Effect of Dense Plasma Environment on the Spectroscopic Properties of He-like Ca18+ Ion

Authors

  • Dishu Dawra Department of Physics and Astrophysics, University of Delhi, Delhi 110007
  • Mayank Dimri Department of Physics, Deen Dayal Upadhyaya College, University of Delhi, Delhi 110078; Department of Physics and Astrophysics, University of Delhi, Delhi 110007
  • Avnindra Kumar Singh Department of Physics, Deen Dayal Upadhyaya College, University of Delhi, Delhi 110078; Department of Physics and Astrophysics, University of Delhi, Delhi 110007
  • Alok Kumar Singh Jha Department of Physics, Kirori Mal College, University of Delhi, Delhi 110007
  • Shougaijm Somorendro Singh Department of Physics and Astrophysics, University of Delhi, Delhi 110007

DOI:

https://doi.org/10.26713/jamcnp.v6i3.1295

Keywords:

Strongly coupled plasma, Atomic structure, Radiative properties

Abstract

Plasma shielding effects on the energy levels and radiative properties of He-like Ca18+ ion under dense plasma conditions have been studied. For this purpose, the multiconfiguration Dirac-Fock method has been implemented by incorporating the ion sphere model potential as a modified interaction potential between the electron and the nucleus. To check the authenticity of our results, independent calculations have been performed using the modified relativistic configuration interaction method. It is observed that the transition energies associated with Δn=0 transitions are blue shifted, whereas red shifted for Δn≠0 transitions. The variation in transition probabilities and weighted oscillator strengths with plasma densities has also been analyzed. The present results should be beneficial in the plasma modeling and fusion plasma research applications.

Downloads

References

M. S. Murillo, J. Weisheit, S. B. Hansen and M. Dharma Wardana, Phys. Rev. E 87, 063113 (2013), DOI: 10.1103/PhysRevE.87.063113.

B. Saha and S. Fritzsche, J. Phys. B: At. Mol. Opt. Phys. 40, 259 (2007), DOI: 10.1088/0953-4075/40/2/002.

M. Nantel, G. Ma, S. Gu, C. Y. Cote, J. Itatani and D. Umstadter, Phys. Rev. Lett. 80, 4442 (1998), DOI: 10.1103/PhysRevLett.80.4442.

S. Skupsky, Phys. Rev. A 21, 1316 (1980), DOI: 10.1103/PhysRevA.21.1316.

S. Ichimaru, Rev. Mod. Phys. 54, 1017 (1982), DOI: 10.1103/RevModPhys.54.1017.

M. S. Murillo and J. C. Weisheit, Phys. Rep. 302, 1 (1998), DOI: 10.1016/S0370-1573(98)00017-9.

A. Sil and P. Mukherjee, Int. J. Quantum Chem. 106, 465 (2006), DOI: 10.1002/qua.20733.

A. Sil, J. Anton, S. Fritzsche, P. Mukherjee and B. Fricke, Eur. Phys. J. D 55, 645 (2009), DOI: 10.1140/epjd/e2009-00258-6.

X. Li, Z. Xu and F. Rosmej, J. Phys. B: At. Mol. Opt. Phys. 39, 3373 (2006), DOI: 10.1088/0953-4075/39/16/019.

R. Rodriguez, J. M. Gil and R. Florido, Phys. Scr. 76, 418 (2007), DOI: 10.1088/0031-8949/76/5/002.

S. Bhattacharyya, J. Saha and T. Mukherjee, Phys. Rev. A 91, 042515 (2015), DOI: 10.1103/Phys-RevA.91.042515.

M. Belkhiri, C. J. Fontes and M. Poirier, Phys. Rev. A 92, 032501 (2015), DOI: 10.1103/Phys-RevA.92.032501.

X.-F. Li, G. Jiang, H.-B.Wang, M.Wu and Q. Sun, Phys. Scr. 92, 075401 (2017), DOI: 10.1088/1402-4896/aa7000.

X.-F. Li and G. Jiang, Chin. Phys. B 27, 073101 (2018), DOI: 10.1088/1674-1056/27/7/073101.

Z. B. Chen, K. Ma, Y. L. Ma and K. Wang, Phys. Plasmas 26, 082101 (2019), DOI: 10.1063/1.5100850.

Z.-B. Chen, J. Quant. Spectrosc. Radiat. Transf. 237, 106615 (2019).

Z.-B. Chen, J. Electron Spectros. Relat. Phenomena 237, 146894 (2019), DOI: 10.1016/j.elspec.2019.146894.

Z.-B. Chen, K. Wang, K. Ma and F. Hu, J. Quant. Spectrosc. Radiat. Transf. 236, 106584 (2019), DOI: 10.1016/j.jqsrt.2019.106584.

Z.-B. Chen, Radiat. Phys. Chem. 166, 108508 (2020), DOI: 10.1016/j.radphyschem.2019.108508.

K. M. Aggarwal and F. P. Keenan, Phys. Scr. 85, 025306 (2012), DOI: 10.1088/0031-8949/85/02/025306.

P. H. Norrington, http://amdpp.phys.strath.ac.uk/UKAPAP/codes.html.

I. Grant, J. McKenzie, P. Norrington, M. Mayers and N. Pyper, Comput. Phys. Commun. 21, 207 (1980), DOI: 10.1016/0010-4655(80)90041-7.

A. Singh, D. Dawra, M. Dimri, A. K. Jha and M. Mohan, Phys. Plasmas 26, 062704 (2019), DOI: 10.1063/1.5100565.

A. Singh, M. Dimri, D. Dawra, A. K. Jha, N. Verma and M. Mohan, Radiat. Phys. Chem. 156, 174 (2019), DOI: 10.1016/j.radphyschem.2018.11.002.

A. Singh, M. Dimri, D. Dawra, A. K. Jha and M. Mohan, Can. J. Phys. 97, 436 (2019), DOI: 10.1139/cjp-2018-0218.

M. F. Gu, Can. J. Phys. 86, 675 (2008), DOI: 10.1139/p07-197.

A. Kramida, Yu. Ralchenko, J. Reader and NIST ASD Team, NIST Atomic Spectra Database (ver. 5.6.1), [Online], available: https://physics.nist.gov/asd [2019, June 20]. National Institute of Standards and Technology, Gaithersburg, MD. (2018).

Downloads

Published

2019-12-31
CITATION

How to Cite

Dawra, D., Dimri, M., Singh, A. K., Jha, A. K. S., & Singh, S. S. (2019). Effect of Dense Plasma Environment on the Spectroscopic Properties of He-like Ca18+ Ion. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 6(3), 103–113. https://doi.org/10.26713/jamcnp.v6i3.1295

Issue

Vol. 6 No. 3 (2019)

Section

Research Article

License

Authors who publish with this journal agree to the following terms:
  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a CCAL that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.