Abstract: An X-ray lens is provided. The lens is located behind an X-ray tube and a collimator, the collimator located behind the X-ray tube, such that X-rays emitted from the X-ray tube pass through the collimator and then pass through the X-ray lens, wherein the X-ray lens is a monolithic capillary parallel lens configured to transform a cone emanant beam penetrating the collimator into parallel X-rays.

Abstract: Provided is an X-ray waveguide including a core and two clads opposing to each other so as to sandwich the core, wherein one of the interfaces between the clad and the core has a periodic relief structure in a direction perpendicular to an opposing direction of the two clads and perpendicular to a guiding direction of an X-ray in the X-ray waveguide.

Abstract: A support structure having multiple highly aligned curved x-ray optics, the support structure having multiple internal partially or fully concentric surfaces upon which said optics are mounted, thereby aligning said optics along a central optical axis thereof and therefore to a source, sample, and/or detector in combination with which the support structure is useable. The surfaces may be nested around the central optical axis; and the support structure may divided longitudinally into sections around the central optical axis by walls. At least one of the x-ray optics comprises a curved diffracting optic, for receiving a diverging x-ray beam and focusing the beam to a focal area, in one embodiment a focusing monochromating optic. In an improved embodiment, an optic comprises a single layer, plastically deformed, LiF optic.

Abstract: An x-ray diffraction apparatus is provided having an x-ray diffraction head, a frame for supporting the x-ray diffraction head, and a pair of drive mechanisms of the frame configured to generate pivotal movement of the x-ray diffraction head about first and second orthogonal axes. The frame is configured such that operation of one of the drive mechanisms to rotate the x-ray diffraction head about the first axis generates rotation of both of the drive mechanisms about the first axis.

Abstract: A system and a method for acquiring image data of a subject with an imaging system is provided. The system can include a gantry that completely annularly encompasses at least a portion of the subject, with a source positioned within and movable relative to the gantry. The source can be responsive to a signal to output at least one pulse. The system can include a detector positioned within and movable relative to the gantry to detect the pulse emitted by the source. The system can also include a detector control module that sets detector data based on the detected pulse, and an image acquisition control module that sets the signal for the source and receives the detector data. The image acquisition control module can reconstruct image data based on the detector data. The signal can include a signal for the source to output a single pulse or two pulses.

Abstract: The invention provides a mesoporous structured material having a stacked structure, including a mesoporous structured material and a planarization layer existing on a surface of the mesoporous structured material. wherein the mesoporous structured material consists of a mesoporous matrix having mesopores and a material existing in the mesopores, the mesopores are exposed on a surface of the mesoporous matrix, and the planarization layer is existing in the mesopores exposed on the surface of the mesoporous matrix.

Abstract: A technique for controlling the effects generated by the interaction of a plurality of laser pulses with a medium by selecting or varying the successive pulse parameters comprising: generating a plurality of laser pulses interacting with a medium; and selecting or varying the properties/parameters characterizing said laser pulses to control the effects resulting from the interaction among said plurality of laser pulses and said medium.

Abstract: A multilayer mirror for use in device lithography is configured to reflect and/or pattern radiation having a wavelength in the range of about 6.4 nm to about 7.2 nm. The multilayer mirror has a plurality of alternating layers of materials. The plurality of alternating layers of materials include first layers of materials and second layers of materials. The second layers have a higher refractive index for the radiation than the first layers. The materials of the first layers and the materials of the second layers are mutually chemically unreactive at an interface therebetween at temperatures less than 300° C. This may allow the mirrors to have a narrow boundary region of intermingled materials from alternating layers between the layers, for example of 0.5 nm or less in width, which may improve sharpness of the boundary region and improve reflectivity.

Abstract: A reflection surface 12 constituted by a transition metal having a core level absorption edge in the vicinity of a wavelength of a soft X-ray is formed on an inside of a vacuum vessel 14, and furthermore, there is provided a permanent magnet 13 for generating a magnetic field in a perpendicular direction to a longitudinal direction of the vacuum vessel 14 in a position of the reflection surface 12 by which the soft X-ray is to be reflected, and the soft X-ray to be linearly polarized light incident on the vacuum vessel 14 is reflected at plural times over the reflection surface 12 in a position where the magnetic field is applied in such a manner that magnetic scattering is increased by a resonant effect of a magnetic circular dichroism when the soft X-ray is reflected by the reflection surface 12.

