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-delayed fission of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Am</mml:mi><mml:mprescripts /><mml:none /><mml:mn>230</mml:mn></mml:mmultiscripts></mml:math>

Wilson, G. L.; Morimoto, K.; Orlandi, R.; Nishio, K.; Antalic, S.; Morita, Kosuke; Heßberger, F. P.; Wakabayashi, Y.; Murakami, Masashi; Takeyama, Masaharu; Kaji, D.; Smith, Andrew; Ghys, L.; Andreyev, A. N.; Yamaki, Shohei; Huang, M. R.; Tanaka, Kengo; Kalaninová, Z.; Catford, W. N.; Haba, Hiromitsu; Andel, B.

doi:10.1103/physrevc.96.044315

Cited by 8 publications

(3 citation statements)

References 28 publications

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“…Similarly, the final P βDF values for both isomers fit into analogous systematics of βDF probabilities (shown for example in Ref. [32]).…”

Section: Combination Of Nb and Time-gated Bb Mode Resultsmentioning

confidence: 58%

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β -delayed fission of isomers in Bi188

Andel¹,

Andreyev²,

Antalic³

et al. 2020

Phys. Rev. C

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β-delayed fission (βDF) decay of a low-spin (ls) and a high-spin (hs) isomer in 188 Bi was studied at the ISOLDE facility at CERN. Isomer-selective laser ionization and time gating were employed to investigate each isomer separately and their βDF partial half-lives were determined: T 1/2p,βDF (188 Bi hs) = 5.6(8) × 10 3 s and T 1/2p,βDF (188 Bi ls) = 1.7(6) × 10 3 s. This work is the first βDF study of two states in one isotope and allows the spin dependence of low-energy fission to be explored. The fission fragment mass distribution of a daughter nuclide 188 Pb, following the β decay of the high-spin isomer, was deduced and indicates a mixture of symmetric and asymmetric fission modes. Experimental results were compared with self-consistent mean-field calculations based on the finite-range Gogny D1M interaction. To reproduce the measured T 1/2p,βDF (188 Bi hs), the calculated fission barrier of 188 Pb had to be reduced by ≈30%. After this reduction, the measured T 1/2p,βDF (188 Bi ls) was in agreement with calculations for a few possible configurations for 188 Bi ls. Theoretical βDF probabilities for these configurations were found to be lower by a factor of 4-9 than the βDF probability of 188 Bi hs. The fission fragment mass distribution of 188 Pb was compared to the scission-point model SPY and the calculations based on the finite-range liquid-drop model. The first observation of βDF for 190 Bi is also reported.

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“…Similarly, the final P βDF values for both isomers fit into analogous systematics of βDF probabilities (shown for example in Ref. [32]).…”

Section: Combination Of Nb and Time-gated Bb Mode Resultsmentioning

confidence: 58%

“…[31] and in the case of 230 Am, 236 Bk, and 240 Es, they were calculated based on P βDF , b β , and T 1/2 values given in Refs. [32,33]. We note that the data points were larger than the error bar range for several cases in the figure.…”

Section: Combination Of Nb and Time-gated Bb Mode Resultsmentioning

confidence: 89%

β -delayed fission of isomers in Bi188

Andel¹,

Andreyev²,

Antalic³

et al. 2020

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

show abstract

“…To conclude this section, we mention that recently, βDF of 236 Bk and 240 Es was identified at the gas-filled separator RITU at JYFL [137], while βDF of 230 Am was observed at the GARIS gas-filled separator at RIKEN [138,139]. For 236 Bk and 240 Es, quite large βDF probabilities, of the order of ∼10% were derived, while a lower limit of P βDF >30% was derived for 230 Am.…”

Section: Recent βDf Results At Recoil Separatorsmentioning

confidence: 99%