X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2005-10-11
2005-10-11
Church, Craig E. (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S057000, C378S098600, C378S113000
Reexamination Certificate
active
06954515
ABSTRACT:
A radiation source is disclosed comprising a source of charged particles that travel along a path. Target material lies along the path to generate radiation upon impact by the beam. A magnet is provided to deflect the beam prior to impacting the target. The magnet may generate a time-varying magnetic field or a constant magnetic field. A constant magnetic field may be varied spatially across the beam. The magnet may be an electromagnet or a permanent magnet. In one example, deflection of the beam results in impact of the beam on the target along a plurality of axes. In another example, portions of the beam are differentially deflected. The source may thereby irradiate an object to be scanned with more uniform radiation. The charged particles may be electrons or protons and the radiation may be X-ray or gamma ray radiation, or neutrons. Scanning systems incorporating such sources, methods of generating radiation and methods of examining objects are disclosed, as well.
REFERENCES:
patent: 4303860 (1981-12-01), Bjorkholm et al.
patent: 4342914 (1982-08-01), Bjorkholm
patent: 4382208 (1983-05-01), Meddaugh et al.
patent: 4400650 (1983-08-01), Giebeler, Jr.
patent: 4768214 (1988-08-01), Bjorkholm
patent: 4799247 (1989-01-01), Annis et al.
patent: 4819256 (1989-04-01), Annis et al.
patent: 4839913 (1989-06-01), Annis et al.
patent: 5124658 (1992-06-01), Adler
patent: 5159240 (1992-10-01), Chen et al.
patent: 5159617 (1992-10-01), King et al.
patent: 5251240 (1993-10-01), Grodzins
patent: 5313511 (1994-05-01), Annis et al.
patent: 5422926 (1995-06-01), Smith et al.
patent: 5442672 (1995-08-01), Bjorkholm et al.
patent: 5849252 (1998-12-01), Wakamoto et al.
patent: 5917880 (1999-06-01), Bjorkholm
patent: 6009146 (1999-12-01), Adler et al.
patent: 6069936 (2000-05-01), Bjorkholm
patent: 6301326 (2001-10-01), Bjorkholm
patent: 6366021 (2002-04-01), Meddaugh et al.
patent: 6486482 (2002-11-01), Anderberg et al.
patent: 6542574 (2003-04-01), Grodzins
patent: 6628745 (2003-09-01), Annis et al.
McDonald Marci, Checkpoint Terror, U.S. News & World Report, Feb. 11, 2002, p. 52, USA.
Bjorkholm Paul
Clayton James E.
Church Craig E.
Kaye Scholer LLP
Sklar Brandon N.
Varian Medical Systems Inc.
Yun Jurie
LandOfFree
Radiation sources and radiation scanning systems with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radiation sources and radiation scanning systems with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiation sources and radiation scanning systems with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3461510