The radioactive decay of 73gSe and 73mSe

Marlow, K.W.; Faas, A.

doi:10.1016/0375-9474(69)90488-6

Cited by 25 publications

(4 citation statements)

References 13 publications

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“…To avoid the interference with the determination of the half-life of 73 Se, we disregarded in the data analysis the decay data files that corresponded to about five half-lives of this isomeric decay mode. The present measurements agree very well with the adopted value of 7.15  0.09 h [18], which was compiled as a weighted average of 7.18  0.09 h [24] and 7.08  0.15 s [25], but we were able to significantly improve on precision of previous measurements. That was possible because we have used a very clean 73 Se source produced via the 74 Se(,n) reaction with an enriched sample of 74 Se.…”

Section: Isotopesupporting

confidence: 87%

High-precision measurements of half‐lives for 69Ge, 73Se, 83Sr, 85mSr, and 63Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory

Hain

Pendleton

Silano

et al. 2021

J Radioanal Nucl Chem

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The ground state half-lives of 69 Ge, 73 Se, 83 Sr, 63 Zn, and the half-life of the 1/2isomer in 85 Sr have been measured with high precision using the photoactivation technique at an unconventional bremsstrahlung facility that features a repurposed medical electron linear accelerator. The -ray activity was counted over about 6 half-lives with a high-purity Germanium detector, enclosed into an ultra low-background lead shield. The measured half-lives are: T1/2( 69 Ge) = 38.82  0.07 (stat)  0.06 (sys) h; T1/2( 73 Se) = 7.18  0.02 (stat)  0.004 (sys) h; T1/2( 83 Sr) = 31.87  1.16 (stat)  0.42 (sys) h; T1/2( 85m Sr) = 68.24  0.84 (stat)  0.11 (sys) min; T1/2( 63 Zn) = 38.71  0.25 (stat)  0.10 (sys) min. These high-precision half-life measurements will contribute to a more accurate determination of corresponding ground-state photoneutron reaction rates, which are part of a broader effort of constraining statistical nuclear models needed to calculate stellar nuclear reaction rates relevant for the astrophysical p-process nucleosynthesis.

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Section: Isotopesupporting

confidence: 87%

High-precision measurements of half‐lives for 69Ge, 73Se, 83Sr, 85mSr, and 63Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory

Hain

Pendleton

Silano

et al. 2021

J Radioanal Nucl Chem

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“…The intensities were normalized to the integrated beam current and are given in Table 1. The singles spectrum at 16 MeV is shown in Figure 1. An attempt has been made to calculate for some levels the excitation function of the sidefeeding of the level.…”

Section: Experimental Methods and Resultsmentioning

confidence: 98%

“…Further information was taken from the /?-decay of V3Br and of 73Se itself which was investigated by other authors [15][16][17][18][19][20].…”

Section: Discussion Of the Level Schemementioning

confidence: 99%

“…Besides the ground state with a lifetime of 7.2 h [16] there exists another long living state in 73Se with a lifetime of 39 min [16] which decays partly (73 % [16] or 82% [17]) by an E3 transition of 25.71 keV [18,19] and partly by the /?-decay. No y-line in the region between 5 and 80 keV and no K-converted line is coincident with this E3 transition [18].…”

Section: The Ground State and The 257 Kev Statementioning

confidence: 99%

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High spin states in73Se observed by the reaction70Ge(?,n?)

et al. 1976

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V3Se has been investigated by the reaction 7~Gamma excitation functions (E~=10-16 MeV), gamma angular distributions (E~= 18 MeV) and gamma-gamma coincidences (E~=15 MeV) have been taken. A level scheme has been established, spins and partities have been assigned. States of a rotational band on the 151.2 keV (5/2-) state and an anomalous band have been identified. Nuclear Reaction 7~nT) E~= 15 and 18 MeV; measured E~, I,~, ~-7-coin., y-angular distribution, y-excitation function. 73Se deduced levels, J, ~. Enriched target, Ge(Li).

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The gamma-ray lines of radionuclides, ordered by atomic and mass number

Erdtmann

Soyka

1975

J. Radioanal. Chem.

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The radioactive decay of 73gSe and 73mSe

Cited by 25 publications

References 13 publications

High-precision measurements of half‐lives for 69Ge, 73Se, 83Sr, 85mSr, and 63Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory

High-precision measurements of half‐lives for 69Ge, 73Se, 83Sr, 85mSr, and 63Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory

High spin states in73Se observed by the reaction70Ge(?,n?)

The gamma-ray lines of radionuclides, ordered by atomic and mass number

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