Abstract: A resin structure manufacturing method includes filling a mold with a resin, fixing a first supporting substrate onto the resin filled in the mold, hardening the resin filled in the mold, fixing a second supporting substrate onto the first supporting substrate, demolding the resin from the mold using the second supporting substrate, and separating the first supporting substrate and the second supporting substrate after demolding.

Abstract: A method of manufacturing a structure includes a step of preparing a substrate including a silicon section, recessed sections and protruding sections formed by etching the silicon section, and a first insulating layer disposed on top portions of the protruding sections; a step of forming second insulating layers on sidewalls and bottom portions of the recessed sections; a step of forming seed layers containing metal above the bottom portions of the recessed sections; and a step of forming plating layers in such a manner that the recessed sections are filled with metal by electroplating. The second insulating layers contain an organopolysiloxane having at least one of a partial structure represented by the following formula (1) and a partial structure represented by the following formula (2): where R1, R2, and R3 represent alkyl groups identical to or different from each other.

Abstract: A multilayer optic device having an input face and an output face is provided. The optic device includes a high-index material layer having a first real refractive index 1??1 and a first absorption coefficient ?1, wherein the core comprises a first surface and a second surface, a low-index material layer having a second real refractive index 1??2 and a second absorption coefficient ?2, and a grading zone disposed between the high-index material layer and low-index material layer, the grading zone comprising a grading layer having a third real refractive index 1??3 and a third absorption coefficient ?3, such that 1??11>1??3>1??2, where at least a portion of one or more of the high-index material layer, the grading zone and the low-index layer comprises one or more corrugations along a first direction.

Abstract: A radiation system includes: a first support; a first structure rotatably coupled to the first support so that the first structure is rotatable about a first axis relative to the first support; a second structure rotatably coupled to the first structure so that the second structure is rotatable about a second axis that forms a non-zero angle relative to the first structure; and a first radiation source connected to the second structure; wherein the first structure and the second structure are parts of a capsule for accommodating at least a portion of a patient.

Abstract: A radiation control system and method are provided in which radiation delivered to a patient and/or the operator of the equipment is minimized. The radiation control system may be used in a large variety of applications including applications in which radiation source is used to inspect an object, such as, for example, medical imaging, diagnosis and therapy, in manufacturing operation using radiation, in airports scanning systems, in different security setups, and in nuclear reactors automation and process control. The radiation control system and method may also be used with 3D imaging.

Abstract: An integrated X-ray source is provided. The integrated X-ray source includes a target for emitting X-rays upon being struck by one or more excitation beams, and one or more total internal reflection multilayer optic devices in physical contact with the target to transmit at least a portion of the X rays through total internal reflection to produce X-ray beams, wherein the optic device comprises an input face for receiving the X rays and an output face through which the X-ray beams exit the integrated X-ray source.

Abstract: Among other things, an applicator means (20) for x-ray radiation therapy for the irradiation of surfaces, as well as a radiation therapy device are described, having an applicator element (21) for taking up a probe tip or a radiation source element of a radiation source means (11). In order to further develop applicator means (20) in such a way that it is especially suitable also for the irradiation of surfaces, it is provided that applicator element (21) for adjusting different beam characteristics has at least one element (27) for influencing the beam, in particular a lens element, which is disposed in an exchangeable manner at/in applicator element (21). In addition, an advantageous fastening means is described, by means of which applicator means (20) can be attached and fixed on the surface to be treated.

Abstract: A radiation generating apparatus includes a radiation generating unit which emits radiation from a focal point thereof; and a sighting projector unit including a reflector plate, a visible light source configured to irradiate the reflector plate with visible light, and a movable diaphragm configured to adjust an opening size of an aperture portion formed by a plurality of restriction blades. The reflector plate is composed of a concave mirror used to allow transmission of the radiation therethrough, and to form a visible-light-irradiated field by reflecting visible light from the visible light source in the direction of the aperture portion.

Abstract: A compound x-ray lens and method of fabricating these lenses are disclosed. These compound lenses use multiple zone plate stacking to achieve a pitch frequency increase for the resulting combined zone plate. The compound equivalent zone plate includes a first zone plate having an initial pitch frequency stacked onto a second zone plate to form an equivalent compound zone plate. The equivalent zone plate has a pitch frequency that is at least twice the initial pitch frequency. Also, in one example, the equivalent zone plate has a mark-to-space ratio of 1:1.

