Nuclear Physics and Atomic Energy

ßäåðíà ô³çèêà òà åíåðãåòèêà
Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
  Periodicity: 4 times per year

  Open access peer reviewed journal


 Home page   About 
Nucl. Phys. At. Energy 2015, volume 16, issue 1, pages 21-28.
Section: Nuclear Physics.
Received: 3.11.2014; Accepted: 19.03.2015; Published online: 20.04.2015.
PDF Full Text (ua)
https://doi.org/10.15407/jnpae2015.01.021

Nuclear structure effects in the internal conversion of the 114 and 138 keV M1-transitions in 175Lu

A. P. Lashko*, T. N. Lashko

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

*Corresponding author. E-mail address: lashkoa@kinr.kiev.ua.

Abstract: Conversion-line and γ-ray intensities from the decay of 175Hf (T1/2 = 70 days) have been measured with π√2 magnetic β-spectrometer and two coaxial HPGe-detectors. The values of the internal conversion coefficient αK and penetration parameter λ for intraband magnetic dipole transitions γ114 and γ138 keV in 175Lu were determined.

Keywords: radioactivity, 175Hf, HPGe-detectors, magnetic spectrometer, measurements I(γ), I(ce), internal conversion, penetration parameter.

References:

1. S. Raman, C.W. Nestor Jr., A. Ichihara, M.B. Trzhaskovskaya. How good are the internal conversion coefficients now? Phys. Rev. C 66 (2002) 044312. https://doi.org/10.1103/PhysRevC.66.044312

2. I.M. Band, M.B. Trzhaskovskaya. Tables of gamma rays internal conversion coefficients on K-, L- and M-shells 10 ≤ Z ≤ 104 (Leningrad: Leningrad Nuclear Physics Institute, 1978) 179 p. (Rus)

3. R.S. Hager, E.C. Seltzer. Internal conversion tables. Part I: K-, L-, M-shell conversion coefficients for Z = 30 to Z = 103. Nucl. Data Sheets A 4 (1968) 1. https://doi.org/10.1016/S0550-306X(68)80002-3

4. F. Rosel, H.M. Fries, K. Alder, H.C. Pauli. Internal conversion coefficients for all atomic shells. Atom. Data Nucl. Data Tables 21 (1978) 91. https://doi.org/10.1016/0092-640X(78)90034-7

5. I.M. Band, M.A. Listengarten, A.P. Feresin. Anomalies in the gamma rays internal conversion coefficient (Leningrad: Nauka, 1976) 175 p. (Rus) Google Books

6. R.S. Hager, E.C. Seltzer. Internal conversion tables. Part III: Coefficients for the analysis of penetration effects in internal conversion and E0 internal conversion. Nucl. Data Tables A 6 (1969) 1. https://doi.org/10.1016/S0550-306X(69)80002-9

7. H.C. Pauli. Finite nuclear size effects in internal conversion. Helv. Phys. Acta 40 (1967) 713.

8. E.L. Church, J. Weneser. Effect of the finite nuclear size on internal conversion. Phys. Rev. 104 (1956) 1382. https://doi.org/10.1103/PhysRev.104.1382

9. M.E. Vojkhanskij, M.A. Listengarten. Izv. AN SSSR. Ser. fiz. 23 (1959) 238. (Rus)

10. M.A. Listengarten. Gamma rays internal conversion. In: Gamma rays, Ed. L.A. Sliv (Moskva, Leningrad: Publishing House of the USSR Academy of Sciences, 1961) p. 271. (Rus) Google Books

11. M.E. Vojkhanskij. Radiative transitions in a generalized model of the nucleus. In: Gamma rays, Ed. L.A. Sliv (Moskva, Leningrad: Publishing House of the USSR Academy of Sciences, 1961) p. 44. (Rus) Google Books

12. E.E. Berlovich. Experimental studies of radiative transitions in nuclei. In: Gamma rays, Ed. L.A. Sliv (Moskva, Leningrad: Publishing House of the USSR Academy of Sciences, 1961) p. 85. (Rus) Google Books

13. O. Bor, B. Mottelson. The structure of the atomic nucleus, Vol. 2. Transl. from English, Ed. L.A. Sliv (Moskva: Mir, 1977) 664 p. (Rus) Google Books

14. L. Grodzins. Magnetic dipole moments of nuclear excited states. Sov. Usp. 103 (1971) 37. (Rus) https://doi.org/10.3367/UFNr.0103.197101b.0037

15. V.I. Kyryshchuk, A.P. Lashko, T.M. Lashko. Anomalies in Internal Conversion Coefficients for Hindered γ-Transitions. Ukr. J. Phys. 57 (2012) 1097. (Ukr) http://www.ujp.bitp.kiev.ua/files/journals/57/11/571101p.pdf

16. Evaluated Nuclear Structure Data File (National Nuclear Data Center, Brookhaven National Laboratory). https://www.nndc.bnl.gov/ensdf/

17. C. Protop. On the calculation of the penetration factor for the internal conversion of magnetic dipole transitions in deformed nuclei. Rev. Roum. Phys. 16 (1971) 951.

