It seems to me the beryllium reflector needs to be made in a way to crush the U239. Because the high explosives is in a shape charge it hits the beryllium reflector all the presser is pushing on the reflector and not the core. Therefor the reflector must be made to ratch down to a smaller sphere volume. That compresses of the U239. Also, this would help in the difference of time of the High explosive going off.
It seems to me the beryllium reflector needs to be made in a way to crush the U239. Because the high explosives is in a shape charge it hits the beryllium reflector all the presser is pushing on the reflector and not the core. Therefor the reflector must be made to ratch down to a smaller sphere volume. That compresses of the U239. Also, this would help in the difference of time of the High explosive going off.
5 watts output! That I didn't know and its funny.
The Chicago Pile ran at .5W.