The PIK Reactor differs from the similar foreign projects in the increased neutron fluxes in the reflector, the presence of a neutron trap with a very high flux, and the possibility of irradiating materials in the core. The maximum density of the unperturbed thermal neutron flux is close to 5×10¹⁵сm^-2×с^-1 and corresponds to the record values ​​obtained in continuous reactors. The PIK high-flux research nuclear reactor was physically launched at NRC "Kurchatov Institute" – PNPI on February 28, 2011 as part of launch complex No. 1 (PK-1).