6533b85dfe1ef96bd12bea21
RESEARCH PRODUCT
Determination of absolute internal conversion coefficients using the SAGE spectrometer
Juha SorriC. J. BartonD. G. JenkinsMikael SandzeliusP. J. DaviesJuha UusitaloR-d HerzbergPhilippos PapadakisPaul GreenleesJoonas KonkiKalle AuranenDaniel CoxDaniel CoxPanu RahkilaJari PartanenJanne PakarinenJames Smallcombesubject
Nuclear and High Energy Physicselectron spectroscopy01 natural sciencesParticle detectorInternal conversionOptics0103 physical sciences010306 general physicsInternal conversion coefficientInstrumentationsilicon detectorbackground subtractionenergy reconstructionPhysicsBackground subtractionSpectrometerta114010308 nuclear & particles physicsbusiness.industry3. Good healthComputational physicsSemiconductor detectorMeasuring instrumentbusinessRadioactive decayinternal conversion coefficientdescription
Abstract A non-reference based method to determine internal conversion coefficients using the SAGE spectrometer is carried out for transitions in the nuclei of 154 Sm, 152 Sm and 166 Yb. The Normalised-Peak-to-Gamma method is in general an efficient tool to extract internal conversion coefficients. However, in many cases the required well-known reference transitions are not available. The data analysis steps required to determine absolute internal conversion coefficients with the SAGE spectrometer are presented. In addition, several background suppression methods are introduced and an example of how ancillary detectors can be used to select specific reaction products is given. The results obtained for ground-state band E2 transitions show that the absolute internal conversion coefficients can be extracted using the methods described with a reasonable accuracy. In some cases of less intense transitions only an upper limit for the internal conversion coefficient could be given.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |