Ahh,the good old days when we used a flathead screwdriver to hold neutron reflectors apart instead of shims, because nothing makes you feel like a real man (or -woman) from the adrenaline rush caused by holding a core at near-criticality in an unstable setup; should the screwdriver slip out from under the top reflector, it would mean a slow, agonizing death to everyone in the room.
Ahh,the good old days when we used a flathead screwdriver to hold neutron reflectors apart instead of shims, because nothing makes you feel like a real man (or -woman) from the adrenaline rush caused by holding a core at near-criticality in an unstable setup; should the screwdriver slip out from under the top reflector, it would mean a slow, agonizing death to everyone in the room.