Hi, is there anyone that can tell how neutrons are accelerated for experimental use.
Hi, and welcome to PF
neutrons basically can not be accelerated. You need a neutron source. Roughly, you take huge nuclei, throw bunches of high-energy (so-called spallation) smaller guys, then somehow getting rid of anything charged you end up with only neutrons going out of your source.
Neutron beams may be generated 1) from nuclear reactors, but there is a broad spectrum of energies, 2) from fusion reactions, e.g. d+t -> alpha (3.5 MeV) + n (14.1 MeV), or 3) from spallation (p,n) reactions, in which accelerated protons are used to knock neutrons out of nuclei.
That said, what people often do is accelerate beams of deuterium (one proton + one neutron) and beams of protons, and subtract the off the proton measurement. It's not quite the same as a beam of neutrons, but it's close.
Thanks for the answers.
You can accelerate deuterons into a thin target that strips the proton, leaving a high energy neutron beam.
Do you know what kind of targets one can use for this purpose?
This paper describes generating a 50 MeV neutron beam:
Higher energy neutron beams are now produced at Los Alamos. A paper with this beam is:
Phys. Rev. C 75, 031001 (2007). They describe it as:
"At the LANSCE-WNR facility at the Los Alamos National
Laboratory, a pulsed neutron beam is produced by an 800-MeV
proton beam incident on a 7.5-cm-long water-cooled tungsten
This neutron beam experiment finally confirms theoretical predictions from 1972.
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