Second Workshop on UCN and VCN Sources at ESS

Europe/Stockholm
ESS auditorium

ESS auditorium

European Spallation Source Partikelgatan 2, 224 84 Lund
Description

Last year we held a HighNESS/LENS UCN/VCN workshop at the https://indico.esss.lu.se/event/2810/ where experts from various laboratories and Universities have gathered to propose and discuss ideas and challenges for the development of these sources. At the workshop, experts provided previous inputs and ideas.

A book of proceedings has been prepared as a special issue of the Journal of Neutron Research has been published 

The HighNESS UCN/VCN team has worked for this past year to develop these ideas in a conceptual design stage. The purpose of this follow-up workshop is to discuss the finalized ideas and receive feedback from the community. Additionally, based on the expected performance of the UCN and VCN sources at ESS, we would like to discuss in depth the possible applications. The first day will be dedicated to presentations of the designs, and discussions about applications, and the second half-day to feedback, outlook, and final discussions. In the afternoon of the second day, we plan to have a site visit to the ESS facility.

It will also be possible to follow the workshop via zoom however we would much like to prefer to see you at the ESS 

 

    • 09:00 09:20
      Welcome and ESS General Status 20m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Helmut Schober (European Spallation Source)
    • 09:20 09:45
      ESS Science Update 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Giovanna Fragneto (European Spallation Source ERIC)
    • 09:45 10:10
      HighNESS project status 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Valentina Santoro (European Spallation Source ERIC)
    • 10:10 10:35
      Introduction to the HighNESS UCN/VCN sources designs 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Luca Zanini (European Spallation Source ERIC)
    • 10:35 11:00
      Coffee Break 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 11:00 11:25
      UCN Source Solid Deuterium in the twister 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Nicola Rizzi (Denmark Tekinske Universitet)
    • 11:25 11:50
      UCN Source SD2 in moderator cooling block 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Blahoslav Rataj (European Spallation Source ERIC)
    • 11:50 12:00
      Group photo 10m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 12:00 13:00
      Lunch 1h ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 13:00 13:25
      UCN Source He-II in the moderator cooling block 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Mathias Strothmann (Forschungszentrum Jülich GmbH)
    • 13:25 13:50
      UCN source He-II In Large Beam Port 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Mina Akhyani (Lunds University (IBAN))
    • 13:50 14:15
      UCN source He-II In beam 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Richard Wagner (Institut Laue-Langevin - ILL)
    • 14:15 14:40
      VCN source - clathrates 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Shuqi Xu
    • 14:40 15:05
      VCN source in Twister-I 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Nicola Rizzi (Denmark Tekinske Universitet)
    • 15:05 15:35
      Coffee Break 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 15:35 16:00
      VCN source in Twister -II 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Ben Folsom (European Spallation Source ERIC)
    • 16:00 16:30
      Diffraction-grating VCN interferometry and experimental search for neutron electric charge 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Alexander Ioffe
    • 16:30 17:00
      VCN interferometry: Some history and (near) future perspectives 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Juergen Klepp
    • 17:00 17:30
      Opportunities with ultracold neutrons at the ESS 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Skyler Degenkolb
    • 19:00 22:00
      Working Dinner at Grands Restauranger i Lund 3h

      Grands Restauranger i Lund
      Bantorget 1, 222 29 Lund
      https://www.grandilund.se/

  • Wednesday, 10 May
    • 09:00 09:30
      The TRIUMF Ultra Cold Advanced Neutron source and nEDM experiment 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund

      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.

      Speaker: Alexis Brossard
    • 09:30 10:00
      New scattering kernels for solid deuterium and superfluid He4 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Rolando Granada (Argentine Atomic Energy Commission)
    • 10:00 10:30
      UCN extraction from Solid Deuterium Moderator 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Ingo Rienaecker
    • 10:30 10:55
      Coffee break 25m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 10:55 11:10
      Countering gravity in a VCN SANS instrument 15m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Mads Bertelsen (ESS DMSC)
    • 11:10 11:30
      Feasibility of a strong focusing synchrotron for neutron beams 20m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund

      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.

      Speaker: Shyh-Yuan Lee
    • 11:30 12:15
      Discussion on UCN/VCN source 45m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 12:15 12:30
      Discussion on a next call and close out 15m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
      Speaker: Valentina Santoro (European Spallation Source ERIC)
    • 12:30 13:30
      Lunch 1h ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund
    • 13:30 16:00
      Site Visit 2h 30m ESS auditorium

      ESS auditorium

      European Spallation Source Partikelgatan 2, 224 84 Lund