18. M.A. Listengarten. Actual problems of physics related to the study of internal conversion electrons with magnetic spectrometers. In: Prismatic beta spectrometers and their application (Vilnius: Publishing House of the Institute of Physics, Academy of Sciences of the Lithuanian SSR, 1971) p. 169. (Rus)

19. F. Constantinescu, Al. Enulescu, A. Gelberg et al. Internal conversion of 113.8 keV transition in 175Lu. Z. Phys. 267 (1974) 389. https://doi.org/10.1007/BF01669971

20. L.M. Quinones, M. Behar, Z.W. Grabowski et al. Multipol mixing ratios of transitions in 175Lu populated from the decay of 175Hf. Z. Phys. A 274 (1975) 173. https://doi.org/10.1007/BF01408470

21. A.G. Troitskaya, V.M. Kartashov, G.A. Shevelev. Izv. AN KazSSR. Ser. fiz.-mat. 4 (1977) 8. (Rus)

22. S. Deepa, K.V. Sai, D. Rao et al. Anomalous conversion of the 113.8 keV transition in 175Lu. Proc. of the DAE Symposium on Nuclear Physics 56 (2011) 378. https://www.sympnp.org/proceedings/

23. A.P. Feresin, G. Shul'ts. Izv. AN SSSR. Ser. fiz. 36 (1972) 890. (Rus)

24. V.V. Bulgakov, V.I. Kirishchuk, A.P. Lashko et al. Izv. AN SSSR. Ser. fiz. 53 (1989) 855. (Rus)

25. L.A. McNelles, J.L. Campbell. Absolute efficiency calibration of coaxial Ge(Li) detectors for the energy range 160-1330 keV. Nucl. Instrum. Methods 109 (1973) 241. https://doi.org/10.1016/0029-554X(73)90268-1

26. V.V. Bulgakov, V.I. Gavrilyuk, A.P. Lashko et al. High resolution magnetic beta-spectrometer in INR of Ukrainian Academy of Sciences. Preprint KINR-86-33 (Kyiv: Institute for Nuclear Research, 1986) 48 p. (Rus)

27. V.P. Khomenkov. Study of atomic and nuclear effects in the gamma rays internal conversion. Abstract of PhD Thesis (Kyiv: Institute for Nuclear Research, 2003) 19 p. (Ukr)

28. A.P. Lashko, T.N. Lashko, V.A. Martinishin. The gamma-ray intensities from the 175Hf decay. Abstracts of LXIII Intern. Conf. “Nucleus 2013”, October 8 - 12, 2013, Moscow (Saint-Petersburg, 2013) p. 91.

29. G.T. Emery, M.L. Perelman. Dynamic penetration effects in the internal conversion of electric dipole transitions in Lu175. Phys. Rev. 151 (1966) 984. https://doi.org/10.1103/PhysRev.151.984

30. D. Ashery, A.E. Blaugrund, R. Kalish. E2/M1 mixing ratios and K conversion coefficients in odd-mass rotational nuclei. Nucl. Phys. 76 (1966) 336. https://doi.org/10.1016/0029-5582(66)90027-7

31. O. Nilsson, S. Tornkvist, G. Malmstenet al. Internal conversion studies of the 114 keV transition in 175Lu. Z. Phys. 221 (1969) 106. https://doi.org/10.1007/BF01392065

32. J.D. Reierson, G.C. Nelson, E.N. Hatch. Gamma-ray measurements with a bent-crystal spectrometer. Nucl. Phys. A 153 (1971) 109. https://doi.org/10.1016/0375-9474(70)90759-1

33. B.S. Dzhelepov. Methods of Development of Complex Decay Schemes (Leningrad: Nauka, 1974) 232 p. (Rus) Google Books

34. E.N. Hatch, F. Boehm, P. Marmier, J.W.M. DuMond. Rotational and intrinsic levels in Tm169 and Lu175. Phys. Rev. 104 (1956) 745. https://doi.org/10.1103/PhysRev.104.745

35. K.H. Johansen, B. Bengtson, P.G. Hansen, P. Hornshoj. The 12-[514] rotational band in 175Lu and the Q-value of the electron-capture decay. Nucl. Phys. A 133 (1969) 213. https://doi.org/10.1016/0375-9474(69)90460-6

36. T. Novakov, J.M. Hollander. Anomalous L subshell ratios in mixed M1-E2 transitions. Nucl. Phys. 60 (1964) 593. https://doi.org/10.1016/0029-5582(64)90096-3

37. E.M. Bernstein, R. Graetzer. Internal conversion electrons following Coulomb excitation of highly deformed odd-A nuclei. Phys. Rev. 119 (1960) 1321. https://doi.org/10.1103/PhysRev.119.1321

38. V.N. Grigor'ev, Yu.V. Sergeenkov. Izv. AN SSSR. Ser. fiz. 35 (1971) 1638. (Rus)

39. M.S. Basunia. Nuclear Data Sheets for A = 175. Nucl. Data Sheets 102 (2004) 719. https://doi.org/10.1016/j.nds.2004.09.002

40. M.A. Listengarten. Abnormal internal conversion of electromagnetic transitions in atomic nuclei. In: Modern methods of nuclear spectroscopy 1985, Ed. B.S. Dzhelepov (Leningrad: Nauka, 1986) p. 142. (Rus) Google Books

41. K.S. Krane. E2, M1 multipole mixing ratios in odd-mass nuclei, A > 150. Atom. Data Nucl. Data Tables 18 (1976) 137. https://doi.org/10.1016/0092-640X(76)90045-0