Canada's particle accelerator centre
Centre canadien d'accélération des particules

Isotope Result

Yield Results for a = 229 m = 0 z = 87

Isotope Properties





Isotope Properties
Fr229g
Half-Life 50.20 s Energy [MeV] 0 Abundance [%]
Spin Mass Exc. [MeV] 35.6744 Decay Mode B-
Atomic Mass 229.038 Binding Energy [MeV] 7.61831 Branching [%] 100

Yield Data





Isotope/ Isomer
Half-life
A/q
Target Material
Ion Source
Facility
Yield Results [1/s]
Individual Results
Avg. Value
Fr229g 50.20 s 229.00 Th Re surface ISAC 4.950e+3 details
Fr229g 50.20 s 229.00 U Re surface ISAC 1.336e+5 details

Sorry, no data found.

Date
Isotope/ Isomer
A/q
Charge State
Half-life
Yield [1/s]
p+ Current [μA]
Target
Ion Source
Facility
Comment
2014-11-20 Fr229g 229.00 1 50.20 s 4.73e+3 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2014-11-23 Fr229g 229.00 1 50.20 s 4.02e+3 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2014-11-23 Fr229g 229.00 1 50.20 s 3.72e+3 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2014-11-15 Fr229g 229.00 1 50.20 s 7.33e+3 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2008-9-17 Fr229g 229.00 1 50.20 s 4.00e+1 1.9 UO2 #1 Re surface ISAC
2015-5-24 Fr229g 229.00 1 50.20 s 4.84e+5 9.8 ITW-TM1-UCx#12-LP-SIS Re surface ISAC
2011-9-11 Fr229g 229.00 1 50.20 s 9.20e+2 1.9 UCx #2 Re surface ISAC
2019-12-15 Fr229g 229.00 1 50.20 s 6.44e+4 14 ITW-TM4-UC#29-LP-SIS Re surface ISAC
2010-12-8 Fr229g 229.00 1 50.20 s 3.40e+4 1.9 UCx #1 Re surface ISAC
2011-12-3 Fr229g 229.00 1 50.20 s 2.47e+3 9.8 UCx #3 Re surface ISAC
2013-9-16 Fr229g 229.00 1 50.20 s 1.74e+4 8 ITW-TM1-UCx#7 Re surface ISAC
2017-9-23 Fr229g 229.00 1 50.20 s 1.53e+5 9.8 ITE-TM4-UC#21-LP-SIS Re surface ISAC
2017-9-23 Fr229g 229.00 1 50.20 s 8.97e+4 9.8 ITE-TM4-UC#21-LP-SIS Re surface ISAC
2017-9-23 Fr229g 229.00 1 50.20 s 1.40e+5 9.8 ITE-TM4-UC#21-LP-SIS Re surface ISAC
2015-5-24 Fr229g 229.00 1 50.20 s 4.84e+5 9.8 ITW-TM1-UCx#12-LP-SIS Re surface ISAC

(*) Average value of selected yield results, click 'details' to display individual results.



Beam Development





Sorry, no data found.



Records retrieved on Fri Feb 13 2026 11:48:52 GMT-0800 (Pacific Standard Time)