Spectre α du 214Bi et remarques sur quelques émetteurs α du Bi

Walen, R.J.; Bastin-Scoffier, G.

doi:10.1016/s0029-5582(60)81035-8

Cited by 34 publications

(6 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This value is closest to the calculated value α tot,calc (M1) = 11.99 (17) and much lower than α tot,calc (E 2) = 127.5(18) [24], confirming the near-pure M1 assignment of previous studies [11][12][13][14][15][16].…”

Section: B α-γ Coincidencessupporting

confidence: 87%

“…Figure 1(a) shows the sum singles α-decay spectrum for Si1 + Si2 collected at A = 218, in which the 218 At α decays can be seen in the 6600 < E α < 6800 keV region, along with decays belonging to surface-ionized isobaric 218 Fr at E α > 7000 keV. The nonobservation of any E α = 7129.2 (12) keV decays of 218 Rn [10] proves that 218 At has a negligible β-decay probability, which is in agreement with the α-decay branching ratio of b α ( 218 At) = 99.9% suggested in Ref. [7].…”

Section: Methodsmentioning

confidence: 99%

“…Published information on the daughter nucleus 214 Bi comes from a series of β-decay studies of 214 Pb → 214 Bi [11][12][13][14][15][16] and 214 Bi → 214 Po [17]. Together, these studies firmly established J π ( 214 Bi g ) = 1 − , with a most probable π 1h 9/2 ⊗ ν2g 9/2 configuration.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fine structure in the α decay of At218

Cubiss¹,

Andreyev²,

Barzakh³

et al. 2019

Phys. Rev. C

View full text Add to dashboard Cite

An α-decay study of 218 At was performed at the CERN-ISOLDE facility. Laser-ionized beams of 218 At were mass separated and implanted into an α-γ detection setup. Coincidence α-γ data were collected for the first time and a more precise half-life value of T 1/2 = 1.27(6) s was measured. A new α-decay scheme was deduced based on the extracted reduced α-decay widths for fine-structure decays. The results from this work lead to a preferred spin and parity assignment of J π = (3 − ); however, J π = (2) − cannot be fully excluded.

show abstract

Section: B α-γ Coincidencessupporting

confidence: 87%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Fine structure in the α decay of At218

Cubiss¹,

Andreyev²,

Barzakh³

et al. 2019

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…(11) 41.09 (39) 672 (11) 46.52 (37) 185 (11) 2.762 (22) Bi-214, β t disintegration 3275 (11) 19.67 (20) 1894 (11) 7.45 (5) 1729 (1) 3.12 (4) 1542 (11) 17.494 (36) 1508 (11) 17.10 (8) 1425 (11) 8.147 (28) 1255 (11) 2.449 (10) 1153 (11) 4.339 (18) 1068 (11) 5.642 (43) 824 (11) 2.76 (6) Po-214, α disintegration 7833.24 (6) 99.9895 (7) 4 Alpha and beta emission probabilities A knowledge of alpha and beta direct emission probabilities is important, but, for this decay chain, recent direct emission probability measurements cannot be found in the literature. The unique measurements found were those given, for example, by Walen [23,24], Bastin-Scoffier (without uncertainties) [25] and LaMont [31] for alpha probabilities or by Hiessberger [26], Weinzierl [27] and Walen [23] (without uncertainties) for beta probabilities.…”

Section: Emission and Transition Probabilities Of The Major Gamma-raysmentioning

confidence: 81%

“…For these reasons, the recommended values of alpha and beta emission probabilities for most of the nuclides in the Ra-226 chain (except for Po-218 [24]) were deduced from the gamma-ray transition probabilities balance at each level of the individual decay scheme and shown in table 4.…”

Section: Emission and Transition Probabilities Of The Major Gamma-raysmentioning

confidence: 99%