摘要:
An X-ray imaging system is provided that includes a target for emitting X-rays and having at least one target focal spot, and an array of multilayer optic devices for transmitting X-rays through total internal reflection. The array of multilayer optics devices are in optical communication with the at least one target focal spot. Further, a method for imaging an object with an X-ray imaging machine is provided. Also, a method for forming a stack of multilayer optic devices is provided.
摘要:
An optic device, system and method for making are described. The optic device includes a first solid phase layer having a first index of refraction with a first photon transmission property and a second solid phase layer having a second index of refraction with a second photon transmission property. The first and second layers are conformal to each other. The optic device may be fabricated by vapor depositing a first layer and then vapor depositing a second layer thereupon. The first layer may be deposited onto a blank or substrate. The blank or substrate may be rotated during deposition. Further, a computer-controlled shutter may be used to alter the deposition rate of material along an axis of the optic device. Alternatively, the optic device may be moved at varying speeds through a vapor stream to alter the deposition rate of material.
摘要:
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−δ1 and a first absorption coefficient β1, wherein the core comprises a first surface and a second surface, a low-index material layer having a second real refractive index 1−δ2 and a second absorption coefficient β2, 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−δ3 and a third absorption coefficient β3, such that 1−δ1 1>1−δ3>1−δ2, 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.
摘要:
A mammograph is provided. The mammograph includes a source of X-rays; a detector of X-rays, the source being configured to emit at least one beam of X-rays to the detector; and an optic control device configured to control the direction of X-rays emitted by the source such that the X-rays emitted by the source are substantially parallel to one another.
摘要:
A craser device, imaging system utilizing a craser device, and a method of imaging. The craser device includes a gain medium with excited gain medium atoms that emit x-ray and/or gamma-ray photons, a transmission medium abutting the gain medium, and a reflecting mirror comprising one or more lower refractive index layers and abutting the transmission medium. The transmission medium has a higher refractive index than the gain medium and at least one of the materials in the reflecting mirror. The x-ray and/or gamma-ray photons are confined to the transmission medium via total internal reflection and interact multiple times with the excited gain medium atoms through evanescent waves producing amplified stimulated emission leading to formation of a high intensity incoherent or coherent x-ray and/or gamma-ray beam.
摘要:
An optic device includes a multilayer zone forming a redirection section for redirecting and transmitting photons through total internal reflection, each multilayer zone including a high index material having a first real refractive index n1 and a first absorption coefficient β1, a low index material having a second real refractive index n2 and a second absorption coefficient β2, and a grading zone disposed between the high index material and the low index material and including a grading layer having a third real refractive index n3 and a third absorption coefficient β3, wherein n1>n3>n2.
摘要:
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−δ1 and a first absorption coefficient β1, wherein the core comprises a first surface and a second surface, a low-index material layer having a second real refractive index 1−δ2 and a second absorption coefficient β2, 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−δ3 and a third absorption coefficient β3, such that 1−δ11>1−δ3>1−δ2, 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.
摘要:
An X-ray detection and inspection system is disclosed. The system includes an X-ray source configured to generate an interrogating X-ray beam, wherein the X-ray beam is directed towards a probe volume in a sample, one or more two-dimensional area detectors, wherein the one or more detectors are positioned at angles other than 90 degrees with respect to the direction of the interrogating beam and are configured to receive and detect non-circular conic sections of diffracted X rays from the probe volume, and an acquisition and analysis system configured to generate position and intensity data of the non-circular conic sections such that the corresponding mathematical equations of the conic sections could be generated, to identify one of a quasi-monochromatic or monochromatic XRD pattern from the non-circular conic sections, and to determine a position of the probe volume and at least two Bragg diffraction angles from said XRD pattern.
摘要:
Systems and methods for highly collimated and temporally variable X-ray beams. Disclosed herein is a system for producing a collimated X-ray beam, the system including one or more distributed electron sources configured to produce electron beams, one or more X-ray production targets configured to receive the electron beams and to generate X-ray beams at X-ray focal spots, X-ray optics configured to collect the X-ray beams from the X-ray focal spots, wherein the X-rays optics are configured to focus the X-ray beams to a single virtual focal spot, and an X-ray collimator configured to collimate the X-ray beams from the virtual focal spot to generate the collimated X-ray beam.
摘要:
A craser device, imaging system utilizing a craser device, and a method of imaging. The craser device includes a gain medium with excited gain medium atoms that emit x-ray and/or gamma-ray photons, a transmission medium abutting the gain medium, and a reflecting mirror comprising one or more lower refractive index layers and abutting the transmission medium. The transmission medium has a higher refractive index than the gain medium and at least one of the materials in the reflecting mirror. The x-ray and/or gamma-ray photons are confined to the transmission medium via total internal reflection and interact multiple times with the excited gain medium atoms through evanescent waves producing amplified stimulated emission leading to formation of a high intensity incoherent or coherent x-ray and/or gamma-ray beam.