NEUTRON SOURCE WITH BEAM SHAPING APPARATUS FOR RADIOGRAPHY

A neutron generator has a neutron source generating an ion beam bombarding a Titanium target having a first diameter, the target embedded in a pre-moderator, emitting fast neutrons isotropically, a portion of the fast neutrons moderated in passing through the pre-moderator and exiting through a lowe...

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Bibliographische Detailangaben
Hauptverfasser: Jones, Jr, Guan, Yao Zong, Cremer, Jr, Gary, Charles Kevin, Chen, Allan Xi, Piestrup, Melvin Arthur, Williams, David Lowndes, Amoroso, Adam Nathaniel, Brown, Craig Mathew, Urdahl, Randall Scott
Format: Patent
Sprache:eng ; hun
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Zusammenfassung:A neutron generator has a neutron source generating an ion beam bombarding a Titanium target having a first diameter, the target embedded in a pre-moderator, emitting fast neutrons isotropically, a portion of the fast neutrons moderated in passing through the pre-moderator and exiting through a lowermost surface of the pre-moderator, and a plate of moderating material abutting the lowermost surface of the pre-moderator, the plate having an opening therethrough in a shape of a truncated cone with an axis aligning with direction of the ion beam, a depth, a major diameter of at the upper surface of the plate and a minor diameter at the lower surface of the plate, the opening forming a funnel through which neutrons pass. Neutrons enter the funnel and are to exit through the minor diameter of the funnel, providing a neutron beam with a spot size useful for neutron radiography.