Abstract: The present invention relates to a double-multilayer monochromator. The monochromator comprises a base, a housing moveably mounted on the base and having in one side thereof at least one inlet window for the inlet of a X-ray beam and in another side thereof an outlet window for the outlet a monochromatized X-ray beam, support means mounted in the housing to support opposed mirror pairs, wherein each of the mirrors has a coated surface, each of said coated mirror surfaces being coated with a multilayer coating in alternating layers of a scatterer material (A) having a thickness dA and a spacer material (B) having a thickness dB. The present monochromator provides an enhanced purity of the synchrotron beam, where even and odd orders of higher harmonics are rejected. This is achieved in that the ratio dA:(dA+dB) on one of the facing mirrors of the mirror pairs is about 1:2 and the ratio dA:(dA+dB) on the other of the facing mirrors of the mirror pairs is about 1:3.

Abstract: A multilayer Laue Lens includes a compensation layer formed in between a first multilayer section and a second multilayer section. Each of the first and second multilayer sections includes a plurality of alternating layers made of a pair of different materials. Also, the thickness of layers of the first multilayer section is monotonically increased so that a layer adjacent the substrate has a minimum thickness, and the thickness of layers of the second multilayer section is monotonically decreased so that a layer adjacent the compensation layer has a maximum thickness. In particular, the compensation layer of the multilayer Laue lens has an in-plane thickness gradient laterally offset by 90° as compared to other layers in the first and second multilayer sections, thereby eliminating the strict requirement of the placement error.

Abstract: A therapeutic energy system for performing interstitial laser therapy and brachytherapy includes two categories of components. The first category includes components usable to perform both interstitial laser therapy and brachytherapy. The second category of components includes components usable to perform either interstitial laser therapy or brachytherapy, but not both. The components co-act to apply therapeutic energy to tissue. The components of the first system include components inserted percutaneously into the tissue, such that interstitial laser therapy and brachytherapy can be performed sequentially without removing and re-inserting percutaneous components. Components of the second category include components not requiring additional puncturing of the skin of a patient, such that removing and inserting components of the second category from a patient is done easily and painlessly. An energy probe component does not maintain a cavity around the tumor mass.

Abstract: An X-ray waveguide having a curved structure formed of a core and two claddings that sandwich the core and are mutually opposed, wherein when a y-axis is defined using as an origin a center of a circle, which defines a curvature radius of an interface a between a cladding A present on an inner circumference side of the curved structure of the two claddings, and the core, perpendicular to a tangent at an arbitrary point S and in a direction from the origin toward the interface b, a refractive index real part of the core in the interface a at a y0 is larger than a refractive index real part of the core in the interface b at a y1, and the refractive indexes become equal or larger as the y is increased.

Abstract: A device is used to precisely deliver the treatment plan created by an automatic planning system by positioning a single low energy radiation source, or a plurality of low energy sources connected to each other, in a predetermined parallel, planar, or similar geometry, each source equipped with blocking and attenuation mechanisms, thereby delivering a plurality of parallel overlapping beams indexed on a millimeter or submillimeter grid such that a concentration of dose is achieved at a variable depth in tissue relative to the dose where the radiation first enters the tissue. A plurality of overlapping beams indexed on a millimeter or submillimeter grid can converge on a target volume loaded with gold nanoparticles to deliver a tumorcidal dose of radiation in as little as a single session to tumor cells but not to normal cells or to deliver serial radiosurgical treatments.

Abstract: Provided is a radiation generating apparatus, including a radiation generating unit for emitting radiation through a transmission window, and a light projecting/sighting device including a light source for emitting visible light and a reflection mirror. At least one of the transmission window and the reflection mirror has variations in thickness for reducing shading of radiation which irradiates a radiation irradiation field.

Abstract: A system and method for producing an intensity modulated arc therapy (“IMAT”) treatment plan are provided. A plurality of segmentations are generated, from which the IMAT treatment plan is determined. Apertures within each segmentation are ordered by minimizing the total leaf movement between pairs of segmentations in adjacent angles, during which corresponding minimum total leaf movement values between such pairs are calculated. From these segmentations, a network model is used to select those segmentations to be used in the IMAT treatment plan. The apertures in the selected segmentations are then modified by minimizing total leaf movement relative to the selected segmentations, and subject to physical constraints such as a maximum leaf movement constraint or interdigitation constraint. Segmentation errors in the modified segmentations are then locally minimized using a network model and a row-non-convexity measure to determine the order in which apertures are to be optimized.

