He-H interactions
N. Ialovega's experiment
nb=cb⋅f⋅A(⟨rb⟩)
n_b = c_b \cdot f \cdot A(\langle r_b \rangle)
sitesm−2
\mathrm{sites \, m^{-2}}
bubblesm−3
\mathrm{bubbles \, m^{-3}}
m2
\mathrm{m^{2}}
nb
n_b
cb
c_b
tuning parameter
f
f
⟨rb⟩=rHe0V1+(4π32a034⟨ib⟩)1/3−(4π32a03)1/3
\langle r_b \rangle = r_\mathrm{He_0 V_1} + \left( \frac{3}{4\pi} \frac{a_0^3}{2} \frac{\langle i_b \rangle}{4} \right) ^{1/3} - \left( \frac{3}{4\pi} \frac{a_0^3}{2} \right) ^{1/3}
bubbles radius
A=4π⟨rb⟩2
A = 4 \pi \langle r_b \rangle ^2
bubbles area
f=3×1018m−2
f = 3 \times 10 ^{18} \mathrm{m ^{-2}}
Bubbles
Initial state
He implantation
He implantation
Secondary defects (eg created by stress fields)
He implantation
1st H implantation
1st H implantation
1st H implantation
These defects are saturated
1st TDS
1st TDS
H is desorbed from bubbles
1st TDS
H is desorbed from bubbles
1st TDS
He is removed from secondary defects
1st TDS
He is removed from secondary defects
2nd H implantation
2nd H implantation
2nd H implantation
2nd TDS
2nd TDS
H desorption from secondary defects
2nd TDS
H desorption from secondary defects
Repeat...
Bursting in he_fenics
kburst=e−x
k_\mathrm{burst} = e^{-x}
∂t∂cb=k1,N+c1cN
\frac{\partial c_b}{\partial t} = k_ {1,N}^+ c_1 c_N \\
∂t∂(⟨ib⟩cb)=(N+1)k1,N+c1cN+⟨kb+⟩c1cb−⟨ib⟩kburstcb
\frac{\partial (\langle i_b \rangle c_b)}{\partial t} = (N+1)k_ {1,N}^+ c_1 c_N + \langle k_b^+ \rangle c_1 c_b \\ - \langle i_b \rangle k_\mathrm{burst} c_b
Bursting in he_fenics
Bursting in he_fenics
Bursting in he_fenics
Bursting in he_fenics
Please ignore this
Bursting in he_fenics
kburst=f⋅(1−(x−⟨rb⟩)/x)
k_\mathrm{burst} = f \cdot (1 - (x - \langle r_b \rangle)/x)
f=2×108
f = 2 \times 10^8
Bursting in he_fenics
Bursting in he_fenics
Bursting in he_fenics
Please ignore this
Bursting in he_fenics
Adding <m>
Adding <m>
Adding <m>
He-H interactions
He-H interactions
By Remi Delaporte-Mathurin
He-H interactions
- 370
