Lorusso & Loud
Method and apparatus for generating radiation
 In a method of generating radiation, a gas having a pressure equal to or greater than 10.sup.-9 Torr is introduced into an electron orbit in an electron storage ring. The gas is ionized by a circulating electron beam, and the electron beam is focused by ions to accumulate a large current electron beam. Also, a target is disposed on an electron orbit in the electron storage ring, and the electron beam circulating along the electron orbit is caused to hit the target, thereby generating a bremsstrahlung and high-intensity radiation. 
Research Development Corporation of Japan
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inventional inventional inventional
Hironari
Yamada