Étude de la désintégration 95Zr → 95Nb

doi:10.1016/0375-9474(69)91000-8

Nuclear Physics A

Volume 123, Issue 3, 27 January 1969, Pages 513-520

https://doi.org/10.1016/0375-9474(69)91000-8 Get rights and content

Abstract

The decay $^{95} Zr →^{95} Nb$ was studied by means of an iron-free double-focussing β-spectrometer and Ge(Li) detectors. The photon relative intensity of the 758, 724 and 236 keV transitions was measured. The 236 keV isometric transition was studied with a Zr-free ^95mNb source, and its energy, half-life, α_K and α_K/α_L+M+… were accurately measured. Internal conversion results agree completely with theoretical calculations for an M4 assignment. The number of 724 keV photons per ⁹⁵Zr decay and β-branching ratios were deduced.

References (17)

J.H. Hamilton et al.
Nucl. Phys.
(1962)
R.J. Herickhoff et al.
R.S. Hager et al.
Internal conversion tables
Nuclear Data
(1968)
C.M. Lederer et al.
Table of isotopes
(1967)
M. Peyrard
thèse 3e cycle
(1966)
A. Moussa et al.
J. Phys. Rad.
(1954)
J.M. Cork et al.
Phys. Rev.
(1953)
P.S. Mittelman
Phys. Rev.
(1954)
P.P. Zarubin
Izv. Akad. Nauk SSSR (ser. fiz.)
(1954)

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Cited by (8)

Nuclear data sheets for A = 95
2010, Nuclear Data Sheets
Experimental data on ground and excited state properties for all known nuclei with mass number A=95 have been compiled and evaluated. States populated in radioactive decay, as well as in nuclear reactions, have been considered. For these nuclei, level and decay schemes, as well as tables of nuclear properties, are presented. This work supersedes the 1993 evaluation by T. W. Burrows (1993Bu08). In summary, three isomers were identified in ⁹⁵Ag and their respective decay schemes were presented (2003Do09) though only limits on their half lives could be obtained. Besides, high resolution prompt gamma-spectroscopy of ⁹⁵Ag has been reported for the first time (2003Ma24). A comprehensive level scheme ⁹⁵Pd is now available through the ε decay of ⁹⁵Ag (2005Ha45) and the energy of the 21/2+ spin-gap isomer have been established for the first time by observing the gamma-rays from the yrast levels (2003Ma24). The level scheme of ⁹⁵Rh has been extended up to 39/2 h by in-beam spectroscopy (1994Ro08) and the γ-delayed proton decays from ⁹⁶Ag isomers to low-lying levels in ⁹⁵Pd have been observed (2003Ba39). The high spin level scheme of ⁹⁵Ru has been extended up 43/2 h (1994Gh06) and the lifetime or lifetime limits of several high spin states have been reported (2004Ga08). In ⁹⁵Tc, the level scheme has been extended by in-beam spectroscopy (2000Gh01). New data on high spin states in ⁹⁵Mo have been available through in-beam spectroscopy using heavy ion reactions [(1998Kh04),(2004Ch18),(2009Zh11)]. The data on ⁹⁵Nb has been considerably extended by (t,p) reaction (2005Ra30) and by (⁸²Se,p2nγ) reaction (2005Bu08). In ⁹⁵Zr, new measurements on μ (2005St24) and Q (1998Se01) have become available. Controversy on the existence of a 23 keV state in ⁹⁵Zr has been resolved by a high-resolution measurement using magnetic spectrometer (2003So23). New data on high spin states have been published through heavy-ion induced fission [(2002Fo03), (2005Pa48)]. Very recently, new high spin data on ⁹⁵Y by n-induced and spontaneous fission decay have been available (2009Ur02). High spin data on ⁹⁵Sr have been reported by γ-spectroscopy of spontaneous fission decay (2004Hw04). In ⁹⁵Rb, revised estimate of γ-n decay intensity (2002Pf04) and mass excess (2007Ra23) have been reported. New data on ⁸⁵Kr it decay have been reported [(2006Ge05),(2007Si17)] and incorporated.
Nuclear data sheets update for A = 95
1993, Nuclear Data Sheets
Nuclear Data Sheets for A = 95
1983, Nuclear Data Sheets
Gamma-ray emission probabilities of the fission products 144Ce144Pr, 106Rh, 95Zr
1975, Annals of Nuclear Energy
The fission products ¹⁴⁴Ce¹⁴⁴Pr, ¹⁰⁶Rh and ⁹⁵Zr play an important role in the burn-up determination of fuel elements by means of γ-ray spectrometry. One of the crucial quantities in this field is the absolute γ-ray emission probability (intensity) for which values available in literature have not the desirable accuracy of 1–2%.
By using Ge(Li)-spectrometers of known efficiency and sources calibrated by 4πβ-γ-coincidence methods, we determined absolute γ-ray emission probabilities of ¹⁴⁴Ce¹⁴⁴Pr, ¹⁰⁶Rh and ⁹⁵Zr with an uncertainty of ±1% for the main γ-rays.
Nuclear data sheets for A = 95
1972, Nuclear Data Sheets
The 1960 version of the Nuclear Data Sheets for A = 95 has been revised on the basis of experimental data received prior to May 1972. Information from approximately 175 papers and communications has been included in the present compilation.
The data have been examined and utilized to construct level and decay schemes. Inconsistencies in the data are indicated either by direct comparison or in footnotes. Reported normalizations for the decay of ⁹⁵Y differ considerably.
For the stable nucleus ⁹⁵Mo, approximately 60 levels are known; however, firm spin assignments can be made for only a few of these, mainly below 1.5 MeV. A similar situation exists in other nuclei in this mass chain.
The present compilation might serve as a basis for choosing definitive experiments which would augment our knowledge in this mass chain.
Radioactive atoms: Auger-Electron, α-, β, γ-, and X-Ray Data
1970, Topics in Catalysis
Decay schemes and decay characteristics are presented for 105 radioactive atoms of special importance in nuclear medicine, health physics, and industrial applications. Listed in tabular form are “best” values for half-lives, energies, intensities, equilibrium absorbed-dose constants, and 90% absorbed-dose ranges (in water) for each of the atomic and nuclear radiations emitted by these radioactive atoms. Data basic to the adopted values are also given with appropriate literature references.

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Nuclear Physics A

Abstract

References (17)

Nucl. Phys.

Internal conversion tables

Nuclear Data

Table of isotopes

thèse 3e cycle

J. Phys. Rad.

Phys. Rev.

Phys. Rev.

Izv. Akad. Nauk SSSR (ser. fiz.)

Cited by (8)

Nuclear data sheets for A = 95

Nuclear data sheets update for A = 95

Nuclear Data Sheets for A = 95

Gamma-ray emission probabilities of the fission products <sup>144</sup>Ce<sup>144</sup>Pr, <sup>106</sup>Rh, <sup>95</sup>Zr

Nuclear data sheets for A = 95

Radioactive atoms: Auger-Electron, α-, β, γ-, and X-Ray Data