Nuclear structure<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">of</mml:mi></mml:mrow><mml:mrow><mml:mn>229</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Th from γ-ray spectroscopy study<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">of</mml:mi></mml:mrow><mml:mrow><mml:mn>233</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>U α-

Barci, V.; Ardisson, G.; Barci-Funel, G.; Weiss, B.; Samad, O. El; Sheline, Raymond K.

doi:10.1103/physrevc.68.034329

Cited by 80 publications

(85 citation statements)

References 45 publications

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“…III) than b 29 , leading to a smaller shift of 0.2 eV and the currently accepted value of E is = 7.8 ± 0.5 eV. Interestingly, the same branching ratios can be obtained from the experimental data [46][47][48][49] for parameters of interband (see in Figure 1 Table III, where the probabilities of the inband transitions were calculated using the internal quadrupole moment Q 20 and the difference of the rotational and internal gyromagnetic ratio g R and g K , respectively (for the rotational band 5/2…”

Section: Energy Of the Nuclear Isomeric Levelsupporting

confidence: 67%

“…Specifically, Table VI of Ref. [48] presents the intensities of gamma transitions from the levels 7/2 + (71.826 keV) and 5/2 + (29.193 keV); some of these data are experimental results, while others (namely, the relative intensities of the interband transitions) were calculated from the strong coupling rotational model. The branching ratios calculated from these data are presented in Tab.…”

Section: Energy Of the Nuclear Isomeric Levelmentioning

confidence: 99%

“…1(a). Interestingly, the data of [48] affords another means to obtain B W.u. (M 1; 3/2 + (7.8 eV) → 5/2 + (0.0)).…”

Section: Matrix Element Of the Isomeric Transitionmentioning

confidence: 99%

“…It is very difficult to directly observe the transition in such environments, as both the excitation radiation is absorbed by the electrons and the energy of any conversion electron is very small (only a few electron volts), making it difficult to detect. Similarly, it is difficult to predict the lifetime of the isomeric state for [48]). The refractive index n ≈ 1.5 increases the probability of the M 1 transition by a factor n 3 (third row).…”

Section: Radiative Lifetime Of the Isomeric Levelmentioning

confidence: 99%

“…III, the measurements of Refs. [46][47][48][49] can be used to bound the isomeric level half life. In this section we will use the radiation lifetime instead of half-life, which is traditionally used in atomic spectroscopy.…”

Section: Defining a Favored Area And Current Exclusionsmentioning

confidence: 99%

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Radiative lifetime and energy of the low-energy isomeric level inTh229

et al. 2015

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We estimate the range of the radiative lifetime and energy of the anomalous, low-energy 3/2 + (7.8± 0.5 eV) state in the 229 Th nucleus. Our phenomenological calculations are based on the available experimental data for the intensities of M 1 and E2 transitions between excited levels of the 229 Th nucleus in the K π [N nZ Λ] = 5/2 + [633] and 3/2 + [631] rotational bands. We also discuss the influence of certain branching coefficients, which affect the currently accepted measured energy of the isomeric state. From this work, we establish a favored region where the transition lifetime and energy should lie at roughly the 90% confidence level. We also suggest new nuclear physics measurements, which would significantly reduce the ambiguity in the present data.

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Section: Energy Of the Nuclear Isomeric Levelsupporting

confidence: 67%

Section: Energy Of the Nuclear Isomeric Levelmentioning

confidence: 99%

“…1(a). Interestingly, the data of [48] affords another means to obtain B W.u. (M 1; 3/2 + (7.8 eV) → 5/2 + (0.0)).…”

Section: Matrix Element Of the Isomeric Transitionmentioning

confidence: 99%

Section: Radiative Lifetime Of the Isomeric Levelmentioning

confidence: 99%

Section: Defining a Favored Area And Current Exclusionsmentioning

confidence: 99%

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Radiative lifetime and energy of the low-energy isomeric level inTh229

et al. 2015

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Expanding Nuclear Physics Horizons with the Gamma Factory

et al. 2022

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The Gamma Factory (GF) is an ambitious proposal, currently explored within the CERN Physics Beyond Colliders program, for a source of photons with energies up to ≈400 MeV and photon fluxes (up to ≈1017 photons s−1) exceeding those of the currently available gamma sources by orders of magnitude. The high‐energy (secondary) photons are produced via resonant scattering of the primary laser photons by highly relativistic partially‐stripped ions circulating in the accelerator. The secondary photons are emitted in a narrow cone and the energy of the beam can be monochromatized, down to 10−3–10−6 level, via collimation, at the expense of the photon flux. This paper surveys the new opportunities that may be afforded by the GF in nuclear physics and related fields.

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Pumping 229m Th by Hollow-Cathode Discharge

Inamura¹,

Mitsugashira²

Laser 2004

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Nuclear structureof229Th from γ-ray spectroscopy studyof233U α-

Cited by 80 publications

References 45 publications

Radiative lifetime and energy of the low-energy isomeric level inTh229

Radiative lifetime and energy of the low-energy isomeric level inTh229

Expanding Nuclear Physics Horizons with the Gamma Factory

Pumping 229m Th by Hollow-Cathode Discharge

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