BCC Tungsten Crystal Lattice Viewport [100]
Cascades: 12 PKAs Active
W Lattice
PKA / Recoil
Vacancy
Interstitial
Melt Zone
Recoil Energy
250 keV
PKA Injections
12
Lattice Temp
573 K
Impact Angle
45°
Defect Regime & Embrittlement Analysis
Non-linear NRT Deviation
Active Regime
Superlinear Cascade Overlap
Damage Scaling Exponent (n)
1.38
Frenkel Pairs Generated
1,420
Surviving Defect Fraction
0.342
Monovacancies / Di-vacancies
284 / 76
Large Clusters (>10 pts)
28
Tokamak Wall Degradation Risk
Elevated Swelling & Embrittlement
Damage Scaling Law vs Recoil Energy
Superlinear Regime Discovery: At 250 keV recoil energies, dense subcascades overlap before kinetic quenching occurs. High local energy density creates a persistent thermal spike melt zone that suppresses immediate in-cascade recombination, causing defect production to surge superlinearly ($N_d \propto E^{1.38}$) compared to classical sublinear NRT/arc-dpa expectations.