An arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side.

Alfried Felix Alwyn Krupp von Bohlen und Halbach (13 August 1907 – 30 July 1967), often referred to as Alfried Krupp, was a German industrialist, a competitor in Olympic yacht races, contributor to the SS and a member of the Krupp family, which has been prominent in German industry since the early 19th century.

Gustav Georg Friedrich Maria Krupp von Bohlen und Halbach (born Gustav von Bohlen und Halbach; 7 August 1870 – 16 January 1950) was a German foreign service official who became chairman of the board of Friedrich Krupp AG, a heavy industry conglomerate, after his marriage to Bertha Krupp, who had inherited the company.

(24 January 1938 – 8 May 1986) a German socialite and heir to the Krupp family.