A gamma radiography system includes a gamma source holder, a shaft handle attached to the source holder, a source container that surrounds the source holder, a source container cover attached to the source container to receive and slidingly support the shaft handle, a shielded housing that detachably receives the source container, and an extension connected to the shielded housing, such that an opening of the extension covers a beam aperture of the shielded housing. The shaft handle is configured to move the gamma source holder between a non-deployed position, in which the gamma source holder is surrounded by the source container, to a deployed position, in which the gamma source holder extends from the source container into the shielded housing.

Devices, systems, and methods described herein relate to determining a concentration of a species of interest in a sample by using a spectrometer. For example, a concentration of a species of interest may be determined by passing a first feed of a sample with a species of interest through a flow-through variable pathlength spectrophotometer and reading a first absorbance value. A change in the concentration of the species of interest may be effected in the sample, and a second feed of the sample may be passed through a flow through variable pathlength spectrophotometer. A second absorbance value may be read. The difference between the first absorbance value and the second absorbance value may be used to determine the concentration of the species of interest.

Devices, systems, and methods described herein relate to determining a concentration of a species of interest in a sample by using a spectrometer. For example, a concentration of a species of interest may be determined by passing a first feed of a sample with a species of interest through a flow-through variable pathlength spectrophotometer and reading a first absorbance value. A change in the concentration of the species of interest may be effected in the sample, and a second feed of the sample may be passed through a flow through variable pathlength spectrophotometer. A second absorbance value may be read. The difference between the first absorbance value and the second absorbance value may be used to determine the concentration of the species of interest.

A method of determining at least one x-ray scanning system geometric property includes the steps of positioning a calibration device inside a scanning chamber of the scanning device, the chamber being intersected by at least one fan beam of x-rays during a scanning operation, measuring a distance between the calibration device and at least one inner wall of the chamber, scanning the calibration device to produce an image of the calibration device, identifying pixels representing the a geometric feature of the calibration device in the image, determining a position and orientation of the pixels representing the geometric feature in the image and, determining a scanning system property based on the position and orientation of the pixels representing the geometric feature in the image. The position and orientation of the feature in the scanning chamber and the x-ray scanning system property may be determined simultaneously.

Embodiments provide a stationary X-ray source for a multisource X-ray imaging system for tomographic imaging. The stationary X-ray source includes an array of thermionic cathodes and, in most embodiments a rotating anode. The anode rotates about a rotation axis, however the anode is stationary in the horizontal or vertical dimensions (e.g. about axes perpendicular to the rotation axis). The elimination of mechanical motion improves the image quality by elimination of mechanical vibration and source motion; simplifies system design that reduces system size and cost; increases angular coverage with no increase in scan time; and results in short scan times to, in medical some medical imaging applications, reduce patient-motion-induced blurring.

Embodiments provide a stationary X-ray source for a multisource X-ray imaging system for tomographic imaging. The stationary X-ray source includes an array of thermionic cathodes and, in most embodiments a rotating anode. The anode rotates about a rotation axis, however the anode is stationary in the horizontal or vertical dimensions (e.g. about axes perpendicular to the rotation axis). The elimination of mechanical motion improves the image quality by elimination of mechanical vibration and source motion; simplifies system design that reduces system size and cost; increases angular coverage with no increase in scan time; and results in short scan times to, in medical some medical imaging applications, reduce patient-motion-induced blurring.

A means is provided for enabling easy identification of baggage in which one or more hazardous item is detected. An inspection system is equipped with a first conveyor, inspection device, cover, camera, controller and display. The first conveyor transports baggage to the inspection device. The inspection device captures transmitted-light images of the baggage using light that transmits through the baggage. The cover covers a transport path of the baggage to prevent a hand of a visitor from being inserted into an image shooting area where electromagnetic waves that are harmful to the human body are irradiated. The camera captures visible-light images of the baggage using visible light. The controller controls the first conveyor, inspection device, camera and display. Under control of the controller, the display simultaneously displays a transmitted-light image and a visible-light image of the baggage.

A means is provided for enabling easy identification of baggage in which one or more hazardous item is detected. An inspection system is equipped with a first conveyor, inspection device, cover, camera, controller and display. The first conveyor transports baggage to the inspection device. The inspection device captures transmitted-light images of the baggage using light that transmits through the baggage. The cover covers a transport path of the baggage to prevent a hand of a visitor from being inserted into an image shooting area where electromagnetic waves that are harmful to the human body are irradiated. The camera captures visible-light images of the baggage using visible light. The controller controls the first conveyor, inspection device, camera and display. Under control of the controller, the display simultaneously displays a transmitted-light image and a visible-light image of the baggage.

A technique is provided to enable a baggage holder to smoothly place baggage on a conveyor belt. An inspection device inspects the baggage of a visitor using x-rays. A belt conveyor transports the baggage to an inspection device. On the surface of the belt, plural marks are printed at predetermined intervals along the transport direction. When the belt conveyor drives the belt, the marks move in the transport direction at the transport speed of the belt. When placing baggage on the belt, the visitor can easily perceive the status of the belt, such as its transport direction and speed. The inspection device may have a light emitter near the loading position where baggage should be placed on the belt, and the color of light from the light emitter may change to notify the visitor when baggage should be placed on the belt.

A technique is provided to enable a baggage holder to smoothly place baggage on a conveyor belt. An inspection device inspects the baggage of a visitor using x-rays. A belt conveyor transports the baggage to an inspection device. On the surface of the belt, plural marks are printed at predetermined intervals along the transport direction. When the belt conveyor drives the belt, the marks move in the transport direction at the transport speed of the belt. When placing baggage on the belt, the visitor can easily perceive the status of the belt, such as its transport direction and speed. The inspection device may have a light emitter near the loading position where baggage should be placed on the belt, and the color of light from the light emitter may change to notify the visitor when baggage should be placed on the belt.