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

Isotope Result

Yield Results for a = 139 m = 1 z = 62

Isotope Properties





Isotope Properties
Sm139m
Half-Life 10.70 s Energy [MeV] 0.4574 Abundance [%]
Spin 11/2- Mass Exc. [MeV] -71.9228 Decay Mode EC+B+,IT
Atomic Mass 138.922 Binding Energy [MeV] 8.24308 Branching [%] 6.3,93.7

Yield Data





Isotope/ Isomer
Half-life
A/q
Target Material
Ion Source
Facility
Yield Results [1/s]
Individual Results
Avg. Value
Sm139g 2.57 m 139.00 Ta Re surface ISAC 6.845e+7 details
Sm139g 2.57 m 139.00 Ta TRILIS Re surface ISAC 2.100e+8 details
Sm139m 10.70 s 139.00 Ta Re surface ISAC 1.681e+7 details
Sm139m 10.70 s 139.00 Ta TRILIS Re surface ISAC 4.980e+7 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
2016-6-5 Sm139g 139.00 1 2.57 m 1.34e+8 60 ITW-TM2-Ta#48-HP-SIS Re surface ISAC
2005-4-1 Sm139g 139.00 1 2.57 m 2.90e+6 10 Ta #12 Re surface ISAC
2016-6-3 Sm139g 139.00 1 2.57 m 9.36e+7 60 ITW-TM2-Ta#48-HP-SIS TRILIS Re surface ISAC
2016-6-5 Sm139g 139.00 1 2.57 m 2.10e+8 60 ITW-TM2-Ta#48-HP-SIS TRILIS Re surface ISAC
2025-12-6 Sm139g 139.00 1 2.57 m 2.22e+5 40 TW-TM4-Ta#71-LP-IGLIS IG-LIS ISAC
2016-6-5 Sm139m 139.00 1 10.70 s 3.34e+7 60 ITW-TM2-Ta#48-HP-SIS Re surface ISAC
2005-4-1 Sm139m 139.00 1 10.70 s 2.10e+5 10 Ta #12 Re surface ISAC
2016-6-5 Sm139m 139.00 1 10.70 s 4.98e+7 60 ITW-TM2-Ta#48-HP-SIS TRILIS 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 11:50:25 GMT-0800 (Pacific Standard Time)