BO-08-22-13
naturally occurring Isotope and their abundance
[math]\displaystyle{ {138 \atop\; }Ba(72%), {137 \atop\; }Ba(11%),{136 \atop\; }Ba (7.9%), {135 \atop\; }Ba(7%), {134 \atop\; }Ba(2%) }[/math]
Single neutron knockout
[math]\displaystyle{ {137 \atop\; }Ba (\gamma,8){136 \atop \; }Ba }[/math]
Neutron Separation Energy= Energy needed to liberate a neutron from the Nucleus
- =[math]\displaystyle{ S_n = B({138 \atop 56} Au_{118})-B({{136} \atop 55} Au_{117}) }[/math]
- [math]\displaystyle{ \left [79(1.007825 u) + 118 (1.008665 u) - 196.97 u\right ] \frac{931.5 MeV}{u} -\left [79(1.007825 u) + 117 (1.008665 u) - 195.967 u\right ] \frac{931.5 MeV}{u} }[/math]
- [math]\displaystyle{ =\left [(1.008665 u) - 196.9665516 u+ 195.9665513 u\right ] \frac{931.5 MeV}{u} = 5.3 MeV }[/math]
;Single proton knockout
[math]\displaystyle{ {137 \atop\; }Ba (\gamma,p){136 \atop \; }Cs }[/math]
Cs-136
1.2 MeV