Nuclear excitation by electron transition rate confidence interval in a $^{201}$Hg local thermodynamic equilibrium plasma

Abstract : Nuclear excitation by electron transition (NEET) is predicted to be the dominant excitation process of the first ^{201}Hg isomeric state in a laser heated plasma. This process may occur when the energy difference between a nuclear transition and an atomic transition is close to zero, provided the quantum selection rules are fulfilled. At local thermodynamic equilibrium, an average atom model may be used, in a first approach, to evaluate the NEET rate in plasma. The statistical nature of the electronic transition spectrum is then described by the means of a Gaussian distribution around the average atom configuration. However, using a continuous function to describe the electronic spectrum is questionable in the framework of a resonant process, such as NEET. In order to get an idea of when it can be relied upon to predict a NEET rate in plasma, we present in this paper a NEET rate calculation using a model derived from detailed configuration accounting. This calculation allows us to define a confidence interval of the NEET rate around its average atom mean value, which is the first step to design a future experiment.
Document type :
Journal articles
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01284808
Contributor : Pascale Chambon <>
Submitted on : Tuesday, March 8, 2016 - 10:37:11 AM
Last modification on : Monday, October 15, 2018 - 3:46:02 PM

Identifiers

Collections

IN2P3 | CENBG | CEA | DAM

Citation

M. Comet, G. Gosselin, V. Meot, P. Morel, J.-C. Pain, et al.. Nuclear excitation by electron transition rate confidence interval in a $^{201}$Hg local thermodynamic equilibrium plasma. Physical Review C, American Physical Society, 2015, 92, ⟨10.1103/PhysRevC.92.054609⟩. ⟨in2p3-01284808⟩

Share

Metrics

Record views

97