Nuclear Data Sheets for A = 211

Singh, Balraj; Abriola, D.; Baglin, Coral M.; Demetriou, Vivian; Johnson, Timothy D.; McCutchan, E. A.; Mukherjee, G.; Singh, Sukhjeet; Sonzogni, A. A.; Tuli, J.K.

doi:10.1016/j.nds.2013.05.001

Cited by 48 publications

(16 citation statements)

References 176 publications

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“…The decay branch from 223 Fr to 219 At has a very low probability, and therefore the subsequent steps of that branch are omitted from the calculation; they merge with the main decay path at different points. With regard to the energy balance, the β – decays of 231 Th (NuDat v.2.7 β ) [ Browne and Tuli , ], 227 Ac (NuDat v.2.7 β ) [ Kondev et al ., ], 223 Fr [ Huang and Wang , ],

^{211} Pb,^{211}

Bi (NuDat v.2.7 β ) [ Singh et al ., ], and 207 Tl (NuDat v.2.7 β ) [ Kondev and Lalkovski , ] require attention because of the neutrino component. Very low‐probability β – decays of 215 Po to 215 At and of

^{207} {Tl}^{m} to^{207}

Pb (not shown) are neglected.…”

Section: Resultsmentioning

confidence: 99%

Radioactive heat production of six geologically important nuclides

Ruedas

2017

Geochem Geophys Geosyst

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Heat production rates for the geologically important nuclides 26Al, 40K, 60Fe, 232Th, 235U, and 238U are calculated on the basis of recent data on atomic and nuclear properties. The revised data differ by several percent from some older values but indicate that more recent analyses converge toward values with an accuracy sufficient for all common geoscience applications, although some possibilities for improvement still remain, especially in the case of 40K and with regard to the determination of half‐lives. A Python script is provided for calculating heat production (https://github.com/trg818/radheat).

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^{211} Pb,^{211}

^{207} {Tl}^{m} to^{207}

Pb (not shown) are neglected.…”

Section: Resultsmentioning

confidence: 99%

Radioactive heat production of six geologically important nuclides

Ruedas

2017

Geochem Geophys Geosyst

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“…However, no such γ rays were known in 213 Rn prior to our study. In addition, among the N = 126 isotones, only 211 At has a substantial EC/β + -decay branching ratio (58.2%) [3], while all the other isotones are known to decay with less than 1% β-decay branch [4][5][6][7][8][9][10][11][12]. Nevertheless, we were able to identify γ rays in 213 Rn populated in the EC/β + decay of 213 Fr with a decay branch of only 0.56% [13].…”

Section: Introductionmentioning

confidence: 78%

Decay of theN=126, Fr213nucleus

et al. 2016

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γ rays following the EC/β + and α decay of the N = 126, 213 Fr nucleus have been observed at the CERN isotope separator on-line (ISOLDE) facility with the help of γ-ray and conversion-electron spectroscopy. These γ rays establish several hitherto unknown excited states in 213 Rn. Also, five new α-decay branches from the 213 Fr ground state have been discovered. Shell model calculations have been performed to understand the newly observed states in 213 Rn.

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“…1 For the purposes of the following discussion we advise the reader to take a look at the binding-energy plot and the Nilsson diagram of 211 Th available in the AMEDEE database [44]. [13][14][15]17,19,33,40,51,52,[54][55][56][57][58][59][60]. The neutron number of 211 Th is 121.…”

Section: Discussionmentioning

confidence: 99%

Isomeric 132+ (νi132−1) sta

Auranen¹,

Uusitalo²,

Badran³

et al. 2021

Phys. Rev. C

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Using a fusion-evaporation reaction and a gas-filled recoil separator, an isomeric state [T1 2 = 83( 8) μs] with a most likely spin and parity of 13 2 + has been identified in 211 Th. The isomeric state is mainly depopulated via a hindered internal M2 transition [B(M2) = 0.0025(5) W.u.], but also a weak α-decay branch of 4(3)% was observed. The present observations fit well to the systematic pattern set by the previously identified states of the same spin and parity in this region of the nuclear chart.

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Nuclear Data Sheets for A = 211

Cited by 48 publications

References 176 publications

Radioactive heat production of six geologically important nuclides

Radioactive heat production of six geologically important nuclides

Decay of theN=126, Fr213nucleus

Isomeric 132+ (νi132−1) sta

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