17F

β+-Decay Evaluated Data



Measurements
1949BR27: 17F.
1954KO54: 17F.
1954WO20: 17F.
1958AR15: 17F.
1960JA12: 17F; measured not abstracted; deduced nuclear properties.
1969GA05: 17F; measured Iγ; deduced log ft, β-branching. 17O deduced levels.
1969WO09: 17F; measured T1/2.
1972AL42: 17F; measured T1/2.
1977AL20: 17F; measured T1/2.
1977AZ01: 17F; measured T1/2.
1987SEZL, 1987SEZR, 1988SE11: 17F(β+); measured β-anisotropy.
1989SE07: 17F(β+); measured β(θ), oriented nuclei.
1990FUZQ, 1991MAZL, 1992MI13, 1993MI33: 17F(β+); measured β-NMR spectra asymmetry change in NaF; deduced μ.
2007ZH03: 17F(β+), (EC); measured β-NMR spectra. 17F deduced quadrupole moment.
2015GR14: 17F(β+), (EC); measured Eβ, Iβ, Eγ, half-lives of the ground states; deduced Ft.
2016BR01: 17F(β+); measured β radiation, half-life.
Measured half-life for 17F(β+)17O

Recommended value (April, 2016): 64.385 ± 0.053 sec (Weighted Average (external uncertainty) of 1977AL20, 1977AZ01, 2015GR14 and 2016BR01)
Summary Table of Uncertainty Analysis: Table 17F preview (PDF)
Note: The weighted average of all values:   64.427 ± 0.080 sec Table 17F preview (PDF); Summary chart of all values:  Table 17F preview (PDF)  
Measured values: 64.402 ± 0.039 sec (2016BR01)
64.347 ± 0.035 sec (2015GR14)
64.80 ± 0.12 sec (1977AL20)
64.31 ± 0.09 sec (1977AZ01)
64.50 ± 0.25 sec (1972AL42)
65.2 ± 0.2 sec (1969WO09)
66.0 ± 0.2 sec (1960JA12)
66.6 ± 0.5 sec (1958AR15, 1954KO54)
62.5 ± 1.0 sec ( 1954WA1A)
66.0 ± 1.8 sec ( 1954WO20)
66.3 ± 1 sec    ( 1951LA1A)
66 ± 1 sec ( 1949BR27)
Other Reviews: 64.61 ± 0.17 sec (2008SE10)
64.73 ± 0.33 sec (Our analysis in September, 2015)
64.374 ± 0.082 sec (Our analysis in December, 2015)

Previous Measurements

 

Decay to 17O (MeV) Upper Limit Branching Ratio (%) log ft E(max) (MeV)
(1963AR1B) (1969GA05) (1954WO20) (1969GA05) (1972AL42) a b c (1954WO20)
0     3.38   3.488 ± 0.001 3.358 ± 0.002 3.36 1.748 ± 0.006
0.87 4 x 10-4 < 3.4 x 10-4 > 4.3      > 5.6     
a) Using T1/2 = 64.50 ± 0.25 sec.
b) Using T1/2 = 64.49 ± 0.16 sec.
c) Using T1/2 = 66.0 ± 0.2 sec (1971AJ01).

17B(β-)17C Evaluated Data

17C(β-)17N Evaluated Data

17N(β-)17O Evaluated Data

17Ne(β+)17F Evaluated Data

A = 17 Beta-Decays Diagram

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Last modified: 21 May 2018