Nuclear Data Sheets for A = 103

Frenne, D. De

doi:10.1016/j.nds.2009.08.002

Cited by 89 publications

(43 citation statements)

References 204 publications

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“…These along with the lowest 7/2 − , which is the only negative-parity state strongly populated in the β decay of 109 Rh, and the 5/2 + 2 state, which has a dominant β-feeding intensity systematically across the Pd chain [21,[25][26][27][28][29][30], are highlighted below. A.…”

Section: Discussionmentioning

confidence: 99%

“…Single-neutron transfer [21,[24][25][26][27][28][29] and high spin studies [41][42][43][44][45][46][47][48] indicate that one of these levels consistently displays a νg 7/2 single-particle character, while the other can be described as a νd 5/2 ⊗ 2 + 1 configuration. This distinction is based on the observed spectroscopic strengths (Table II) and band structures connected to them (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Note that the groundstate spins and parities for the Pd isotopes in this mass range are all 5/2 + . Of particular interest from a nuclear structure standpoint are the 7/2 + states which appear in pairs at relatively low energies systematically across the Pd isotope chain [21][22][23][24][25][26][27][28][29][30] and seem to display two distinct structures. Other levels of interest are the lowest 7/2 − , which is the only negative-parity state strongly populated in the β decay of 109 Rh, and the 5/2 + 2 state, which has a dominant β-feeding intensity systematically across the Pd isotopic chain [21,[25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

“…The purple levels highlight the 5/2 + 2 states and associated band structure observed in 105 Pd [45]. [21,[24][25][26][27][28][29]. Although based on Fig.…”

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confidence: 99%

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New lifetime measurements inPd109and the onset of deformation atN=60

et al. 2015

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Several new sub-nanosecond lifetimes were measured in 109 Pd using the fast-timing βγγ(t) method. Fission fragments of the A=109 mass chain were produced by bombarding natural uranium with 30 MeV protons at the Jyväskylä Ion Guide Isotope Separator On-Line (IGISOL) facility. Lifetimes were obtained for excited states in 109 Pd populated following β decay of 109 Rh. The new lifetimes provide some insight into the evolution of nuclear structure in this mass region. In particular, the distinct structure of the two low-lying 7/2 + states occurring systematically across the Pd isotopic chain is supported by the new lifetime measurements. The available nuclear data indicate a sudden increase in deformation at N =60 which is related to the strong p-n interaction between πg 9/2 and νg 7/2 valence nucleons expected in this region.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The purple levels highlight the 5/2 + 2 states and associated band structure observed in 105 Pd [45]. [21,[24][25][26][27][28][29]. Although based on Fig.…”

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confidence: 99%

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New lifetime measurements inPd109and the onset of deformation atN=60

et al. 2015

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“…No data exist for the population of this isomeric state via neutron-induced reactions. For the stable 103 Rh [2], the first excited state is at 39.75 keV excitation energy, a 7/2 + , 56.114 min isomer and the ground state has spin and parity 1/2 − .…”

Section: Introductionmentioning

confidence: 99%

Feeding of Rh and Ag isomers in fast-neutron-induced reactions

et al. 2016

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Background: In (n, n ′ ) reactions on stable Ir and Au isotopes in the mass A = 190 region the experimentally established feeding of the isomers relative to the feeding of the corresponding ground states increases with increasing neutron energy up to the neutron energy where the (n, 2n) reaction channel opens up and then decreases.Purpose: In order to check for similar behavior in the mass A = 100 region the feeding of isomers and ground states in fast-neutron-induced reactions on stable isotopes in this mass region was studied. This is of especial interest for Rh which can be used as a radiochemical detector.Methods: Excited states were studied using the (n, n ′ γ), (n, 2nγ) and (n, 3nγ) reactions on 103 Rh and 109 Ag. A germanium-detector array for γ-ray detection and the broad-spectrum pulsed neutron source of the Los Alamos Neutron Science Center's Weapons Neutron Research facility were used for the measurement. The energy of the incident neutrons was determined using the time-of-flight technique.Results: Absolute partial γ-ray cross sections were measured for 57 transitions feeding isomers and ground states in 101,102,103 Rh and 107,108,109 Ag. The feeding of the isomers was found to be very similar in the corresponding reaction channels and it is compared to the feeding determined for the ground states. Conclusions:The opening of reaction channels at higher neutron energies removes angular momentum from the residual nucleus and reduces the population of the higher-spin isomers relative to the feeding of the lower-spin ground states. Similar behavior was observed in the mass A = 190 region in the feeding of higher-spin isomers, but the reverse behavior was observed in 176 Lu with a lower-spin isomer and a higher-spin ground state.PACS numbers: PACS number(s): 25.40.-h, 28.20.-v, 24.10.-i, 25.40.Fq * fotia@lanl.gov 2

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Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

et al. 2017

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Cs (IsoRay Medical model CS-1 Rev2). Observations are included on the behavior of these dosimetry parameters as a function of radionuclide. Recommendations are presented on the selection of dosimetry parameters, such as from societal reports issuing consensus datasets (e.g., TG-43U1, AAPM Report #229), the joint AAPM/IROC Houston Registry, the GEC-ESTRO website, the Carleton University website, and those included in software releases from vendors of treatment planning systems. Aspects such as timeliness, maintenance, and rigor of these resources are discussed.Links to reference data are provided for radionuclides (radiation spectra and half-lives) and dose scoring materials (compositions and mass densities). The recent literature is examined on photon energy response corrections for thermoluminescent dosimetry of low-energy photon-emitting brachytherapy sources. Depending upon the dosimetry parameters currently used by individual physicists, use of these recommended consensus datasets may result in changes to patient dose calculations. These changes must be carefully evaluated and reviewed with the radiation oncologist prior to their implementation.

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Nuclear Data Sheets for A = 103

Cited by 89 publications

References 204 publications

New lifetime measurements inPd109and the onset of deformation atN=60

New lifetime measurements inPd109and the onset of deformation atN=60

Feeding of Rh and Ag isomers in fast-neutron-induced reactions

Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

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