM equipment used a single-line Na 4 Fe͑CN͒ 6 •10H 2 O absorber attached to the CAD with a standard proportional counter behind it.…”

Radioactivity Control of Composite Materials Using Low Energy Photon Radiation

“…The methods that are based on the registration of RSMR are characterized by the relatively low intensity of the beam of secondary radiation that carries the information. Therefore, use of radiation sources of big energy or bigger duration of measurement time, is required (Semenov, Irkaev et al 1995). These restrictions can be overridden with the creation of new types of high sensitivity detectors, among which the Combined Scintillation Resonance Detectors are distinguished, that unify the positives of various types of scintillation detectors and allow us to avoid the difficulties of multi-detector systems, difficulties that are related to their problem of inter-stabilization .…”

“…20) (θ ≤ 16 ο ) (Manninen and Koikkalainen 1984;Duvauchelle, Peix et al 1999). More prospects for the registration of RSMR seem to have the Scintillation Resonance Detectors -SRD (Mitrofanov, Gor'kov et al 1978;Athanassiadis 1994;Semenov, Irkaev et al 1995), which allow us to register relatively very small changes in energy during the Doppler modulation of energy. Therefore, the application of the RSMR method allows us to ignore the necessity of resonance nucleus existence in the samples such as to have the ability to investigate materials, free from Mossbauer resonance nucleus, with precision that is achieved with methods of NGR (~ 10 -8 -10 -9 eV) (Zolotoyabko and Iolin 1986;Athanassiadis 1994).…”