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UCN Source

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Components of the PSI UCN Source

Neutrons are produced in a short pulse of the full 2.2 mA, 590 MeV PSI proton beam on a spallation target. The fast neutrons are moderated, cooled, and finally down-scattered into UCN in solid ortho-deuterium. UCN are extracted from the solid deuterium and guided into a diamond-like carbon (DLC) coated large storage volume from which they can be extracted into experiments. After the proton beam pulse, the production and storage volumes are separated by a shutter, allowing for UCN storage times of the order of magnitude comparable to the lifetime of the free neutron.


Download document as pdf See more: Ultracold neutron production at the second spallation target of the Paul Scherrer Institute (web).

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Contact

Dr. Bertrand Blau

Telephone:
+41 56 310 32 91
E-mail:
bertrand.blau@psi.ch


UCN proposals and beamtime requests for hardware testing

Prof. Klaus Kirch

Telephone:
+41 56 310 32 78
E-mail:
klaus.kirch@psi.ch

Dr. Bernhard Lauss

Telephone:
+41 56 310 46 47
E-mail:
bernhard.lauss@psi.ch

Live Status Information

Realtime status of the PSI proton accelerator.


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  • Proton Irraditation Facility (PIF)
  • Ultra Cold Neutrons Source (UCN)
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Job Opportunities at Research Division NUM.

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Overview Scientific Events at LTP.
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