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Atomic Emission Spectroscopy: Overview

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Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
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Spectroscopy of element 115 decay chains.

D Rudolph1, U Forsberg, P Golubev

  • 1Lund University, 22100 Lund, Sweden.

Physical Review Letters
|October 1, 2013
PubMed
Summary
This summary is machine-generated.

Researchers studied alpha decay chains from element 115 using high-resolution spectroscopy. This experiment provides new insights into the nuclear structure of heavy elements and their decay properties.

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Area of Science:

  • Nuclear Physics
  • Atomic Physics
  • Spectroscopy

Background:

  • Superheavy elements (SHEs) are crucial for understanding nuclear stability limits.
  • Previous studies have assigned decay chains to element 115, but detailed spectroscopy was lacking.

Purpose of the Study:

  • To perform high-resolution alpha, x-ray, and gamma-ray coincidence spectroscopy.
  • To derive excitation schemes for isotopes of elements Z>112.
  • To investigate the decay properties of element 115.

Main Methods:

  • Fusion-evaporation reaction: 48Ca + 243Am.
  • Coincidence spectroscopy using alpha, x-ray, and gamma-ray detectors.
  • Comprehensive Monte Carlo simulations for data analysis.

Main Results:

  • Detection of thirty correlated alpha-decay chains.
  • Observations consistent with element Z=115.
  • First-time derivation of precise excitation schemes for isotopes Z>112.

Conclusions:

  • The study provides crucial spectroscopic data for superheavy nuclei.
  • Findings contribute to understanding nuclear structure models for heavy elements.
  • Precise excitation schemes offer new insights into nuclear properties.