Dr
Ekaterina Korobkina
(NC State University)
04/11/2014, 10:50
Oral
The Ultra cold Neutron source at the PULSTAR reactor on the campus of NC State University is presently in the commissioning stage. Measurements of the cryostat cooling power proved that the LHe system will be able to take the predicted radiation loads in all heat exchangers of the system. In future, the source will host an experimental test-bed apparatus to study systematic EDM effects, using...
Mr
Dieter Ries
(PSI)
04/11/2014, 11:30
Oral
The UCN source at the Paul Scherrer Institute is in operation since 2011 and
providing UCN e.g. to the neutron EDM experiment.
The operation principle of the source and the way of UCN production will
be explained. The current status of the source and the progress made
since start-up, will be presented, together with ongoing optimizations
and measurements to characterize individual...
Mr
Thorsten Zechlau
(FRMII)
04/11/2014, 15:00
Since several years a powerful UCN source is under development and construction at the FRMII reactor in munich. In order to deliver UCN produced inside the reactor (in a solid Deuterium converter) to experiments 30m away, a dedicated UCN guide System is required.
In the last years available guide options were tested. This talk will give an overview on latest results obtained from the test of...
Dr
Jed Leggett
(ORNL)
04/11/2014, 15:30
Oral
The nEDM@SNS simulations team has developed Geant4 based simulations of several key
aspects of the experiment including: i) neutron-3He capture signal, ii) several sources of
background (neutron activation, cosmic rays, neutron beta decay, etc.), iii) light collection
(scintillation, wavelength shifting, and detailed photon propagation), iv) 3He spin precession,
and v) UCN production in...
Blair Jamieson
(University of Winnipeg)
04/11/2014, 16:20
Oral
A high intensity UCN source, and an experiment to measure the neutron
Electric Dipole Moment (nEDM) are being developed for TRIUMF. Some new
physics predict nEDM contributions both above the present limit on the
nEDM leading to their abandonment, and just below the present limit
there are several other models vulnerable to the same fate. This talk
will present the research and...
Mr
thomas lefort
(University of Caen)
04/11/2014, 16:45
Oral
A fast detector (NANOSC) and a simultaneous spin analyzer (USSA) have been built for the nEDM experiment at PSI. The detector is based on 6Li depleted glass scintillators (GS30) glass stuck to the front of 6Li enriched glass scintillators (GS20). With such a combination, the edge effects, inherent to low energy neutron detection, are suppressed and a clear separation between the gamma and the...
Dr
Geza Zsigmond
(Paul Scherrer Institut)
04/11/2014, 17:10
Oral
The MCUCN and STARucn codes for tracking ultracold neutron trajectories and spin were developed in order to perform optimization studies for UCN optics, and also for simulations supporting studies on nEDM experiment systematics.
In this presentation we will briefly explain capabilities, algorithms, present inter-comparison calculations and analytic benchmarks performed with both...
