	US 7,491,958 B2
	Radiographic inspection system for inspecting the contents of a container having dual injector and dual accelerating section
Alexandre A. Zavadtsev, Reutov (Russian Federation); and Gary F. Bowser, Auburn, Ind. (US)
Assigned to ScanTech Holdings, LLC, Atlanta, Ga. (US)
Appl. No. 10/569,752 PCT Filed Aug. 27, 2004, PCT No. PCT/US2004/028030 § 371(c)(1), (2), (4) Date Feb. 26, 2007, PCT Pub. No. WO2005/022554, PCT Pub. Date Mar. 10, 2005.
Claims priority of provisional application 60/498428, filed on Aug. 27, 2003.
Prior Publication US 2007/0274445 A1, Nov. 29, 2007
Int. Cl. G01N 21/86 (2006.01)

U.S. Cl. 250—559.4 [250/221]

12 Claims

1. A radiographic inspection system for inspecting the contents of a container, said radiographic inspection system comprising:

a power source for generating electromagnetic waves;

a first injector for producing pulses of charged particles;

a first accelerating section operable to receive said pulses of charged particles from said first injector, said first accelerating section being further operable to receive a first portion said electromagnetic waves and to transfer energy thereof to said pulses of charged particles from said first injector;

a second injector for producing pulses of charged particles;

a second accelerating section operable to receive said pulses of charged particles from said second injector, said second accelerating section being further operable to receive a second portion of said electromagnetic waves and to transfer energy thereof to said pulses of charged particles from said second injector; and,

a phase shifter interposed between said power source and said first and second accelerating sections for receiving said electromagnetic waves from said power source, for alternately changing the phase of said electromagnetic waves between successive pulses of said pulses of charged particles from said first injector, and for delivering said electromagnetic waves to said first accelerating section.