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May 9, 2023
May 10, 2023
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Second Workshop on UCN and VCN Sources at ESS
from
Tuesday, May 9, 2023 (9:00 AM)
to
Wednesday, May 10, 2023 (6:00 PM)
Monday, May 8, 2023
Tuesday, May 9, 2023
9:00 AM
Welcome and ESS General Status
-
Helmut Schober
(
European Spallation Source
)
Welcome and ESS General Status
Helmut Schober
(
European Spallation Source
)
9:00 AM - 9:20 AM
Room: ESS auditorium
9:20 AM
ESS Science Update
-
Giovanna Fragneto
(
European Spallation Source ERIC
)
ESS Science Update
Giovanna Fragneto
(
European Spallation Source ERIC
)
9:20 AM - 9:45 AM
Room: ESS auditorium
9:45 AM
HighNESS project status
-
Valentina Santoro
(
European Spallation Source ERIC
)
HighNESS project status
Valentina Santoro
(
European Spallation Source ERIC
)
9:45 AM - 10:10 AM
Room: ESS auditorium
10:10 AM
Introduction to the HighNESS UCN/VCN sources designs
-
Luca Zanini
(
European Spallation Source ERIC
)
Introduction to the HighNESS UCN/VCN sources designs
Luca Zanini
(
European Spallation Source ERIC
)
10:10 AM - 10:35 AM
Room: ESS auditorium
10:35 AM
Coffee Break
Coffee Break
10:35 AM - 11:00 AM
Room: ESS auditorium
11:00 AM
UCN Source Solid Deuterium in the twister
-
Nicola Rizzi
(
Denmark Tekinske Universitet
)
UCN Source Solid Deuterium in the twister
Nicola Rizzi
(
Denmark Tekinske Universitet
)
11:00 AM - 11:25 AM
Room: ESS auditorium
11:25 AM
UCN Source SD2 in moderator cooling block
-
Blahoslav Rataj
(
European Spallation Source ERIC
)
UCN Source SD2 in moderator cooling block
Blahoslav Rataj
(
European Spallation Source ERIC
)
11:25 AM - 11:50 AM
Room: ESS auditorium
11:50 AM
Group photo
Group photo
11:50 AM - 12:00 PM
Room: ESS auditorium
12:00 PM
Lunch
Lunch
12:00 PM - 1:00 PM
Room: ESS auditorium
1:00 PM
UCN Source He-II in the moderator cooling block
-
Mathias Strothmann
(
Forschungszentrum Jülich GmbH
)
UCN Source He-II in the moderator cooling block
Mathias Strothmann
(
Forschungszentrum Jülich GmbH
)
1:00 PM - 1:25 PM
Room: ESS auditorium
1:25 PM
UCN source He-II In Large Beam Port
-
Mina Akhyani
(
Lunds University (IBAN)
)
UCN source He-II In Large Beam Port
Mina Akhyani
(
Lunds University (IBAN)
)
1:25 PM - 1:50 PM
Room: ESS auditorium
1:50 PM
UCN source He-II In beam
-
Richard Wagner
(
Institut Laue-Langevin - ILL
)
UCN source He-II In beam
Richard Wagner
(
Institut Laue-Langevin - ILL
)
1:50 PM - 2:15 PM
Room: ESS auditorium
2:15 PM
VCN source - clathrates
-
Shuqi Xu
VCN source - clathrates
Shuqi Xu
2:15 PM - 2:40 PM
Room: ESS auditorium
2:40 PM
VCN source in Twister-I
-
Nicola Rizzi
(
Denmark Tekinske Universitet
)
VCN source in Twister-I
Nicola Rizzi
(
Denmark Tekinske Universitet
)
2:40 PM - 3:05 PM
Room: ESS auditorium
3:05 PM
Coffee Break
Coffee Break
3:05 PM - 3:35 PM
Room: ESS auditorium
3:35 PM
VCN source in Twister -II
-
Ben Folsom
(
European Spallation Source ERIC
)
VCN source in Twister -II
Ben Folsom
(
European Spallation Source ERIC
)
3:35 PM - 4:00 PM
Room: ESS auditorium
4:00 PM
Diffraction-grating VCN interferometry and experimental search for neutron electric charge
-
Alexander Ioffe
Diffraction-grating VCN interferometry and experimental search for neutron electric charge
Alexander Ioffe
4:00 PM - 4:30 PM
Room: ESS auditorium
4:30 PM
VCN interferometry: Some history and (near) future perspectives
-
Juergen Klepp
VCN interferometry: Some history and (near) future perspectives
Juergen Klepp
4:30 PM - 5:00 PM
Room: ESS auditorium
5:00 PM
