Wow, neutrons are pretty cool! No radiation damage--and time
resolution? I guess this is since they have much higher energy, and
are measurable individually? What are the numbers for fluxes
(neutrons/sec)? Are the neutrons all at one energy, or is there a
bandwidth?
JPK
> With X-rays, Laue diffraction leads to some systematic overlap as
> reflections from different wavelengths fall on the same detector position,
> and this cuts into completeness.
>
> With neutrons, it is possible to use a time-resolved detector such that all
> events are time-stamped, and the reflections from lower energy neutrons do
> not overlap with those of higher energy neutrons (neutrons having measurable
> mass, and thus noticable velocity differences). I know that this is
> possible, I do not know whether it is commonplace.
>
> See, for example:
> Protein crystallography with spallation neutrons: the user facility at Los
> Alamos Neutron Science Center (2004) P. Langan, G. Greene & B.P. Schoenborn,
> J. Appl. Cryst. 37(1) 24-31.
>
>
> --
> =======================================================================
> All Things Serve the Beam
> =======================================================================
> David J. Schuller
> modern man in a post-modern world
> MacCHESS, Cornell University
> [log in to unmask]
>
--
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Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
cel: 773.608.9185
email: [log in to unmask]
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