Grant: Subatomic Physics Envelope - Research Tools and Instruments
TRIUMF
$79,000.00
Equipment for Neutron EDM Experiment at RCNP
EF 2012-13
Résumé
A new high-density ultracold neutron (UCN) source will be constructed and developed at TRIUMF over the coming years. The initial experiment using the facility is a new measurement of the neutron electric dipole moment (nEDM). A non-zero value of the nEDM would violate time-reversal symmetry. New sources of CP-violation are predicted by the standard model extensions which seek to explain the matter-antimatter asymmetry of the universe. The project is funded by JSPS in Japan, KEK, RCNP, and CFI in Canada (the University of Winnipeg). The MOU was signed in January 2011, and the project has officially started. An initial cooling test of the improved UCN started this fall, and will be ready for the prototype neutron EDM experiment in 2013 and 2014. The present RTI grant request is for the construction of key components for the prototype EDM experiment at RCNP: Remote liquid helium transfer system, DAQ and slow control system, and UCN detector. These components will move to TRIUMF with the UCN source after completion of the RCNP prototype phase of the project.
The remote liquid helium transfer system is required for radiation safety and experimental precision. This system would allow us to run for a few days without interruption, rather than leaving the beam off for a couple of hours to allow access for helium filling every 8-12 hours even for the current low intensity (1microA) operation at RCNP. We propose to upgrade the data-acquisition system for the EDM measurement at RCNP to a MIDAS/VME-based DAQ and slow control system, which is presently widely used at TRIUMF. The system will replace the current single simple event sequencer, and add the function to log and control various environmental variables. We adopt custom electronic boards that are already developed at TRIUMF to significantly reduce the cost. The proposed UCN detector, based on 6Li doped glass scintillators, replaces the current 3He counter which is already started to saturate. We propose to use several glass scintillator based monitors along the UCN guide to measure the UCN flux.
Programme
Subatomic Physics Envelope - Research Tools and Instruments
Bénéficiaire
Emplacement
British Columbia, Canada
Type de bénéficiaire
Not-for-profit organization or charity
Type
Grant
Source
NSERC's Awards Data
Tel que publié
Application id
422675-2012
Name nom
Konaka, Akira
Department département
Science Division
Organization id
8
Institution établissement
TRIUMF
Province en
British Columbia
Province fr
Colombie-Britannique
Country en
CANADA
Country fr
CANADA
Fiscal year exercice financier
2012
Competition year année de concours
2012
Award amount
79000
Program id
SAPEQ
Program name en
Subatomic Physics Envelope - Research Tools and Instruments
Program name fr
Enveloppe de physique subatomique - Outils et instruments de recherche
Group en
Discovery grants programs
Group fr
Programmes de subventions à la découverte
Committee code
19
Committee name en
Subatomic Physics
Committee name fr
Physique subatomique
Area of application code
1202
Area of application group en
Advancement of knowledge
Area of application group fr
Avancement des connaissances
Area of application en
Physical sciences
Area of application fr
Sciences physiques
Research subject code
3104
Research subject group en
Physics
Research subject group fr
Physique
Research subject en
Particle physics
Research subject fr
Physique des particules
Partie
1
Nb partie
1
Application title
Equipment for Neutron EDM Experiment at RCNP
Keyword
NSERC
Application summary
A new high-density ultracold neutron (UCN) source will be constructed and developed at TRIUMF over the coming years. The initial experiment using the facility is a new measurement of the neutron electric dipole moment (nEDM). A non-zero value of the nEDM would violate time-reversal symmetry. New sources of CP-violation are predicted by the standard model extensions which seek to explain the matter-antimatter asymmetry of the universe. The project is funded by JSPS in Japan, KEK, RCNP, and CFI in Canada (the University of Winnipeg). The MOU was signed in January 2011, and the project has officially started. An initial cooling test of the improved UCN started this fall, and will be ready for the prototype neutron EDM experiment in 2013 and 2014. The present RTI grant request is for the construction of key components for the prototype EDM experiment at RCNP: Remote liquid helium transfer system, DAQ and slow control system, and UCN detector. These components will move to TRIUMF with the UCN source after completion of the RCNP prototype phase of the project.
The remote liquid helium transfer system is required for radiation safety and experimental precision. This system would allow us to run for a few days without interruption, rather than leaving the beam off for a couple of hours to allow access for helium filling every 8-12 hours even for the current low intensity (1microA) operation at RCNP. We propose to upgrade the data-acquisition system for the EDM measurement at RCNP to a MIDAS/VME-based DAQ and slow control system, which is presently widely used at TRIUMF. The system will replace the current single simple event sequencer, and add the function to log and control various environmental variables. We adopt custom electronic boards that are already developed at TRIUMF to significantly reduce the cost. The proposed UCN detector, based on 6Li doped glass scintillators, replaces the current 3He counter which is already started to saturate. We propose to use several glass scintillator based monitors along the UCN guide to measure the UCN flux.
