62 results about "Optical photon" patented technology

A flexible imager, for imaging a subject illuminated by incident radiation, includes a flexible substrate, a photosensor array disposed on the flexible substrate, and a scintillator. The scintillator is disposed so as to receive and absorb the incident radiation, is configured to convert the incident radiation to optical photons, and is optically coupled to the photosensor array. The photosensor array is configured to receive the optical photons and to generate an electrical signal corresponding to the optical photons. A digital imaging method for imaging subject includes conforming flexible digital imager to subject, the subject being positioned between flexible digital imager and a radiation source. The method further includes activating radiation source to expose the subject to radiation and collecting an image with the flexible digital imager.

The present invention is an indirect AMFPI wherein a phosphor such as a structured cesium iodide (CsI) is used to convert x-ray energy to optical photons or a charge, which is then detected by a two-dimensional array of either thin-film transistors (TFTs) such as an amorphous a-Se TFTs or a photodiode array. A scanning control circuit generates pulses to turn on the TFTs one row at a time, and thus the charge in the individual arrays is transferred from the TFT to one or more external charge-sensitive amplifiers. The charge-sensitive amplifiers are shared by all the pixels in the same column. The two-dimensional array can be read in real time.

An electro-optical system for exchanging quantum information between optical qubits and including a superconductive microwave cavity; an electro-optical material: a superconductive qubit circuit formed on the electro-optical material including a superconductive qubit; a dipole antenna, formed on the electro-optical material for directly coupling the superconductive qubit to the superconductive microwave cavity; an optical input for receiving input optical photons; a microwave input for receiving input microwave photons; and an optical output for outputting modulated optical photons, wherein a frequency and a phase of the optical photon is modulated with a state of the superconducting qubit by the dipole antenna.

An apparatus for selective radiation detection includes a neutron detector that facilitates detection of neutron emitters, e.g. plutonium, and the like; a gamma ray detector that facilitates detection of gamma ray sources, e.g., uranium, and the like. The apparatus comprises a first light guide, optically coupled to a first optical detector; a second light guide, optically coupled to a second optical detector a sheet of neutron scintillator, opaque for incoming optical photons, said sheet of neutron scintillator sandwiched between the first and the second light guides. The second light guide comprises a gamma ray scintillator material.

An imaging system includes a gantry having a bore therethrough designed to receive a patient being translated through the bore an x-ray source disposed in the gantry and configured to emit x-rays toward the patient, and a detector module disposed in the gantry to receive x-rays attenuated by the patient. The detector module includes a scintillator configured to absorb the x-rays and to convert the x-rays into optical photons, a device configured to receive the optical photons and to convert the optical photons to electrical signals, and an adaptive data acquisition system (DAS) configured to switch an operating mode of the device from a charge integrating mode to a photon counting mode, and vice versa.

The present invention provides for a device, a method, and a treatment system for chronic disease conditions. The present invention was designed using the theoretical concepts of Quantum Biology. The principles of operation are based on the device's ability to stimulate a Bose-Einstein condensate and excitation of Frolich resonance in living tissue The wavenumbers necessary for this excitation are derived from the solution to the equations for optical phonon scattering in living tissue generated by optical photon excitation. The establishment of this degeneracy condition induces a super conducting state in the tissue. This super conducting state facilitates DNA replication, transcription and translation, thereby allowing the proper formation or regeneration of healthy tissue. This superconducting state provides the conditions necessary for establishing the violation of time reversal invariance in living tissue.

A flexible imager, for imaging a subject illuminated by incident radiation, includes a flexible substrate, a photosensor array disposed on the flexible substrate, and a scintillator. The scintillator is disposed so as to receive and absorb the incident radiation, is configured to convert the incident radiation to optical photons, and is optically coupled to the photosensor array. The photosensor array is configured to receive the optical photons and to generate an electrical signal corresponding to the optical photons. A digital imaging method for imaging subject includes conforming flexible digital imager to subject, the subject being positioned between flexible digital imager and a radiation source. The method further includes activating radiation source to expose the subject to radiation and collecting an image with the flexible digital imager.

A detector module for a CT imaging system includes a scintillator to convert x-rays to optical photons. The scintillator is optically coupled to a solid-state photomultiplier with internal gain to receive the optical photons and convert them into a corresponding electrical signal output.

An electro-optical system for exchanging quantum information between optical qubits and including a superconductive microwave cavity; an electro-optical material; a superconductive qubit circuit formed on the electro-optical material including a superconductive qubit; a dipole antenna, formed on the electro-optical material for directly coupling the superconductive qubit to the superconductive microwave cavity; an optical input for receiving input optical photons; a microwave input for receiving input microwave photons; and an optical output for outputting modulated optical photons, wherein a frequency and a phase of the optical photon is modulated with a state of the superconducting qubit by the dipole antenna.

