Pramana

, Volume 85, Issue 3, pp 395–402 | Cite as

Spectroscopy of fission fragments using prompt-delayed coincidence technique

Article
First Online:

Abstract

The time-stamp structure of the digital data acquisition system of the Indian National Gamma Array (INGA) has been utilized to carry out prompt-delayed coincidence technique for the spectroscopic study of fission fragments. This technique was found to be useful to determine the states above the long-lived isomer (with half-life up to ∼5 μs), present in the fission fragments. The angular correlation of γ-rays, emitted by the fission fragments, has also been used in the present INGA geometry to determine the spins of the de-exciting states.

Keywords

Prompt-delayed coincidence angular correlation. 

PACS Nos

25.70.Jj 24.75.+i 25.85.Ge 29.30.Kv 23.20.En 
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Notes

Acknowledgements

The authors would like to thank the members of INGA Principal Investigating Coordination Committee and the INGA Collaboration for making the detectors available. The contributions of S Saha, J Sethi, Purnima Singh, D Choudhury, D C Biswas, S Mukhopadhay, L S Danu, S K Tandel and S Hota in the present work are acknowledged. Authors also acknowledge the IUAC group for providing some of the HV units for the clover detectors. This work was partially funded by the Department of Science and Technology, Government of India (No. IR /S2 /PF-03 /2003-II). The authors are also thankful to the Pelletron and LINAC staff for providing excellent beam during the experiment.

References

  1. [1]
    N Rather et al, Phys. Rev. Lett. 112, 202503 (2014)Google Scholar
  2. [2]
    J Sethi et al, Phys. Lett. B 725, 85 (2013)Google Scholar
  3. [3]
    S Rajbanshi et al, Phys. Rev. C 90, 024318 (2014)Google Scholar
  4. [4]
    D Choudhury et al, Phys. Rev. C 87, 034304 (2013)Google Scholar
  5. [5]
    S Saha et al, Phys. Rev. C 89, 044315 (2014)Google Scholar
  6. [6]
    P Singh et al, Phys. Rev. C 90, 014306 (2014)Google Scholar
  7. [7]
    S Mukhopadhay et al, Phys. Lett. B (2014) (in press)Google Scholar
  8. [8]
    S K Tandel et al, Phys. Rev. C 87, 034319 (2013)Google Scholar
  9. [9]
    G S Simpson et al, Phys. Rev. Lett. 113, 132502 (2014)Google Scholar
  10. [10]
    P J Nolan et al, Nucl. Instrum. Methods A 236, 95 (1985)Google Scholar
  11. [11]
    G Duchene et al, Nucl. Instrum. Methods A 432, 90 (1999)Google Scholar
  12. [12]
    R Palit et al, Nucl. Instrum. Methods A 680, 90 (2012)Google Scholar
  13. [13]
    D Radford, Nucl. Instrum. Methods A 361, 297 (1995)Google Scholar
  14. [14]
    H Hua et al, Phys. Rev. C 69, 014317 (2004)Google Scholar
  15. [15]
    L S Danu et al, Phys. Rev. C 81, 014311 (2010)Google Scholar
  16. [16]
    A Bogachev et al, Eur. Phys. J. A 34, 23 (2007)Google Scholar
  17. [17]
  18. [18]
    M A Jones et al, Rev. Sci. Instrum. 69, 12 (1998)Google Scholar
  19. [19]
    P J Daly et al, Phys. Rev. C 59, 3066 (1999)Google Scholar
  20. [20]
    S H Liu et al, Phys. Rev. C 80, 044314 (2009)Google Scholar
  21. [21]
    A Astier et al, Eur. Phys. J. A 50, 2 (2014)Google Scholar
  22. [22]
    J Genevey et al, Phys. Rev. C 63, 054315 (2001)Google Scholar

Copyright information

© Indian Academy of Sciences 2015

Authors and Affiliations

  1. 1.Department of Nuclear and Atomic PhysicsTata Institute of Fundamental ResearchMumbaiIndia

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