K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in 93Nb

Horvat, V.; Tereshatov, E. E.; Hardy, J. C.; Nica, N.; Folden, C. M.; Iacob, V. E.; Trzhaskovskaya, M. B.

doi:10.1103/physrevc.102.014310

Title: K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in ⁹³Nb

Journal Article · 12 July 2020 · Physical Review C

DOI: https://doi.org/10.1103/physrevc.102.014310 · OSTI ID:1779717

^[1];

^[2];

^[2]; Nica, N. ^[2];

^[2]; Iacob, V. E. ^[2];

^[3]

Texas A & M Univ., College Station, TX (United States); Cyclotron Institute, Texas A&M University, TX (United States)
Texas A & M Univ., College Station, TX (United States)
Petersburg Nuclear Physics Institute, Gatchina (Russian Federation)

The 30.8 keV (1/2)^– isomeric state in $$^{93}_{41}$$Nb decays by an M4 transition to the (9/2)⁺ ground state. Here, we have measured the K-shell internal conversion coefficient α_K for this transition in order to test the validity of current methods of calculation for a case with relatively low atomic number, low transition energy, and a high value of α_K. Taking the fluorescence yield of niobium to be 0.751(4), we obtain α_K = 2.56(9) × 10⁴, a result that agrees with the Dirac-Fock calculations that take into account the presence of a K vacancy in the final state, and disagrees by 1.7 standard deviations with calculations that ignore the vacancy. We also determine the energy of the isomeric state to be 30.760(5) keV, a fourfold improvement in precision over the currently accepted value.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: Robert A. Welch Foundation; USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-93ER40773

OSTI ID:: 1779717

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 1 Vol. 102; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (35)

