Nuclear Data Sheets for A = 238

Browne, E.; Tuli, J.K.

doi:10.1016/j.nds.2015.07.003

Cited by 43 publications

(28 citation statements)

References 520 publications

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“…(11). According to the nuclear data sheets [14], these transition energies are 184.577 ± 0.010 keV and 300.219 ± 0.010 keV. From our measurements, we obtained the values of 184.273 ± 0.005 keV and 300.04 ± 0.23 keV, respectively.…”

Section: Results and Data Analysismentioning

confidence: 68%

“…From our measurements, we obtained the values of 184.273 ± 0.005 keV and 300.04 ± 0.23 keV, respectively. The resulting decay curves are shown in Figure 5, giving 60.3 ± 0.6 h from the 184 keV transition and 197 ± 73 h from the 300 keV transition, while the expected value for the half-life of 67 Cu is 61.83 ± 0.12 h [14]. As can be seen in both cases, the 184 keV transition gives better results since it is much stronger, i.e.…”

Section: Results and Data Analysismentioning

confidence: 81%

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The results of the first photonuclear reaction performed in Turkey: the zinc example

Boztosun¹,

Đapo²,

Özmen³

et al. 2014

Turk J Phys

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Abstract:We have investigated the decays of several zinc isotopes produced by photonuclear reactions, which were induced by bremsstrahlung photon beams from a clinical e-linac. A photon beam of 18 MeV endpoint energy was directed at a target consisting of primarily zinc isotopes in their natural abundances. Subsequently, the induced decays of unstable zinc isotopes were measured with an HPGe detector twice, once shortly after irradiation and once on the following day. Decays of Zn-63, Zn-65, Zn-69m, and Cu-67 were measured and fitted. In addition, the gamma energy levels of the daughters of these decays were measured with good accuracy. All of the measurements were consistent with established data within error bars.

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Section: Results and Data Analysismentioning

confidence: 68%

Section: Results and Data Analysismentioning

confidence: 81%

The results of the first photonuclear reaction performed in Turkey: the zinc example

Boztosun¹,

Đapo²,

Özmen³

et al. 2014

Turk J Phys

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“…In comparison, the 2005 evaluation of E0 transition strengths by Kibédi and Spear [3] gave ρ 2 (E0) = 0.140 (12). This value is based on the I tot (E0)/I γ = 2.05(17)/100.0 (18) Comments a Data from [66] The decay data of the 966.13 keV 2 + state in 238 U was taken from the recent ENSDF evaluation of Browne and Tuli [66] and is listed in Table F. The 921.19 keV transition is a 2 + → 2 + transition.…”

Section: Ca 18373 Kev E0mentioning

confidence: 99%

Table of electronic factors for E0 electron and electron–positron pair conversion transitions

Dowie

Kibédi

Stuchbery

2020

Atomic Data and Nuclear Data Tables

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A new tabulation of electronic factors is reported for electron conversion for elements of Z from 5 to 126 and electronic factors for electron-positron pair conversion for elements of even Z from 4 to 100.The electronic factors for electron conversion, Ω CE (E0), were calculated using a modified version of the CATAR program developed by Pauli and Raff with a relativistic-Hartree-Fock-Slater approach (Comp. Phys. Comm. 9 (1975) 392). The electronic factors for electron-positron pair conversion, Ω IP F (E0), were calculated using the model developed by Wilkinson (Nucl. Phys. A133 (1969) 1). The data tables presented here cover all atomic shells up to R2 and transition energies from 1 keV to 6000 keV and from 1100 keV to 8000 keV for pair conversion. A comparison with previous electronic factor tabulations is presented. Ratios of experimental Ω(E0) values for 83 E0 transitions in 8 ≤ Z ≤ 98 are compared to this tabulation. Two examples of how to use the tabulation to extract E0 strengths are also included.

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“…from ultra-deep boreholes as used for geological R&D and oil exploration. The neutron flux at depths of {5 , 7.5 , 10} km rock overburden is of order {1 , 10 −4 , 10 −8 } cm −2 Gyr −1 , making cosmogenic background negligible for materials obtained from [116][117][118][119][120]. For 238 U we denote both the half-lives corresponding to α-decays and spontaneous fission (SF).…”

Section: A Cosmogenicmentioning

confidence: 99%

Paleo-detectors: Searching for dark matter with ancient minerals

et al. 2019

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We explore paleo-detectors as an approach to the direct detection of Weakly Interacting Massive Particle (WIMP) dark matter radically different from conventional detectors. Instead of instrumenting a (large) target mass in a laboratory in order to observe WIMP-induced nuclear recoils in real time, the approach is to examine ancient minerals for traces of WIMP-nucleus interactions recorded over timescales as large as 1 Gyr. Here, we discuss the paleo-detector proposal in detail, including background sources and possible target materials. In order to suppress backgrounds induced by radioactive contaminants such as uranium, we propose to use minerals found in marine evaporites or in ultra-basic rocks. We estimate the sensitivity of paleo-detectors to spin-independent and spin-dependent WIMP-nucleus interactions. The sensitivity to low-mass WIMPs with masses mχ 10 GeV extends to WIMP-nucleon cross sections many orders of magnitude smaller than current upper limits. For heavier WIMPs with masses mχ 30 GeV cross sections a factor of a few to ∼ 100 smaller than current upper limits can be probed by paleo-detectors.

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Nuclear Data Sheets for A = 238

Cited by 43 publications

References 520 publications

The results of the first photonuclear reaction performed in Turkey: the zinc example

The results of the first photonuclear reaction performed in Turkey: the zinc example

Table of electronic factors for E0 electron and electron–positron pair conversion transitions

Paleo-detectors: Searching for dark matter with ancient minerals

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