Lifetime Measurement of Highly Charged Ions Relevant to Astrophysics

Authors

  • Ranjeet K. Karn Department of Physics, Jam. Co-operative College, Jamshedpur 831036
  • C. N. Mishra Department of Physics, Kolhan University, Chaibasa 833201
  • Nissar Ahmad Department of Physics, University of Kashmir, Sri Nagar 190006
  • C. P. Safvan Inter University Accelerator Centre, New Delhi 110067
  • T. Nandi Inter University Accelerator Centre, New Delhi 110067

DOI:

https://doi.org/10.26713/jamcnp.v2i2.334

Keywords:

X-rays, atomic data, Atomic processes, Line, formation

Abstract

We have measured the \(\rm 1s2s2p ~^4P^0_{5/2}\)-\(\rm 1s^22s~^2S_{1/2}\) magnetic quadrupole X-ray transition energy in Li-like Fe along with the \(\rm 1s2s~^3S_1\)-\(\rm 1s^2~^1S_0\) transition energy in He-like Fe using multi channel doppler tuned spectrometer. These states have been produced through the interaction of 165 MeV Fe\(^{12+}\) ion beam with 100 \(\mu\)g/cm\(^2\) thin carbon foil. Further we have measured the lifetime of \(\rm 1s2s2p ~^4P^0_{5/2}\) level in Li-like Fe. The measured transition energy of \(\rm 1s2s~^3S_1\)-\(\rm 1s^2~^1S_0\) is in good agreement with the available theoretical predictions and experimental measurements, whereas the measurement of \(\rm 1s2s2p ~^4P^0_{5/2}\)-\(\rm 1s^22s~^2S_{1/2}\) energy is little lower than the theoretical estimations. However, the measured lifetime of \(\rm 1s2s2p ~^4P^0_{5/2}\) level compares well with the theoretical predictions.

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Published

2015-12-20
CITATION

How to Cite

Karn, R. K., Mishra, C. N., Ahmad, N., Safvan, C. P., & Nandi, T. (2015). Lifetime Measurement of Highly Charged Ions Relevant to Astrophysics. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 2(2), 127–132. https://doi.org/10.26713/jamcnp.v2i2.334

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Research Article