Prompt Response Function (PRF) of Lifetime Measurement in the 2+ State of 192Os Nuclei Energy Levels from Triple-Gamma Coincidence Techniques

https://doi.org/10.46481/jnsps.2020.93

Authors

  • Terver Daniel Department of Physics, Faculty of Science, Benue State University, PMB 102119, Makurdi, Nigeria.
  • Stanimir Kisyov Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • Patrick Regan Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • Nicu Marginean Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • Zsolt Podolyak Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • R. Marginean Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • K. Nomura Department of Physics, Faculty of Science, University of Zagreb, Bijenicka Cesta 32, HR-10000 Zagreb, Crotia
  • M. Rudigier Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • R. Mihai Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • V. Werner Institut fur Kernphysik, T.U. Darmstadt, 64289 Darmstadt, Germany
  • R. J. Carroll Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • Laila Gurgi Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • A. Oprea Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • Tom Berry Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • A. Serban Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • C. R. Nita Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • C. Sotty Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • R. Suvaila Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • A. Turturica Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • C. Costache Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • L. Stan Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • A. Olacel Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • M. Boromiza Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • S. Toma Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest, Romania
  • S. J. Gemanam Department of Physics, Benue State University, PMB 102119, Makurdi, Nigeria
  • F. Gbaorun Department of Physics, Benue State University, PMB 102119, Makurdi, Nigeria
  • I. Ochala Department of Physics, Kogi State University, Anyigba, Nigeria
  • E. C. Hemba Department of Physics, Federal College of Education, Pankshin, Plateau State

Keywords:

Prompt response, Full width at half maximum, Lifetime, Scintillators

Abstract

The effective prompt response function full width at half maximum, PRF FWHM of 637 ps (obtained from the prompt gamma pairs of 477 keV and 700 keV associated with the yrast 2+ state in 206Po), and 1007 ps (obtained from the Compton gamma pairs of 189 keV and 237 keV associated with the 192Os(18O,16O)194Os 2 neutron transfer reaction) were used in fitting the time difference spectra obtained from the gamma coincident pairs
of 206 keV and 374 keV in a symmetrised LaBr3(Ce) associated with the gamma transitions in 192Os, using the Half-life program. The values of half-life measured by fitting these PRF FWHM of 637 ps and 1007 ps separately show an excellent agreement of 282(16) ps and 272(21) ps, respectively, which correspond to the global half-life value of 282(4) ps for the 192Os. The mean value of 277(12) ps from these two measurements was used in calculating the B(E2; IL ->IL-2) of 4233(114) e2fm4, which is equivalent to be 81(19) W.u.

Dimensions

W. Gelletly, “Radioactive Ion Beams: A New Window on Atomic Nuclei”, Proceedings of the American Philosophical Society, 145 (2001) 519.

T. Daniel, “Nuclear Structure Studies of Low-lying States in 194Os using Fast-timing Coincidence Gamma-ray Spectroscopy”, Ph.D Thesis Submitted to the University of Surrey, Guildford, UK (2017).

Segre Chart, “Nuclear Structure and Decay Data”, www.metasynthesis.com. Retrieved (2019).

T. Daniel et al., “Review of the nuclear systematics for nuclei 140214”, Journal of the Nigerian Association Of Mathematical Physics 49 (2019) 251.

N. Marginean et al., “In-beam measurements of sub-nanosecond nuclear lifetimes with a mixed array of HPGe and LaBr3:Ce detectors”, Eur. Phys. Journ. A46 (2010) 329.

H. Mach et al., “A Method for Picosecond Lifetime Measurements for Neutron-rich Nuclei”, Nuclear Instruments and Methods in Physcis Research, A280 (1989) 49.

P. J. Nolan and J. F. Sharpey-Schafer, “The measurement of the lifetimes of excited nuclear States”, Reports on Progress in Physics 42 (1979) 1.

C. Mihai et al., “Side Feeding Patterns and Nuclear Lifetime Determinations by the Doppler Shift Attenuation Method in (, n ) Reactions”, Physical Review C81 (2010) 034314.

T. K. Alexander, J.S. Foster, Advances in Nuclear Physics, edited by M. Baranger, E. Vogt, Vol. 10 , 197 (Plenum Press, New York, London, 1978).

B. Olsen and L. Boström, “Numerical Analysis of the Time Spectrum of Delayed Coincidences, II”, Nuclear Instruments and Methods, 44 (1966) 65.

E. Ye Berlovich and V. V. Lukashevich, “On Lifetime Measurements in the Picosecond Range Using Coincidence Technique”, Nuclear Instruments and Methods, 55 (1967) 323.

R. S. Weaver and R. E. Bell, “Method of Evaluating Delayed Coincidence Experiments”, Nuclear Instruments and Methods, 9 (1960) 149.

P. J. R. Mason et al., “Half-life of the I π = 4 − Intruder State in 34P: M2 Transition Strengths Approaching the Island of Inversion”, Physical Review C 85 (2012) 064303.