Abstract: An X-ray waveguide which: shows a small propagation loss of an X-ray; does not deteriorate owing to oxidation; and can be easily produced is realized with an X-ray waveguide, including: a core for guiding an X-ray in such a wavelength band that the real part of refractive index of materials is 1 or less; and a cladding for confining the X-ray in the core, in which: the cladding has a one-dimensional periodic structure consisting of at least two materials having different real parts of refractive index; one of the materials is inorganic one, and another one of materials is any of an organic material, a gas, or vacuum; and the core and the cladding are formed so that the critical angle for total reflection at the interface between the core and the cladding is smaller than a Bragg angle depending on the periodicity of the one-dimensional periodic structure.

Abstract: A material preferably in crystal form having a low atomic number such as beryllium (Z=4) provides for the focusing of x-rays in a continuously variable manner. The material is provided with plural spaced curvilinear, optically matched slots and/or recesses through which an x-ray beam is directed. The focal length of the material may be decreased or increased by increasing or decreasing, respectively, the number of slots (or recesses) through which the x-ray beam is directed, while fine tuning of the focal length is accomplished by rotation of the material so as to change the path length of the x-ray beam through the aligned cylindrical slots. X-ray analysis of a fixed point in a solid material may be performed by scanning the energy of the x-ray beam while rotating the material to maintain the beam's focal point at a fixed point in the specimen undergoing analysis.

Abstract: The present invention relates to X-ray differential phase-contrast imaging, in particular to a deflection device for X-ray differential phase-contrast imaging. In order to provide differential phase-contrast imaging with improved dose efficiency, a deflection device (28) for X-ray differential phase-contrast imaging is provided, comprising a deflection structure (41) with a first plurality (44) of first areas (46), and a second plurality (48) of second areas (50). The first areas are provided to change the phase and/or amplitude of an X-ray radiation; and wherein the second areas are X-ray transparent. The first and second areas are arranged periodically such that, in the cross section, the deflection structure is provided with a profile arranged such that the second areas are provided in form of groove-like recesses (54) formed between first areas provided as projections (56). The adjacent projections form respective side surfaces (58) partly enclosing the respective recess arranged in between.

Abstract: The present invention relates to X-ray differential phase-contrast imaging. In order to enhance the information acquired by phase-contrast imaging, an analyzer grating (34) for X-ray differential phase-contrast imaging is provided with an absorption structure (48). The latter comprises a first plurality (50) of first areas (52) with a first X-ray attenuation, and a second plurality (54) of second areas (56) with a second X-ray attenuation. The second X-ray attenuation is smaller than the first X-ray attenuation, and the first and second areas are arranged periodically in an alternating manner. A third plurality (58) of third areas (60) is provided with a third X-ray attenuation, which lies in a range from the second X-ray attenuation to the first X-ray attenuation, wherein every second of the first or second areas is replaced by one of the third areas.

Abstract: A composite crystal array for a pixelated gamma camera and a method of making thereof, which are adapted to a photoelectric matrix that consists of position sensitive photomultiplier elements, in which the photoelectric matrix is divided into sensible and non-sensible areas with a geometric distribution, so as to set a ratio of a segmented region; a configuration detail of a partial optical splitting crystal array and a configuration detail of a whole optical splitting crystal array are set according to the ratio of the segmented region; and the partial optical splitting crystal array and the whole optical splitting crystal array are made according to the two configuration details, and two kinds of crystal arrays are combined to form a whole crystal array for the pixelated cameras according to the segmented region, so that the effective area of the pixelated camera is kept continuous and the resolution thereof is kept uniform.

Abstract: The invention relates to an X-ray detector (30) that comprises an array of sensitive elements (Pi?1,b, Pia, Pib, Pi+1,a, Pi+1,b) and at least two analyzer gratings (G2a, G2b) disposed with different phase and/or periodicity in front of two different sensitive elements. Preferably, the sensitive elements are organized in macro-pixels (IIi) of e.g. four adjacent sensitive elements, where analyzer gratings with mutually different phases are disposed in front said sensitive elements. The detector (30) can particularly be applied in an X-ray device (100) for generating phase contrast images because it allows to sample an intensity pattern (I) generated by such a device simultaneously at different positions.

Abstract: An X-ray optical device includes a crystal containing a channel, which passes through the crystal and has multiple internal faces. A mount is configured to hold the crystal in a fixed location relative to a source of an X-ray beam and to shift the crystal automatically between two predefined dispositions: a first disposition in which the X-ray beam passes through the channel while diffracting from one or more of the internal faces, and a second disposition in which the X-ray beam passes through the channel without diffraction by the crystal.

