X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2007-01-09
2007-01-09
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S143000
Reexamination Certificate
active
10199781
ABSTRACT:
An X-ray source is disclosed comprising a source of high energy electrons that travel along a longitudinal path. Target material lies along the longitudinal path and X-ray radiation is generated due to impact of the high energy electrons with the target. Shielding material is provided around at least a portion of the target. The shielding material defines a slot extending from the target to an exterior surface of the shielding material, to allow passage of generated radiation. The slot has an axis transverse to the longitudinal path. The axis may be perpendicular longitudinal path. The shielding material may define a plurality of slots having transverse axes. The source of high energy electrons may be a linear accelerator, for example. Scanning systems incorporating such sources are also disclosed. The scanning system comprises a conveying system having a longitudinal axis and the radiation source may be positioned so that the longitudinal path forms an acute angle with respect to the longitudinal axis, to decrease the size of the scanning unit as compared to a unit where the longitudinal axis is perpendicular to the longitudinal path. The longitudinal axis may be parallel to the longitudinal path, to form a more compact scanning system. A plurality of slots may be defined in the shielding material and a corresponding number of conveying systems may be provided to examine a plurality of objects concurrently. Methods of generating radiation and methods of examining objects are also disclosed.
REFERENCES:
patent: 3018374 (1962-01-01), Pritchett
patent: 3636353 (1972-01-01), Untermyer
patent: RE28544 (1975-09-01), Stein et al.
patent: 3924132 (1975-12-01), Koslow
patent: 4031545 (1977-06-01), Stein et al.
patent: 4149081 (1979-04-01), Seppi
patent: 4229654 (1980-10-01), Arya et al.
patent: 4251726 (1981-02-01), Alvarez
patent: 4357535 (1982-11-01), Haas
patent: 4430568 (1984-02-01), Yoshida et al.
patent: 4521900 (1985-06-01), Rand
patent: 4599740 (1986-07-01), Cable
patent: 4671256 (1987-06-01), Lemelson
patent: 4722096 (1988-01-01), Dietrich et al.
patent: 4726046 (1988-02-01), Nunan
patent: 4918315 (1990-04-01), Gomberg et al.
patent: 4941162 (1990-07-01), Vartsky et al.
patent: 4956856 (1990-09-01), Harding
patent: 4987584 (1991-01-01), Doenges
patent: 5044002 (1991-08-01), Stein
patent: 5065418 (1991-11-01), Bermbach et al.
patent: 5076993 (1991-12-01), Sawa et al.
patent: 5098640 (1992-03-01), Gozani et al.
patent: 5111494 (1992-05-01), Turner et al.
patent: 5115459 (1992-05-01), Bertozzi
patent: 5124554 (1992-06-01), Fowler et al.
patent: 5124658 (1992-06-01), Adler
patent: 5153439 (1992-10-01), Gozani et al.
patent: 5200626 (1993-04-01), Schultz et al.
patent: 5251240 (1993-10-01), Grodzins
patent: 5278418 (1994-01-01), Broadhurst
patent: 5313511 (1994-05-01), Annis et al.
patent: 5367552 (1994-11-01), Peschmann
patent: 5410156 (1995-04-01), Miller
patent: 5420905 (1995-05-01), Bertozzi
patent: 5422926 (1995-06-01), Smith et al.
patent: 5490218 (1996-02-01), Krug et al.
patent: 5491734 (1996-02-01), Boyd et al.
patent: 5493596 (1996-02-01), Annis
patent: 5495106 (1996-02-01), Mastny
patent: 5524133 (1996-06-01), Neale et al.
patent: 5557108 (1996-09-01), Tumer
patent: 5600303 (1997-02-01), Husseiny et al.
patent: 5600700 (1997-02-01), Krug et al.
patent: 5611502 (1997-03-01), Edlin et al.
patent: 5638420 (1997-06-01), Armistead
patent: 5642394 (1997-06-01), Rothschild
patent: 5692028 (1997-11-01), Geus et al.
patent: 5692029 (1997-11-01), Husseiny et al.
patent: 5696806 (1997-12-01), Grodzins et al.
patent: 5729582 (1998-03-01), Ham et al.
patent: 5784430 (1998-07-01), Sredniawski
patent: 5809106 (1998-09-01), Kitade et al.
patent: 5818054 (1998-10-01), Randers-Pehrson et al.
patent: 5838758 (1998-11-01), Krug et al.
patent: 5838759 (1998-11-01), Armistead
patent: 5841832 (1998-11-01), Mazess et al.
patent: 5848115 (1998-12-01), Little et al.
patent: 5917880 (1999-06-01), Bjorkholm
patent: 5930326 (1999-07-01), Rothschild et al.
patent: 5974111 (1999-10-01), Krug et al.
patent: 6009146 (1999-12-01), Adler et al.
patent: 6078642 (2000-06-01), Simanovsky et al.
patent: 6088423 (2000-07-01), Krug et al.
patent: 6151381 (2000-11-01), Grodzins et al.
patent: 6192104 (2001-02-01), Adams et al.
patent: 6218943 (2001-04-01), Ellenbogen
patent: 6249567 (2001-06-01), Rothschild et al.
patent: 6269142 (2001-07-01), Smith
patent: 6278115 (2001-08-01), Annis et al.
patent: 6292533 (2001-09-01), Swift et al.
patent: 6347132 (2002-02-01), Annis
patent: 6445766 (2002-09-01), Whitham
patent: 6453007 (2002-09-01), Adams et al.
patent: 6580940 (2003-06-01), Gutman
patent: 6628745 (2003-09-01), Annis et al.
patent: 6778633 (2004-08-01), Loxley et al.
patent: 6813336 (2004-11-01), Siochi
patent: WO 96/13839 (1996-05-01), None
McDonald, Marci; “Checkpoint Terror Border Searches Snarl the Free Flow of Goods” U.S. News and World Report, p. 52, Feb. 11, 2002.
Grodzins, Lee; Nuclear Techniques For Finding Chemical Explosives In Airport Luggage; Beam Interactions With Materials and Atoms; May 1991; pp. 829-833; vol. B56/57, Part II; Elsevier Science Publishers B.V. (North-Holland); Holland.
McCall, R.C., and Swanson, W.P., “Neutrons and their Characteristics,” Proceedings of a Conference on Neutrons from Electron Medical Accelerators, pp. 75-86, Apr. 9-10, 1979.
Kaye Scholer LLP
Sklar Brandon N.
Song Hoon
Thomas Courtney
Varian Medical Systems Technologies, Inc.
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