K x-ray fluorescence cross-section measurements of some elements in the energy range 8-47 keV Singh, Surinder; Rani, Rakesh; Mehta, Devinder X-Ray Spectrometry, Vol. 19, Issue 3 https://doi.org/10.1002/xrs.1300190313	journal	June 1990
Measurement of K fluorescence yields of niobium and rhodium using monochromatic radiation: K fluorescence yields of niobium and rhodium Riffaud, Jonathan; Lépy, Marie-Christine; Ménesguen, Yves X-Ray Spectrometry, Vol. 46, Issue 5 https://doi.org/10.1002/xrs.2757	journal	March 2017
Widths of the Atomic k–n7 Levels Campbell, J. L.; Papp, Tibor Atomic Data and Nuclear Data Tables, Vol. 77, Issue 1 https://doi.org/10.1006/adnd.2000.0848	journal	January 2001
Dirac–Fock Internal Conversion Coefficients Band, I. M.; Trzhaskovskaya, M. B.; Nestor, C. W. Atomic Data and Nuclear Data Tables, Vol. 81, Issue 1-2 https://doi.org/10.1006/adnd.2002.0884	journal	May 2002
The decay of115 mIn Hansen, H. H.; de Roost, E.; van der Eijk, W. Zeitschrift für Physik, Vol. 269, Issue 2 https://doi.org/10.1007/BF01669057	journal	June 1974
Accurate efficiency calibration and properties of semiconductor detectors for low-energy photons Hansen, J. S.; McGeorge, J. C.; Nix, D. Nuclear Instruments and Methods, Vol. 106, Issue 2 https://doi.org/10.1016/0029-554X(73)90365-0	journal	January 1973
Measurement of K-shell fluorescence yields in elements 28⩽Z⩽53 Arora, S. K.; Allawadhi, K. L.; Sood, B. S. Physica B+C, Vol. 111, Issue 1 https://doi.org/10.1016/0378-4363(81)90166-2	journal	October 1981
Recommended standards for γ-ray energy calibration (1999) Helmer, R. G.; van der Leun, C. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 1 https://doi.org/10.1016/S0168-9002(00)00252-7	journal	August 2000
Evaluation of atomic shell data Schönfeld, E.; Janßen, H. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 369, Issue 2-3 https://doi.org/10.1016/S0168-9002(96)80044-1	journal	February 1996
Measurement of K-shell fluorescence cross-sections and yields of 14 elements in the atomic number range 25⩽Z⩽47 using photoionization Durak, Rιdvan; Özdemır, Yüksel Radiation Physics and Chemistry, Vol. 61, Issue 1 https://doi.org/10.1016/S0969-806X(00)00353-4	journal	April 2001
Precise efficiency calibration of an HPGe detector up to 3.5MeV, with measurements and Monte Carlo calculations Helmer, R. G.; Nica, N.; Hardy, J. C. Applied Radiation and Isotopes, Vol. 60, Issue 2-4 https://doi.org/10.1016/j.apradiso.2003.11.012	journal	February 2004
Measurement of K X-ray fluorescence cross-sections, fluorescence yields and intensity ratios for some elements in the atomic range 22⩽Z⩽68 Han, I.; Şahin, M.; Demir, L. Applied Radiation and Isotopes, Vol. 65, Issue 6 https://doi.org/10.1016/j.apradiso.2007.01.009	journal	June 2007
Experimental characterization and Monte Carlo simulation of Si(Li) detector efficiency by radioactive sources and PIXE Mesradi, M.; Elanique, A.; Nourreddine, A. Applied Radiation and Isotopes, Vol. 66, Issue 6-7 https://doi.org/10.1016/j.apradiso.2008.02.074	journal	June 2008
Decay data evaluation project (DDEP): Updated evaluations of the 233Th and 241Am decay characteristics Chechev, Valery P.; Kuzmenko, Nikolay K. Applied Radiation and Isotopes, Vol. 68, Issue 7-8 https://doi.org/10.1016/j.apradiso.2009.11.032	journal	July 2010
Precise test of internal-conversion theory: αK measurements for transitions in nine nuclei spanning 45 ≤ Z ≤ 78 Hardy, J. C.; Nica, N.; Iacob, V. E. Applied Radiation and Isotopes, Vol. 134 https://doi.org/10.1016/j.apradiso.2017.05.021	journal	April 2018
Nuclear Data Sheets for A = 93 Baglin, Coral M. Nuclear Data Sheets, Vol. 112, Issue 5 https://doi.org/10.1016/j.nds.2011.04.001	journal	May 2011
Heavy-ion beam induced effects in enriched gadolinium target films prepared by molecular plating Mayorov, D. A.; Tereshatov, E. E.; Werke, T. A. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 407 https://doi.org/10.1016/j.nimb.2017.07.012	journal	September 2017
A simple approach for developing model OF Si(Li) detector in Monte Carlo simulation Chuong, Huynh Dinh; Truc Linh, Nguyen Thi; Ngoc Trang, Le Thi Radiation Physics and Chemistry, Vol. 166 https://doi.org/10.1016/j.radphyschem.2019.108459	journal	January 2020
Auger Effect in the Heaviest Elements Gray, Peter R. Physical Review, Vol. 101, Issue 4 https://doi.org/10.1103/PhysRev.101.1306	journal	February 1956