Abstract: According to a method for manufacturing a metal grating structure of the present invention, in filling a concave portion formed in a silicon substrate (30), for instance, a slit groove (SD) with metal by an electroforming method, an insulating layer (34) is formed in advance on an inner surface of the slit groove (SD) as an example of the concave portion by a thermal oxidation method. Accordingly, the metal grating structure manufacturing method is advantageous in finely forming metal parts of the grating structure. A metal grating structure of the present invention is manufactured by the above manufacturing method, and an X-ray imaging device of the present invention is incorporated with the metal grating structure.

Abstract: An X-ray waveguide according to the present invention includes: a core for guiding an X-ray in such a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, wherein: the cladding has a periodic structure in which multiple materials having different real parts of the refractive index are periodically arranged in two-dimensional directions perpendicular to the guiding direction of X-ray; and the periodic structure has a period of 100 nm or less.

Abstract: An imaging area specifying apparatus that includes a storage component and a specifying component is provided. The storage component stores as correlation information a correlation value correlated with the amount of radiation emitted to each of a plurality of predetermined areas divided from a detection region of a radiation detector that outputs an electric signal indicating a radiological image represented by radiation which is emitted to the detection region for detecting the radiation. The specifying component specifies an imaging area capable of capturing the radiological image of a predetermined size while preventing variations in the amount of radiation emitted to each of the divided areas in the detection region, on the basis of the correlation information stored in the storage component.

Abstract: A particle beam therapy system that prevents dispersion of a charged particle beam, reduction of the energy thereof, and upsizing of the system and can accurately monitor the opening shape of a multileaf collimator so as to perform high-accuracy particle beam therapy. An image-capturing unit that takes an image of an outer end of a respective downstream side face of a leaf plate is provided for each row of leaves in such a way as to be situated at a position that is at an outer side of an irradiation field; and adjusted in such a way that a foot of a perpendicular line from a viewpoint, of the image capturing unit, to the downstream side face of a leaf plate, is situated at a position that is at an inner side of the position of the outer end when the leaf plate is maximally driven in the departing direction.

Abstract: The present invention provides an X-ray optical apparatus including an X-ray reflective structure in which at least three reflective substrates are arranged with an interval and an X-ray which is incident into a plurality of X-ray passages whose both sides are put between the reflective substrates is reflected from the reflective substrate at both sides of the X-ray passage to be parallelized and emitted from the X-ray passage. When an edge of the X-ray reflective structure is an inlet of the X-ray and the other edge is an outlet of the X-ray, a pitch of the reflective substrates at the outlet is larger than a pitch at the inlet. Therefore, it is possible to efficiently parallelize the incident X-ray to be emitted with a simple structure.

Abstract: A two-dimensional X-ray shield grating which may be manufactured more easily and to a manufacturing method to provide therefor is provided. The method of manufacturing the X-ray shield grating includes: a first step of forming a plurality of columnar structures periodically arranged in two directions; and a second step of forming a film which surrounds at least side surfaces of the respective plurality of columnar structures, in which, in the second step, portions of the film formed on side surfaces of columnar structures which are adjacent to each other in the two directions among the plurality of columnar structures are connected to each other in the two directions, and in which the film is formed so that a columnar aperture is formed between columnar structures which are diagonally adjacent to each other with respect to the two directions among the plurality of columnar structures.

Abstract: A compound zone plate comprising a first zone plate frame including a first zone plate, a second zone plate frame including a second zone plate, and a base frame to which the first zone plate frame and the second zone plate frame are bonded. In examples, two more zone plates are added to make a four element optic. In the assembly process, the microbeads are used to ensure the parallelism, dial in the distance precisely between the zone plates by selecting the microbead size, possibly in response to the width of the frames, and ensure low friction lateral movement enabling nanometer precision alignment of the zone plates with respect to each other prior to being fixed by the adhesive. That is, when the frames are pressed together to ensure parallelism, it is still possible to align them to each other since the microbead layer facilitates the inplane movement of the alignment process.

Abstract: The disclosure relates to an amplifying optical cavity of the Fabry-Perot type that can be used in combination with a high-rate picosecond pumped laser for generating monochromatic X-rays. The disclosure relates to an amplifying optical cavity of the Fabry-Perot type that can be used for obtaining a strongly focused pumped laser beam having a high stability at the average power PMOY.

Abstract: The present invention relates to foil-gratings for X-ray differential phase-contrast imaging, a detector arrangement and an X-ray imaging system for generating phase-contrast images of an object and a method of producing a foil-grating. In order to provide gratings with a high aspect ratio, a foil-grating (40) for X-ray differential phase-contrast imaging is provided with a first foil (42) of X-ray absorbing material; and at least a second foil (44) of X-ray absorbing material.

