The difference between fast and slow neutrons is in the amount of energy they possess. Fast neutrons tend to "blow through" the nucleus of some isotopes. This causes a disruption but, because they don't stay around, the nucleus restabilizes. Slow, or thermal, neutrons, however, may get absorbed by the same nucleus, which then destabilizes, causing fission.
It should be pointed out that nuclei of different isotopes are affected differently by neutrons. 238U is caused to divide more frequently by a faster neutron, while 235U is caused to divide more frequently by thermal (slower) neutrons, and 233U is caused to divide more or less equally by any.
Fast frequency hopping spread spectrum (FHSS) systems switch between frequencies rapidly, usually several times per second, to avoid interference and jamming. Slow FHSS systems switch between frequencies less frequently, providing a more predictable and stable connection but potentially making them more vulnerable to interference.
Slow frequency-hopping spread spectrum (FHSS) systems hop between frequencies at a lower rate, typically around 1-5 hops per second, while fast FHSS systems hop at a higher rate, often over 20 hops per second. The main difference lies in the speed of frequency hopping, with fast FHSS providing increased resistance to interference and higher data transmission rates compared to slow FHSS systems.
A moderator in a nuclear reactor slows down fast-moving neutrons to increase the likelihood of fission reactions. By reducing the speed of neutrons, the moderator helps maintain a chain reaction within the reactor core. This process helps control the nuclear reaction and sustain the reactor's power output.
uranium 238 is a fast neutron absorber the answer is correct but for more explanation:- when uranium 238 is bombard by neutron >>> uranium 238 , undergoes B decay>>>Np 239 ,undergoes B decay >>> Pu 239 finally undergoes alpha decay >>> fissile U
a moderator would slow the neutrons, hindering breeding
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One is thrown slow and the other is thrown fast.
in reacter U-235 fission is due to slow neutrons because in reacter the probability of fission from fast neutron is approximatly zero.
Yes, in fact for a sustainable nuclear chain reaction to work, you have to slow neutrons down.
In a business presentation the points of interest change through the presentation. How fast the screen presentation changes depends on whether you use fast fade between slides or slow fade
a fish is fast and breathes in water and a turtel is slow and green
No, moderation of neutrons is not always used to slow nuclear fission. In some types of nuclear reactors, such as fast breeder reactors, fast neutrons are intentionally not moderated to slow down the fission process. These reactors operate using fast neutrons to sustain a chain reaction. However, in most commercial nuclear reactors, moderation of neutrons is employed to slow down the fission process and maintain a controlled chain reaction.
With a fast metabolism you burn fat faster and with a slow metabolism you burn fat slower. It's good to have a fast one because you don't have to watch what you eat as much.
U-235 can fission by absorbing fast or slow neutrons, but it has a much larger cross section for slow ones, that is it absorbs slow neutrons much more readily than fast ones. This enables moderated reactors to operate with low enriched (5% or less) or even natural uranium, whilst fast reactors must have much more highly enriched uranium, ie with more U-235. The ultimate is the nuclear bomb, where almost pure U-235 will fission entirely with fast neutrons, if enough of it is suddenly put together.
The armodillo moves in between fast and slow
A slow operation, another operation is fast.
Olden means of transports were slow and modern transports are fast.