Gamma-ray decay schemes of 109gPd, 111gPd and 111mPd

Schick, W.C.; Talbert, W.L.

doi:10.1016/0375-9474(69)90411-4

Cited by 37 publications

(10 citation statements)

References 29 publications

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“…The shape of the X-ray peak in the Si spectra was determined from parallel runs on HSAg and t16Ag, and the magnitude of this peak was normalized using data from the HPGe spectrum sensitive to the consequences of pairing, with a more or less pronounced cancellation of the transition rate when the Fermi level is situated between the connected states. The strong hindrance of the isomeric transition in x~5pd, Table 2, appears to be a rather typical example of pairing hindrance, especially when seen together with the systematics [19] of hindrance factors for similar transitions in other isotopes of Pd. Fig.…”

Section: The Intensities Of the Isomeric Transitionsmentioning

confidence: 93%

Isomerism, total decay energies, and absolute ?-ray intensities of the heavy Pd and Ag isotopes

Fogelberg

Zongyuan

Ekstrom

et al. 1990

Z. Physik A - Atomic Nuclei

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The decays of 113,114, 115g, 115m, 116pd have been studied with an emphasis on the determinations of total decay energies and absolute ?-ray intensities. The experiments also provided improved data on these quantities for the decays of 114'115g'llSm't16mAg. A search for isomeric transitions using a high resolution electron detector resuited in the identification of isomeric E3 transitions in 115pd and 113,115,116,117Ag" The isomeric branching was determined in all cases. The Qa-values of 113-116pd and 113 116Ag have been measured using a /?V-coincidence method. 21.10.Dr; 23.20.Lv The investigations reported here also include measurements of total decay energies using a/?y-coincidence method. Previous information on the Qp-values in this region was unprecise in most cases and unknown for llSpd" PACS:The first experimental studies of the short lived Pd and Ag activities discussed here were reported [3][4][5][6][7] several years ago. More detailed information is now becoming available through spectroscopic studies of 113,115pd ' see [8,9] and studies [10] of the even-A isobaric chains. The work reported here forms a part of a very detailed investigation of the level structure of Ag and Cd nuclei. The results of this work are now being prepared for publication [11].

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Section: The Intensities Of the Isomeric Transitionsmentioning

confidence: 93%

Isomerism, total decay energies, and absolute ?-ray intensities of the heavy Pd and Ag isotopes

Fogelberg

Zongyuan

Ekstrom

et al. 1990

Z. Physik A - Atomic Nuclei

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“…6. The present energy levels in t~ together with the suggested J= values are eompared as given in Table VI with data reported by G•AEFFE and GORDO~ [3], BEaZIr~S et al [2] and SCHICK and TALBEaT [1]. Although there is a general agreement yet on aeeount of the additional information aehieved in this investigation, partieularly with eoneern to the new gamma transitions as well as the coincidence and directional angular cor~ relation measurements, one can mainly point out the following:…”

Section: L~ Level Schemementioning

confidence: 60%

“…7. The deduced level scheme of 111Ag involves 25 excited states from which five levels at 1351 + 0.6, 1632 ~ 0.4, 1764 ~ 0.5, 2060 ~ 0.8 and 2167 + 0.5 keV ate cm,si, ered to be new and three levels at 1782, 1934, and 1965 keY reported by ScrIICIr and TALBERT [1] are not confirmed. The remaining states are in excellent agreement with those found by these authors as listed in Table VII.…”

Section: L~ Level Schemementioning

confidence: 76%

“…SCrtICK and TALBERT [1] have carried out the most recent extensive studies on the energy levels of ~~ and l~lAg excited in the beta decay of the concerned palladium isotopes using Ge(Li) and NaI(TI) detectors, both in singles and coincidence. These authors have been able to observe 28 gamma transitions in l~ of energies up to 868 keV in general agreement with those recently reported by BERZII~S et al [2] and GRAEFFE and GORDON [3].…”

Section: Introductionmentioning

confidence: 99%

“…However, some discrepancies are noted particularly among excited states of energies greater than 415 keV which require further investigation. In case of 111Ag, SCHICK and TALBEaT [1] have also identified in the decay of 111gPd and 11~mpd about 150 gamma transitions of energies up to 2086 keV but could not place about one third of them in their proposed decay scheme. The complexity of that decay is certainly in need of more experimental and theoretical studies which can allow for establishing a definite scheme for the decay of 111Ag.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear states of109Ag and111Ag

1975

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Gamma ray spectra associated with the decay of l~ and xllmpd have been studied with Ge (Li) and Ge(Li)--NaI(T1) speetrometers. Thirty six gamma rays ineluding five new transitious ate identified in the l~ decay and placed in a leveI scheme involving two new excited states in i~ at 697 § 0.9 and 811 + 1.0 keV beside twelve known states. Direetional angular eorrelation measurements have alsobeen car¡ out and the spins of states of energies greater than 415 keV have been determined together with related multipolarities and mixiag ratios. For the mmpd decay, 91 gamma rays including 17 rtew transitions are observed. The dedueed level scheme of ntAg is found to involve 25 excited states from which five levels at 1351 _+_ 0.6, 1632 ! 0.4, 1764 + 0.5, 2060 _+ 0.5 and 2167 + 0.5 keV are considered to be new. Previously reported states at 1781.6, 1933.9 and 1964.6 keVare not confirmed. Spin and parity assignments for the various observed levels are suggested.

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In situ Growth of Pd Nanoparticles in Crosslinked Polymer Matrices

Aberg

Seyam

Lassell

et al. 2008

Macromol. Rapid Commun.

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Polymer nanocomposites continue to receive considerable attention as multifunctional hybrid materials, with most nanocomposites fabricated by physical dispersion of surface‐functionalized nanoscale objects. In this study, we explore the viability of growing Pd‐containing nanoparticles from Na2PdCl4 in two different polymers: hypercrosslinked polystyrene (HPS) and an aromatic polyimide (PIm). In HPS, single Pd‐containing nanoparticles possessing a relatively narrow size distribution (ca. 1–4 nm) form upon reduction of the divalent PdCl ions. Single nanoparticles with a broad size distribution ranging from ≈2 to 16 nm develop in PIm, which simultaneously undergoes chemical crosslinking during ion reduction. Such hybrid materials hold promise in molecular catalysis and gas separation.magnified image

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Gamma-ray decay schemes of 109gPd, 111gPd and 111mPd

Cited by 37 publications

References 29 publications

Isomerism, total decay energies, and absolute ?-ray intensities of the heavy Pd and Ag isotopes

Isomerism, total decay energies, and absolute ?-ray intensities of the heavy Pd and Ag isotopes

Nuclear states of109Ag and111Ag

In situ Growth of Pd Nanoparticles in Crosslinked Polymer Matrices

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