Bertram Brockhouse
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Bertram Neville Brockhouse, CC, Ph.D, D.Sc, FRSC (July 15, 1918 – October 13, 2003) was a Nobel prize-winning Canadian physicist.
Brockhouse was born in Lethbridge Alberta, and was a graduate of the University of British Columbia (BA, 1947) and the University of Toronto (MA, 1948; Ph.D, 1950). From 1950 to 1962 he carried out research at Atomic Energy of Canada's Chalk River Nuclear Laboratory.
In 1962, he became professor at McMaster University in Canada, where he remained until his retirement in 1984.
He shared the 1994 Nobel Prize in Physics with American Clifford Shull for developing neutron scattering techniques for studying condensed matter. In 1982 he was made an Officer of the Order of Canada and was promoted to Companion in 1995.
In October of 2005, as part of the 75 anniversary of McMaster University being in Hamilton, Ontario University Avenue (a street on the University campus), was renamed to Brockhouse Way in honor of Brockhouse.
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Directivity is also defined for directional couplers and similiar devices for RF and Microwave measurements. It is the properof the device couple power in one direction while rejecting in other direction. Higher the rejection, higher the directivity. For example in a directional coupler if the directivity of a measuring port is 40 dB, it means the power coupled in this port from desired direction will be 40 dB higher than the undesired power coupled from other direction.
