Is there any nuclear radiation during the explosion of the hydrogen bomb? why?

Answer 1

yes there is tons of radiation given off because of the fission reaction
The high explosives surrounding the core of the primary fire, compressing the fissile material into a supercritical state and beginning the fission chain reaction.
The fissioning primary emits x-rays at the speed of light, which "reflect" along the inside of the casing, irradiating the polystyrene foam
The irradiated foam undergoes a phase transition, becoming a hot plasma, pushing against the tamper of the secondary, compressing it tightly, and beginning the fission reaction in the spark plug.
Pushed from both sides (from the primary and the spark plug), the lithium deuteride fuel is highly compressed and heated to thermonuclear temperatures, and begins a fusion reaction.
The fuel undergoing the fusion reaction emits a large flux of neutrons, which irradiates the uranium-238 tamper (or the uranium-238 bomb casing), begins to itself undergo a fission reaction, providing about half of the total energy.

http://en.wikipedia.org/wiki/Hydrogen_bomb
go to this website it will help tons!!

Answer 2

Yes.
The basic reaction in a hydrogen bomb is D + T -> He4 + n + energy. Here D and T are the heavy isotopes of hydrogens with one and two neutrons added. The energy goes into the acceleration of the particles coming of, as well as a lot of gamma radiation.
Secondly, as another answerer wrote, the hydrogen bomb is set off by a fission bomb, but the amount of radiation liberated here is much smaller.

Answer 3

yes. Because an atomic bomb (fission) is used to get the hydrogen bomb (fusion) going.