In order to improve the mechanical stability of an X-ray grating with top bridges for X-ray dark field imaging and/or X-ray phase contrast imaging, it is proposed to reduce or prevent the undesired high stress on the top bridges by a change in the manufacturing process. Specifically, it is proposed to electroplate the top bridges after the bending. In other words, the electroplating of the top bridges is performed on the bent geometry.

Disclosed herein is an x-ray interferometer for x-ray phase contrast imaging including an x-ray source, an x-ray source grating, two x-ray phase gratings, an x-ray analyzer grating and an x-ray detector. An alternative interferometer includes a periodically structured x-ray source, two x-ray phase gratings, an x-ray analyzer grating and an x-ray detector. The phase gratings are placed much closer to the x-ray detector than to the x-ray source and the image object is positioned upstream and close to the phase gratings to achieve high sensitivity and large field-of-view simultaneously.

Improvements to atom interferometers. An improved atom interferometer has a single polarization-preserving fiber, coupled for propagation of beams of two Raman frequencies, and a parallel displacement beamsplitter for separating the laser beams into respective free-space-propagating parallel beams traversing at least one ensemble of atoms. A reflector generates one or more beams counterpropagating through the ensemble of atoms. Other improvements include interposing a beam-splitting surface common to a plurality of parallel pairs of beams counterpropagating through the ensemble of atoms, generating interference fringes between reflections of the beams to generate a detector signal; and processing the detector signal to derive at least one of relative phase and relative alignment between respective pairs of the counterpropagating beams.

This disclosure provides systems, methods, and apparatus related to ion beam therapy. In one aspect, a system includes a position sensitive detector and a collimator. The position sensitive detector configured to detect gamma rays generated by an ion beam interacting with a target. The collimator is positioned between the target and the position sensitive detector. The collimator includes a plurality of knife-edge slits, with a first knife-edge slit intersecting with a second knife-edge slit.

A breast imaging system for examining a breast on a chest of a patient comprises first one or more shielding devices configured for placement on a first side of the breast and a first collimator and a first detector configured for placement on the first side of the breast and at a position that is further away from the breast and from the chest than the first one or more shielding devices are.

A device for suspending an x-ray grid has a first rotating frame which can be rotated about a first axis. The x-ray grid is disposed in or on the rotating frame. Two first flexible hinge elements are connected to the first rotating frame and are aligned along the first axis. The first rotating frame is reversibly rotatable about the first axis. An x-ray arrangement has one or more such suspension devices between an x-ray emitter and an x-ray detector. The articulated flexible elements of the novel device are completely play-free and significantly more cost-effective that separate hinges.

An apparatus for movably suspending an x-ray grid. The apparatus has a carrier module, in or on which the x-ray grid is arranged, and a linkage. The linkage is configured to rotate the carrier module about an axis which is vertical to the x-ray grid and/or to translate the carrier module in the plane of the x-ray grid. An x-ray arrangement has an x-ray emitter, an x-ray detector and one or more apparatus for suspending the x-ray grid between the emitter and detector. The apparatus provides for play-free kinematics which is more cost-effective than the use of known precision drives.

The present invention relates to an apparatus for determining the location of a radiation source. The apparatus for determining the location of a radiation source according to the present invention comprises: a collimator part for selectively passing radiation therethrough according to the direction in which the radiation is incident; a scintillator part for converting the radiation incident from the collimator part into a light ray; a first optical sensor for converting the light ray incident from one end of the scintillator part into a first optical signal; a second optical sensor for converting the light ray incident from the other end of the scintillator part into a second optical signal; and a location information acquisition part for acquiring information on the location where the light ray is generated in the scintillator part, by using the second optical signal and the second optical signal.

An X-ray detector and an X-ray CT apparatus that facilitate collimator plate arrangement are characterized by comprising radiation detection element arrays in which a plurality of radiation detection elements detecting a radiation generated from a radiation source are arranged in a first direction and a second direction orthogonal to the first direction, collimator plates that are arranged along the first direction on the radiation source side of the radiation detection element arrays to remove scattered radiations, and collimator plate support members that have grooves supporting the collimator plate and are arranged along the second direction between the radiation detection elements.

An antiscatter grid for radiological imaging, the grid formed as a stack of two or more sheets having a flexible substrate, wherein each sheet has spaced-apart opaque cavities, each opaque cavity containing a radio-opaque material. The opaque cavities define a plurality of channels that extend through the sheets to allow ionizing radiation to pass therethrough. Magnets disposed along the sheets couple each sheet to one or more neighboring sheets of the stack.