You are in a ship about 20 km from a nuclear detonation. Your ship is subject to a burst of gamma at about 4000 joules per square meter, about 3 times the brightness of the sun, had the energy instead been in the visible light spectrum. Your sensors - and your hull - are briefly ionized as a result of the gamma burst, presumably briefly acting like solar collectors to deliver a sudden brief surge at or near 4 kws per square meter. What happens? Is it reasonable for sensors designed to detect the faint emanations of a ship a lightsecond away to survive the gamma flash of a bomb 20 km away? Does the surge affect the ship's electrical grid?