Canada's particle accelerator centre
Centre canadien d'accélération des particules
Centre canadien d'accélération des particules
Isotope Result
Yield Results for a = 222 m = 0 z = 87
Isotope Properties
Isotope Properties
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|||||
|---|---|---|---|---|---|
| Fr222g | |||||
| Half-Life | 14.20 m | Energy [MeV] | 0 | Abundance [%] | |
| Spin | 2- | Mass Exc. [MeV] | 16.3498 | Decay Mode | B- |
| Atomic Mass | 222.018 | Binding Energy [MeV] | 7.69107 | Branching [%] | 100 |
Yield Data
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Isotope/ Isomer
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Half-life
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A/q
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Target Material
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Ion Source
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Facility
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Yield Results [1/s]
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Individual Results
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
Avg. Value
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| Fr222g | 14.20 m | 222.00 | Th | Re surface | ISAC | 7.124e+6 | details | |||||
| Fr222g | 14.20 m | 222.00 | U | Re surface | ISAC | 1.019e+7 | details | |||||
| Fr222g | 14.20 m | 222.00 | U | FEBIAD | ISAC | 1.700e+5 | details |
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Date
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Isotope/ Isomer
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A/q
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Charge State
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Half-life
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Yield [1/s]
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p+ Current [μA]
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Target
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Ion Source
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Facility
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Comment
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|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014-11-20 | Fr222g | 222.00 | 1 | 14.20 m | 4.71e+6 | 9.8 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | ||
| 2014-11-21 | Fr222g | 222.00 | 1 | 14.20 m | 3.47e+6 | 9.8 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | ||
| 2014-11-22 | Fr222g | 222.00 | 1 | 14.20 m | 3.62e+6 | 9.8 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | ||
| 2014-11-23 | Fr222g | 222.00 | 1 | 14.20 m | 3.52e+6 | 9.8 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | ||
| 2014-11-23 | Fr222g | 222.00 | 1 | 14.20 m | 1.51e+3 | 0 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | TGHT 300A; protons off since 11:50 | |
| 2014-11-23 | Fr222g | 222.00 | 1 | 14.20 m | 9.15e+2 | 0 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | TGHT 230A; protons off since 11:50 | |
| 2014-11-15 | Fr222g | 222.00 | 1 | 14.20 m | 2.03e+7 | 9.8 | ITW-TM1-ThO#1-LP-SIS | Re surface | ISAC | ||
| 2016-8-17 | Fr222g | 222.00 | 1 | 14.20 m | 1.27e+7 | 9.8 | ITE-TM4-UC#17-LP-SIS | Re surface | ISAC | ||
| 2025-9-4 | Fr222g | 222.00 | 1 | 14.20 m | 3.88e+7 | 10 | ITW-TM4-UC#50-LP-SIS | Re surface | ISAC | ||
| 2011-9-11 | Fr222g | 222.00 | 1 | 14.20 m | 1.40e+5 | 1.9 | UCx #2 | Re surface | ISAC | ||
| 2010-12-8 | Fr222g | 222.00 | 1 | 14.20 m | 1.30e+7 | 1.9 | UCx #1 | Re surface | ISAC | ||
| 2011-12-3 | Fr222g | 222.00 | 1 | 14.20 m | 1.87e+6 | 9.8 | UCx #3 | Re surface | ISAC | ||
| 2013-9-16 | Fr222g | 222.00 | 1 | 14.20 m | 4.79e+6 | 8 | ITW-TM1-UCx#7 | Re surface | ISAC | ||
| 2008-9-17 | Fr222g | 222.00 | 1 | 14.20 m | 2.30e+4 | 1.9 | UO2 #1 | Re surface | ISAC | ||
| 2012-8-1 | Fr222g | 222.00 | 1 | 14.20 m | 1.70e+5 | 9.8 | ITE-TM4-UO2#3 | FEBIAD | ISAC |
(*) Average value of selected yield results, click 'details' to display individual results.
Beam Development
Records retrieved on Fri Feb 13 2026 11:46:25 GMT-0800 (Pacific Standard Time)