Saint-PetersburgSaint-PetersburgPNPI PNPI
WelcomeWelcome
V. F. EzhovPSTP 2011
12-16 September
GatchinaGatchina, , located 45 km south of
St. Petersburg, former residence of Russian
emperors
PNPI research directions:
• physics of elementary particles and fundamental interactions;• physics of atomic nuclei and nuclear reactions;• neutron physics;• solid state physics;• theoretical physics;• physics and engineering of reactors and accelerators;• molecular and radiation biophysics;• radiation medicine;• new techniques and experimental equipment
PNPI base facilities:
• 18 МW research nuclear reactor;• 100 МW research nuclear reactor (to be completed in 2013);• 1 GeV proton accelerator.
PetersburgPetersburgNuclear Physics Nuclear Physics Institute of RASInstitute of RAS
WWR-M reactor
ПИЯФ
PIK reactor
Accelerator
International Neutron Research CentreInternational Neutron Research Centre(Project)(Project)
1 GeV proton accelerator
PIK
PNPI
Polarized neutronsPolarized neutrons• Polarized He-3 target - neutron polarizer• Magnetic resonance – EDM of neutron• Magnetic trap – UCN neutron lifetime
Status of EDMStatus of EDM
experiment in PNPIexperiment in PNPI
Experimental scheme used in PNPI
Modernized PNPI EDM spectrometerPNPI – ILL collaboration
Waited accuracy
Atomic Magnetic moment in inhomogeneos magnetic field.
1922 – Stern and Gerlach
Vladimirskii, V.V. Magnetic Mirrors,
channels and bottles neutrons. Sov. Phys.
JETP 12, 740-746, (1961)
The main problems: 1. Filling and empting. If
one use superconducting system, then he can’t switch on field too fast.
2. Huge setup and small storage volume
=87710 s
Neutron lifetimeNeutron lifetimeLast results
Gravitational trap Magnetic trap
Expected accuracy of new projects
Thank you for Thank you for attentionattention
&&Welcome to PNPIWelcome to PNPI
Cosmology and Particle Physics &Cosmology and Particle Physics &
Neutron Experiments Neutron Experiments • Search for Neutron
Electric Dipole Moment (EDMn)
• Neutron lifetime• Neutron lifetime;
Correlation coefficients in neutron decay; EDMn
• Neutron lifetime• Neutron -
mirrorneutron oscillations
• Neutron diffraction in perfect crystals
• Experiments with ultracold neutrons (UCN)
• CP-violation - dominance of matter over antimatter
• Baryogenesis• Fundamental
interaction - Standard Model, Supersymmetry…
• Stellar Nucleosynthesis• Mirror Universes
• Gravitational vs inertial mass
• New forces & Search for Dark matter candidates