P. J. R. Mason et al., “Half-life of the Yrast 2+ State in 188W: Evolution of Deformation and Collectivity in Neutron-rich Tungsten Isotopes”, Physical Review C 88 (2013) 044301.

M, Rudigier, “Fast Timing Measurement Using an LaBr 3 (Ce) Scintillator Detector Array Coupled with Gammasphere”, Acta Phys. Pol. B 48 (2017) 351.

P. J. Nolan and J. F. Sharpey-Schafer, “The Measurement of the Lifetimes of Excited Nuclear States”, Reports on Progress in Physics 42 (1979) 1.

H. Mach et al., “A Method for Picosecond Lifetime Measurements for Neutron-rich Nuclei:(1) Outline of the Method” Nuclear Instruments and Methods in Physics Research A 280 (1989) 49.

O. J. Roberts et al., “E3 and M2 Transition Strengths in 209Bi” Physical Review C 93 (2016) 014309.

T. Alharbi et al., “Electromagnetic Transition Rates in the N = 80 Nucleus 138Ce” Physical Review. C 87 (2013) 014323.

D. Bucurescu et al., “The ROSPHERE -ray Spectroscopy Array”, Nuclear Instruments and Methods in Physics Research A 837 (2016) 1.

I. Deloncle et al., “Fast Timing: Lifetime Measurements with LaBr3 Scintillators”, Journal of Physics: Conference Series 205 (2010) 012044.

Lanthanum Bromide Scintillation Detectors, www.LaBr3(Ce) detectors. Retrieved (2016).

E. V. D. van Loef et al., “Scintillation Properties of LaBr3:Ce3+ Crystals: Fast, Efficient and High-energy-resolution Scintillators”, Nuclear Instruments and Methods in Physics Research A486 (2002) 254.

B. Olsen and L. Boström, “Numerical Analysis of the Time Spectrum of Delayed Coincidences, II”, Nuclear Instruments and Methods, 44 (1966) 65.

E. Ye Berlovich and V. V. Lukashevich, “On Lifetime Measurements in the Picosecond Range Using Coincidence Technique”, Nuclear Instruments and Methods, 55 (1967) 323.

R. S. Weaver and R. E. Bell, “Method of Evaluating Delayed Coincidence Experiments”, Nuclear Instruments and Methods, 9 (1960) 149.

H. J. Kim and W. T. Milner, “Short Nuclear Lifetime Measurements via the Pulse Beam Delayed-Coincidence Technique”, Nuclear Instruments and Methods 95 (1971) 429.

E. de Lima et al., “Tests of the Methods of Analysis of Picosecond Life-times and Measurement of the Half-life of the 569.6 keV Level in 207Pb”,Nuclear Instruments and Methods 151 (1978) 221.

T. Alharbi, “Electromagnetic Transition Rates in 34P, 138Ce and 140Nd Using the Fast Timing -Ray Coincidence Technique”, Ph.D Thesis Submitted to the University of Surrey, Guildford, UK (2012).

P. Petkov et al., “Lifetime Determination in Delayed-coincidence Exper-

iments using the Differential Decay-curve Approach”, Nuclear Instruments and Methods in Physics Research, Section A 500 (2003) 379.

T. Daniel et al., “Gamma-ray Spectroscopy of the Low-lying Energy-States Populating the 0.64 ms 13/2+ Isomeric State in 205Po nuclei using the Coincidence Techniques”, Nigerian Journal of Pure and Applied Sciences, 8 (2017) 281.

P. H. Regan et al., “Applications of LaBr 3 (Ce) Gamma-ray Spectrometer Arrays for Nuclear Spectroscopy and Radionuclide Assay”, Journal of Physics: Conference Series 763 (2016) 012004.

C. Wheldon, www.wheldon.talktalk.net/files/halflife.c.

C. M. Baglin, “Nuclear Data Sheets for A = 192”, Nuclear Data Sheets 113 (2012) 1871.

Published

2020-11-15

How to Cite

Daniel, T., Kisyov, S., Regan, P. ., Marginean, N., Podolyak, Z., R. Marginean, K. Nomura, M. Rudigier, R. Mihai, V. Werner, R. J. Carroll, Gurgi, L., A. Oprea, Berry, T., A. Serban, C. R. Nita, C. Sotty, R. Suvaila, A. Turturica, C. Costache, L. Stan, A. Olacel, M. Boromiza, S. Toma, S. J. Gemanam, F. Gbaorun, I. Ochala, & E. C. Hemba. (2020). Prompt Response Function (PRF) of Lifetime Measurement in the 2+ State of 192Os Nuclei Energy Levels from Triple-Gamma Coincidence Techniques. Journal of the Nigerian Society of Physical Sciences, 2(4), 257–261. https://doi.org/10.46481/jnsps.2020.93

Issue

Section

Original Research