India’s PFBR achieves criticality, marks entry into stage-II nuclear programme
economictimes.indiatimes.comfrontend
India's first Prototype Fast Breeder Reactor (PFBR) at Kalpakkam in Tamil Nadu achieved 'criticality' at 8:25 pm on April 6, the point at which the number of neutrons being born exactly equalled the … [+3996 chars]