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Table 2 Level of thermal fluence (calories/cm2) and corresponding overpressure (psi) for different sized nuclear weapons

From: Nuclear war between Israel and Iran: lethality beyond the pale

Weapon size, Height of Burst (HOB) Fission fraction (FF) 15 Kt 35 m; 1.0 50 Kt 55 m 0.8 100 Kt 70 m 0.8 250 Kt 95 m 0.8 500 Kt 120 m 0.8
Thermal Effect Fluence psi Fluence Psi Fluence psi Fluence psi Fluence psi
Fires Highly Probable (Binninger) 23 4.6 26 4.1 29 3.8 32 3.6 35 3.6
Fires Probable (Binninger) 12 2.8 13 2.5 15 2.4 16 2.4 18 2.4
Mass Fires Likely (Eden/Postol) 10 2.5 11 2.3 12 2.2 14 2.2 15 2.2
3rd Degree Burns (50% chance) 7.4 2.1 8.1 1.9 8.5 1.8 8.9 1.7 9.3 1.8
2nd Degree Burns (50% chance) 4.8 1.2 5.2 1.3 5.5 1.4 5.8 1.4 6.0 1.4
1st Degree Burns (50% chance) 2.4 0.8 2.6 0.9 2.7 1.0 2.9 1.0 3.0 1.1