Abstract: The present invention relates to differential phase-contrast imaging, in particular to a structure of a diffraction grating, e.g. an analyzer grating and a phase grating, for X-ray differential phase-contrast imaging. In order to make better use of the X-ray radiation passing the object, a diffraction grating (14) for X-ray differential phase-contrast imaging is provided with at least one portion (24) of a first sub-area (26) and at least one portion (28) of a second sub-area (30). The first sub-area comprises a grating structure (54) with a plurality of bars (34) and gaps (36) being arranged periodically with a first grating pitch P G (38), wherein the bars are arranged such that thy change the phase and/or amplitude of an X-ray radiation and wherein the gaps are X-ray transparent. The second sub-area is X-ray transparent and wherein the at least one portion of the second sub-area provides an X-ray transparent aperture (40) in the grating.

Abstract: A contour collimator and an adaptive filter as well as an associated method for adjusting a contour of a ray path of x-ray radiation are provided. The contour collimator and the adaptive filter include fluid impermeable for x-ray radiation and a number of electroactive polymer elements actively connected to the fluid. On application of an electrical voltage to the electroactive polymer elements, an aperture forming the contour in the fluid is formed.

Abstract: A contour collimator or an adaptive filter for adjusting a contour of a ray path of x-ray radiation is provided. The apparatus includes a magnetic fluid that is impermeable to x-ray radiation and a number of switchable magnet elements, by which an aperture forming the contour may be formed in the magnetic fluid.

Abstract: According to some aspects, a hybrid optic is provided. The hybrid optic comprises a capillary optic for receiving x-rays from an x-ray source at an entrance portion of the capillary optic and for providing x-rays at an exit portion of the capillary optic, and a grazing incidence multi-shell optic (GIMSO) coupled, at an entrance portion of the GIMSO, to the exit portion of the capillary optic to receive x-rays emerging from the exit portion of the capillary optic, the GIMSO including an exit portion for providing x-rays.

Abstract: A radiation window membrane and for covering an opening in an X-ray device is presented, as well a method for its manufacturing. Said openings are such through which X-rays are to pass. The membrane comprises a window base layer and a pinhole-blocking layer on a surface of said window base layer. Said pinhole-blocking layer comprises graphene.

Abstract: An X-ray waveguide includes a core having a curved portion and a cladding. The core has a periodic structure made of different substances periodically arrayed perpendicular to a guiding direction. A critical angle for total reflection of an X-ray at a core-cladding interface is larger than a Bragg angle of the periodic structure. A critical angle for the total reflection of the X-ray at a substance interface in the periodic structure is smaller than the Bragg angle. When s is a core width in a direction perpendicular to the guiding direction and parallel to a curvature radius of the curved portion, nlow is a refractive-index real part of the substance having a minimum real part of refractive index, nhigh is a refractive-index real part of the substance having a maximum real part of refractive index, and R is the curvature radius, [s/ln(nhigh/nlow)]<R is satisfied.

Abstract: An X-ray imaging apparatus comprises an X-ray source; a housing configured to accommodate the X-ray source; and a plurality of supporting legs each connected to the housing via a movable connecting portion and configured to support the housing, wherein each of the supporting legs can change, by the movable connecting portion, a support angle made by a ground plane and the supporting leg.

Abstract: Radiation therapy equipment includes a multi-divided irradiation collimator leaf plates for setting irradiation field as approximately close to a target region as possible by avoiding backlashes due to a plurality of gears for driving a plurality of leaf plates. The plurality of leaf plates is respectively connected to a plurality of constant force springs that are coaxially supported by a pair of rotation shafts so as to be constantly forced in a closing direction. Each leaf plate is moved in an opening direction by rolling up a wire connected to the leaf plate.

Abstract: A nanotube based device for guiding a beam of x-rays, photons, or neutrons, includes a beam source and at least one nanotube. Each nanotube has an optical entrance positioned in a manner that a projection of the direction of the central axis at the optical entrance intersects with the beam source. Each nanotube may have an interior diameter that varies along the length of the nanotube. to point the entrances of a bundle of nanotubes toward a point-shaped beam source, the bundle can be grown as an array of multilayer nanotubes from a spherical growth plate. The clear aperture of the bundle is enhanced by providing a smaller number of wall layers of each nanotube near the growth plate than at a distance from the growth plate.