Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease

Details Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease

2008-01-31

arxiv.org/abs/0801.4839v1

Physics

Nuclear Physics

Nuclear Experiment

11 pages, 6 figures

Scientific paper

We report experiments on the production of ultracold neutrons (UCN) in a converter of superfluid helium coated with fluorinated grease. We employed our technique of window-free extraction of accumulated UCN from the helium, in which they were produced by downscattering neutrons of a cold beam from the Munich research reactor. The time constant for UCN passage through the same extraction aperture as in a previous experiment was a factor two shorter, despite a lower mean velocity of the accumulated UCN in the present experiments. A time-of-flight measurement of the cold neutron spectrum incident on the converter allowed us to estimate the multi-phonon contribution to the UCN production. The UCN production rate inferred from two methods agrees with the theoretical expectation.

Affiliated with

Also associated with

No associations

Rating

Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accumulation and extraction of ultracold neutrons from a superfluid helium converter coated with fluorinated grease will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-204189