An N-M tomography system comprising: a carrier for the subject of an examination procedure; a plurality of detector heads; a carrier for the detector heads; and a detector positioning arrangement operable to position the detector heads during performance of a scan without interference or collision between adjacent detector heads to establish a variable bore size and configuration for the examination. Additionally, collimated detectors providing variable spatial resolution for SPECT imaging and which can also be used for PET imaging, whereby one set of detectors can be selectably used for either modality, or for both simultaneously.

An anti-scatter collimator is for arrangement in a stacked construction with an X-ray detector. In an embodiment, the anti-scatter collimator includes collimator walls arranged adjacently at least along a first direction. The collimator walls are mutually spaced to provide a through-channel between each pair of adjacent collimator walls. The through-channels provided by the arrangement of the multiplicity of collimator walls are at least partially filled with a filler material.

A sample inspection system and a corresponding method for inspecting a sample is provided. The sample inspection system includes a beam former, a beam modulator an energy resolving detector and a collimator. The beam former is adapted to receive an electromagnetic radiation from an electromagnetic source to generate a primary beam of electromagnetic radiation. The beam modulator is provided at a distance from the beam former to define a sample chamber. The collimator is provided between the beam modulator and the energy resolving detector. The collimator has a plurality of channels adapted to receive diffracted or scattered radiation. Upon incidence of the primary beam onto the beam modulator, the beam modulator provides a reference beam of diffracted or scattered radiation. The energy resolving detector is arranged to detect the reference beam.

To provide a technique with which it is possible to make collimator plates resistant to deformation, and reduce position offsets in the collimator plates, a collimator module (1) comprises a plurality of collimator plate sets (2) lined up side by side in a channel direction (CH), wherein each collimator plate set (2) comprises a first collimator plate (3), a second collimator plate (4), and a joint layer (5) disposed between the first collimator plate (3) and second collimator plate (4) for adhesively bonding the first collimator plate (3) and second collimator plate (4) together, and the plurality of collimator plate sets (2) are lined up side by side in the channel direction (CH) with an air layer (20) intervening between adjacent two of the plurality of collimator plate sets (2).

The present invention relates to charged particle, X-ray, gamma ray and or thermal neutron collimators with improved UV, visible and IR blocking on the basis of micro structured semiconductor and method of making the same. In more detail, the present invention is related to three-dimensionally microstructured charged particle, X-ray, gamma ray and or thermal neutron collimators. The collimators of the present invention will improve the performance of telescopes, radiology equipment, nondestructive evaluation equipment and proton therapy equipment.

The present disclosure provides a neutral atom imaging unit, a neutral atom imager, a neutral atom imaging method, and a space detection system. The neutral atom imaging unit includes at least one set of detection units, the at least one set of detection units includes: at least one semiconductor detector line array, each semiconductor detector line array includes a semiconductor detector strip composed of a plurality of semiconductor detectors; and at least one modulation grid. The modulation grid includes a slit and a slat forming the slit; the modulation grid includes a plurality of grid periods, each of the grid periods includes n slits, the width of the semiconductor detector strip is d, and the width (w.sub.i) of the i-th slit of the modulation grid satisfies the following relationship: $w_i=\frac{n}{i}\times d.$

An atomic beam is irradiated with a first, a second, and a third laser beam. The first laser beam and the third laser beam each have a wavelength corresponding to a transition between a ground state and a first excited state. The second laser beam has a wavelength corresponding to a transition between the ground state and a second excited state. First, atoms each having a smaller velocity component than a predetermined velocity in a direction orthogonal to the traveling direction of the atomic beam are changed from the ground state to the first excited state by the first laser beam. Subsequently, a momentum is provided for individual atoms in the ground state by the second laser beam, which removes the atoms from the atomic beam. Finally, atoms in the first excited state are returned from the first excited state to the ground state by the third laser beam.

A multi-layer X-ray detector comprises a first X-ray converter, a first sensor, a second X-ray converter, a second sensor, and an internal anti-scatter device. The first sensor is located at a first sensor layer and is configured to detect radiation emitted from the first X-ray converter. The second sensor is located at a second sensor layer and is configured to detect radiation emitted from the second X-ray converter. The first X-ray converter and the first sensor form a first detector pair, and the second X-ray converter and the second sensor form a second detector pair. The internal anti-scatter device comprises a plurality of X-ray absorbing septa walls and is located between the first detector pair and the second detector pair. No structure of the internal anti-scatter device is located within either layer of the first detector pair, and no structure of the anti-scatter device is located within either layer of the second detector pair. The plurality of septa walls comprises a plurality of first septa walls substantially parallel to each other, and wherein a spacing between the first septa walls in a first direction is equal to an integer multiple n of detector pixel pitch of the first sensor and/or of the second sensor in the first direction, wherein n = 2, 3, 4, ... N.

The present disclosure provides a collimating body and a multi-source focusing radiation therapy head. The collimating body includes a first collimating portion and a second collimating portion. The first collimating portion and the second collimating portion are arranged side by side and closely fixed. The first collimating portion includes a first collimating hole set, and the second collimating portion includes a second collimating hole set. The first collimating portion and the second collimating portion are able to move oppositely in a direction perpendicular to a side-by-side direction, so as to align or stagger the first collimating hole set and the second collimating hole set.

An X-ray diagnosis apparatus includes an X-ray limiter having four diaphragm blades and a console on which four physical operating units that correspond to the four diaphragm blades are placed at four positions. When viewed from the side of the operator of the console, the four operating units are placed on the far side, the near side, the left side, and the right side. The far-side operating unit, the near-side operating unit, the left-side operating unit, and the right-side operating unit correspond to the upper diaphragm blade, the lower diaphragm blade, the left-side diaphragm blade, and the right-side diaphragm blade, respectively, with reference to an X-ray image displayed in a display.