K Fluorescence Yield of Several Metals Roos, Charles E. Physical Review, Vol. 105, Issue 3 https://doi.org/10.1103/PhysRev.105.931	journal	February 1957
High-resolution measurements of the K - MM radiative Auger effect in medium-mass atoms Herren, Ch.; Dousse, J. -Cl. Physical Review A, Vol. 53, Issue 2 https://doi.org/10.1103/PhysRevA.53.717	journal	February 1996
Experimental evidence for the K - LM radiative Auger effect in medium-mass atoms Herren, Ch.; Dousse, J. -Cl. Physical Review A, Vol. 56, Issue 4 https://doi.org/10.1103/PhysRevA.56.2750	journal	October 1997
How good are the internal conversion coefficients now? Raman, S.; Nestor, C. W.; Ichihara, A. Physical Review C, Vol. 66, Issue 4 https://doi.org/10.1103/PhysRevC.66.044312	journal	October 2002
Precise measurement of α K for the M 4 transition from Ir m 193 : A test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 70, Issue 5 https://doi.org/10.1103/PhysRevC.70.054305	journal	November 2004
Precise measurement of K -shell fluorescence yield in iridium: An improved test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 71, Issue 5 https://doi.org/10.1103/PhysRevC.71.054320	journal	May 2005
Test of internal-conversion theory with measurements in Cs 134 and Ba 137 Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 75, Issue 2 https://doi.org/10.1103/PhysRevC.75.024308	journal	February 2007
Internal conversion coefficients in Cs 134 , Ba 137 , and La 139 : A precise test of theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 77, Issue 3 https://doi.org/10.1103/PhysRevC.77.034306	journal	March 2008
Further test of internal-conversion theory with a measurement in Pt 197 Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 80, Issue 6 https://doi.org/10.1103/PhysRevC.80.064314	journal	December 2009
Precise measurement of α K for the 65.7-keV M 4 transition in 119 Sn: Extended test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 89, Issue 1 https://doi.org/10.1103/PhysRevC.89.014303	journal	January 2014
Precise measurement of α K and α T for the 150.8-keV E 3 transition in Cd 111 : Test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 93, Issue 3 https://doi.org/10.1103/PhysRevC.93.034305	journal	March 2016
Precise measurement of α K for the 88.2-keV M 4 transition in Te 127 : Test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 95, Issue 3 https://doi.org/10.1103/PhysRevC.95.034325	journal	March 2017
Precise measurement of α K and α T for the 109.3-keV M 4 transition in Te 125 : Test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 95, Issue 6 https://doi.org/10.1103/PhysRevC.95.064301	journal	June 2017
Precise measurement of α K and α T for the 39.8-keV E 3 transition in Rh 103 : Test of internal-conversion theory Nica, N.; Hardy, J. C.; Iacob, V. E. Physical Review C, Vol. 98, Issue 5 https://doi.org/10.1103/PhysRevC.98.054321	journal	November 2018
X-ray transition energies: new approach to a comprehensive evaluation Deslattes, Richard D.; Kessler, Ernest G.; Indelicato, P. Reviews of Modern Physics, Vol. 75, Issue 1 https://doi.org/10.1103/RevModPhys.75.35	journal	January 2003
The Integrated TIGER Series (ITS) of Coupled Electron/Photon Monte Carlo Transport Codes Halbleib, J. A.; Mehlhorn, T. A. Nuclear Science and Engineering, Vol. 92, Issue 2 https://doi.org/10.13182/NSE86-A18182	journal	February 1986

Similar Records

Precise measurement of

α_{K}

and

α_{T}

for the 39.8-keV

E 3

transition in

{}^{103}{Rh}

: Test of internal-conversion theory

Journal Article · 2018 · Physical Review C · OSTI ID:1614591

Nica, N.; Hardy, J. C.; Iacob, V. E.; +9 more

Further Test of Internal-conversion Theory with a Measurement in {sup 119}Sn

Journal Article · 2014 · Nuclear Data Sheets · OSTI ID:22439773

Hardy, J. C.; Iacob, V. E.

A DETERMINATION OF THE K-CONVERSION COEFFICIENT OF THE 6.1 SEC M4 TRANSITION IN Pb$sup 20$$sup 3$

Journal Article · 1960 · Arkiv Fysik · OSTI ID:4016405

Persson, L; Stockendal, R

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Electromagnetic transitions
Electroweak Interactions in nuclear physics
Energy levels and level densities
Nuclear Structure and decays

Title: K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in 93Nb

Citation Formats

References (35)

Similar Records

Related Subjects

Title: K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in ⁹³Nb