Introduction to general relativity this energy loss would be too small to be detectable, but this energy loss was observed in 1974 in a binary pulsar called PSR1913+16. In such a system, one of the orbiting stars is a pulsar. This has two consequences: a pulsar is an extremely dense object known as a neutron star, for which gravitational wave emission is much stronger than for ordinary stars. Also, a pulsar emits a narrow beam of electromagnetic radiation from its magnetic poles. As the pulsar rotates, its beam sweeps over the Earth, where it is seen as a regular series of radio pulses, just
Canadian Neutron Beam Centre suite of 6 beamlines at the CNBC. The neutron beam laboratory known as Canadian Neutron Beam Centre was transferred from AECL to the National Research Council in 1997. The NRU reactor, closed in March 2018, was a multi-purpose research reactor that supported science and industry in three areas simultaneously: 1. It was Canada's only major neutron source, supplying neutrons for the CNBC. 2. It was Canada's only major materials testing reactor, supporting nuclear energy research and development. 3. It was one of the two largest global producers of medical radioisotopes. Canadian Neutron Beam Centre The NRC Canadian Neutron Beam Centre