Science with Ultracold Neutrons at the MLZ

Session

UCN Sources

Oct 8, 2025, 9:15 AM

UYG 02 22 - Pforte (MLZ campus Garching)

1. First ultracold neutrons from the new TUCAN source at TRIUMF

Ruediger Picker (TRIUMF)

10/8/25, 11:15 AM

Talk

The TUCAN collaboration is developing a next-generation spallation-based ultracold neutron (UCN) source at TRIUMF to supply high-density UCNs for fundamental physics experiments. The source's design leverages protons from TRIUMF's 500-MeV cyclotron and a large flux of cold neutrons created by a room-temperature heavy water moderator and a liquid deuterium shell, which then feed a superfluid...

3. PULSTAR UCN source and SFnEDM test bed

Ekaterina Korobkina (NC State University)

10/8/25, 10:30 AM

Talk

First part of my talk will be an update on status of the PULSTAR UCN source commissioning at NC State University. Last year we verified expected thermal neutron flux with a real source assembly and tested gamma shielding. This year we are assembling source for the final installation in the thermal column enclosure. A first test of UCN production has been approved by the reactor and...

10. SuperSUN

Skyler Degenkolb (Universität Heidelberg)

10/8/25, 11:45 AM

21. The Munich UCN source

Dr Andreas Frei (FRM II - TUM)

10/8/25, 9:15 AM

Talk

In this talk the current status of the UCN source project at the FRM II will be presented. Expected values for UCN density and UCN flux will be discussed. Further steps to install the source and take it into operation will be shown.

5. UCN intensity at the PSI UCN source

Bernhard Lauss (Paul Scherrer Institut)

10/8/25, 10:00 AM

Talk

I will report on different measurements which were conducted over many years to understand operation and UCN output of the PSI UCN source.
This was done also with simulation analysis of neutron production and UCN transport.

14. LANL UCN Source

Takeyasu Ito (Los Alamos National Laboratory)

Talk