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

Isotope Result

Yield Results for a = 205 m = 0 z = 87

Isotope Properties





Isotope Properties
Fr205g
Half-Life 3.92 s Energy [MeV] 0 Abundance [%]
Spin (9/2-) Mass Exc. [MeV] -1.30981 Decay Mode A
Atomic Mass 204.999 Binding Energy [MeV] 7.74569 Branching [%] <=100

Yield Data





Isotope/ Isomer
Half-life
A/q
Target Material
Ion Source
Facility
Yield Results [1/s]
Individual Results
Avg. Value
Fr205g 3.92 s 205.00 Th Re surface ISAC 1.521e+5 details
Fr205g 3.92 s 205.00 U Re surface ISAC 2.241e+6 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
2014-11-23 Fr205g 205.00 1 3.92 s 8.82e+4 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2014-11-15 Fr205g 205.00 1 3.92 s 2.41e+5 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2014-11-16 Fr205g 205.00 1 3.92 s 1.27e+5 9.8 ITW-TM1-ThO#1-LP-SIS Re surface ISAC
2011-9-11 Fr205g 205.00 1 3.92 s 4.10e+4 1.9 UCx #2 Re surface ISAC
2013-7-15 Fr205g 205.00 1 3.92 s 3.97e+6 8 ITW-TM1-UCx#6 Re surface ISAC
2014-9-2 Fr205g 205.00 1 3.92 s 5.39e+6 9.8 ITE-TM4-UCx#10-LP-SIS Re surface ISAC
2012-9-2 Fr205g 205.00 1 3.92 s 1.60e+6 9.8 ITW-TM1-UCx04 Re surface ISAC
2011-12-3 Fr205g 205.00 1 3.92 s 2.15e+5 9.8 UCx #3 Re surface ISAC
2013-9-16 Fr205g 205.00 1 3.92 s 7.11e+5 8 ITW-TM1-UCx#7 Re surface ISAC
2012-11-1 Fr205g 205.00 1 3.92 s 6.00e+6 9.8 ITE-TM4-UCx#5 Re surface ISAC
2008-9-17 Fr205g 205.00 1 3.92 s 1.80e+2 1.9 UO2 #1 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 11:46:22 GMT-0800 (Pacific Standard Time)