Opportunities with ultracold neutrons at the ESS
-
Skyler Degenkolb
Opportunities with ultracold neutrons at the ESS
Skyler Degenkolb
5:00 PM - 5:30 PM
Room: ESS auditorium
7:00 PM
Working Dinner at Grands Restauranger i Lund
Working Dinner at Grands Restauranger i Lund
7:00 PM - 10:00 PM
Wednesday, May 10, 2023
9:00 AM
The TRIUMF Ultra Cold Advanced Neutron source and nEDM experiment
-
Alexis Brossard
The TRIUMF Ultra Cold Advanced Neutron source and nEDM experiment
Alexis Brossard
9:00 AM - 9:30 AM
Room: ESS auditorium
The TRIUMF UltraCold Advanced Neutron (TUCAN) collaboration aims for the measurement of the neutron electric dipole moment (nEDM) with a one order of magnitude improvement of the current best limit. Ultra-cold neutrons (UCNs) suits for such experiment as they can be trapped and stored for several minutes. The collaboration works toward the completion of a new high-intensity UCN source. UCN are produced by a neutron spallation target driven by TRIUMF’s proton cyclotron and a combination of heavy water, liquid deuterium moderator and super-fluid 4He converter. This production scheme has been successfully demonstrated by a prototype UCN source operated from 2017-2019 at TRIUMF. With our newly upgraded source, a statistical nEDM sensitivity of 10−27 e⋅cm would be achieved in 400 days of data taking. The source will also deliver UCNs to a second port that will be open to proposals from users worldwide. This presentation will present an overview of the UCNs source and nEDM experiment installation at TRIUMF.
9:30 AM
New scattering kernels for solid deuterium and superfluid He4
-
Rolando Granada
(
Argentine Atomic Energy Commission
)
New scattering kernels for solid deuterium and superfluid He4
Rolando Granada
(
Argentine Atomic Energy Commission
)
9:30 AM - 10:00 AM
Room: ESS auditorium
10:00 AM
UCN extraction from Solid Deuterium Moderator
-
Ingo Rienaecker
UCN extraction from Solid Deuterium Moderator
Ingo Rienaecker
10:00 AM - 10:30 AM
Room: ESS auditorium
10:30 AM
Coffee break
Coffee break
10:30 AM - 10:55 AM
Room: ESS auditorium
10:55 AM
Countering gravity in a VCN SANS instrument
-
Mads Bertelsen
(
ESS DMSC
)
Countering gravity in a VCN SANS instrument
Mads Bertelsen
(
ESS DMSC
)
10:55 AM - 11:10 AM
Room: ESS auditorium
11:10 AM
Feasibility of a strong focusing synchrotron for neutron beams
-
Shyh-Yuan Lee
Feasibility of a strong focusing synchrotron for neutron beams
Shyh-Yuan Lee
11:10 AM - 11:30 AM
Room: ESS auditorium
We study the feasibility of storing cold neutron beams in a strong focusing synchrotron. We also propose an alternating-current (AC) dipole magnet to be used as a neutron acceleration device, and a pulsed quadrupole as a neutron beam kicker for injection and extraction. The AC acceleration device can provide adiabatic capture, acceleration or deceleration of neutron beams. It seems feasible to design a high quality neutron synchrotron for many future neutron beam applications, such as neutron life time measurements, “monoenergetic” neutron scattering experiments, pencil neutron beam applications, etc.
11:30 AM
Discussion on UCN/VCN source
Discussion on UCN/VCN source
11:30 AM - 12:15 PM
Room: ESS auditorium
12:15 PM
Discussion on a next call and close out
-
Valentina Santoro
(
European Spallation Source ERIC
)
Discussion on a next call and close out
Valentina Santoro
(
European Spallation Source ERIC
)
12:15 PM - 12:30 PM
Room: ESS auditorium
12:30 PM
Lunch
Lunch
12:30 PM - 1:30 PM
Room: ESS auditorium
1:30 PM
Site Visit
Site Visit
1:30 PM - 4:00 PM
Room: ESS auditorium