The present approach involves a radiation detector module with increased quantum efficiency and methods of fabricating the radiation detector module. The module includes a scintillator substrate and a photodetector fabricated on the scintillator substrate. The photodetector includes an anode, active organic elements, and a cathode. The module also includes a pixel element array disposed over the photodetector. During imaging, radiation attenuated by an object to be imaged may propagate through the pixel element array and through the layers of the photodetector to be absorbed by the scintillator which in response emits optical photons. The photodetector may absorb the photons and generate charge with improved quantum efficiency, as the photons may not be obscured by the cathode or other layers of the module. Further, the module may include reflective materials in the cathode and at the pixel element array to direct optical photons towards the active organic elements.

An imaging system includes a gantry having a bore therethrough designed to receive a patient being translated through the bore an x-ray source disposed in the gantry and configured to emit x-rays toward the patient, and a detector module disposed in the gantry to receive x-rays attenuated by the patient. The detector module includes a scintillator configured to absorb the x-rays and to convert the x-rays into optical photons, a device configured to receive the optical photons and to convert the optical photons to electrical signals, and an adaptive data acquisition system (DAS) configured to switch an operating mode of the device from a charge integrating mode to a photon counting mode, and vice versa.

The present invention is an indirect AMFPI wherein a phosphor such as a structured cesium iodide (CsI) is used to convert x-ray energy to optical photons or a charge, which is then detected by a two-dimensional array of either thin-film transistors (TFTs) such as an amorphous a-Se TFTs or a photodiode array. A scanning control circuit generates pulses to turn on the TFTs one row at a time, and thus the charge in the individual arrays is transferred from the TFT to one or more external charge-sensitive amplifiers. The charge-sensitive amplifiers are shared by all the pixels in the same column. The two-dimensional array can be read in real time.

The invention relates to a radiation detection device for integrating the number of optical photons in a light pulse. A system, a method and a computer program product are also disclosed. The radiation detection device comprises an optical detector pixel array which has a plurality of pixel cells that can be triggered by optical photons, a plurality of pixel cell trigger state sensing circuits, and a summing unit. Each pixel cell trigger state sensing circuit generates a digital signal having either a first predetermined amplitude indicative of a triggered pixel cell, or a second predetermined amplitude indicative of a non-triggered pixel cell. The summing unit generates an analogue signal whose amplitude corresponds to the number of triggered pixel cells and thereby performs the desired integration. The analogue signal may further cause a timing unit to generate a timestamp when a predetermined accumulated optical photon count condition is met.

In an apparatus and method to acquire images with the aid of high-energy photons for the examination soft tissue parts, two x-ray exposures are simultaneously obtained in different energy ranges. At least two scintillators that transmit optical photons to associated detectors are disposed in the beam path of the x-ray photons.

A microwave to optical conversion device comprising:a superconducting microwave resonator, andan optical resonator including an electro-optical material,the superconducting microwave resonator and the optical resonator being arranged one with respect to the other so as to be electro-magnetically coupled.

A general approach is provided for producing devices that absorb optical photons (visible to near IR) and performs charge separation with a useful voltage between holes and electrons. These holes and electrons may be collected in electrodes for performing useful work outside the device. The described technology is generally based upon rectification of plasmons (collective electric excitations) generated by absorbing light with tuned metallic antennas. According to some embodiments, the present invention provides a spatial array of nanoscale conductors forming an optical rectenna that responds to an incident light source and generates a current offset that may be rectified by a rectification-inducing material. The present inventors foresee an extensive use of these optical rectennas as photovoltaic devices, as well as a wide interest in diverse fundamental research and applied technologies.

A detector module for a CT imaging system includes a scintillator to convert x-rays to optical photons. The scintillator is optically coupled to a solid-state photomultiplier with internal gain to receive the optical photons and convert them into a corresponding electrical signal output.

A digital X-ray imaging system is provided. The digital X-ray imaging system includes an X-ray source and a digital X-ray detector. The digital X-ray detector includes a scintillator configured to absorb radiation emitted from the X-ray source and to emit optical photons in response to the absorbed radiation. The digital X-ray detector also includes multiple pixels, each pixel including a pinned photodiode and at least two charge-storage capacitors coupled to the pinned photodiode, wherein each pixel is configured to absorb the optical photons emitted by the scintillator and each pinned photodiode is configured to generate a photocharge in response to the absorbed optical photons. The digital X-ray detector further includes control circuitry coupled to each pixel of the multiple pixels and configured to selectively control a respective flow of the photocharge generated by the pinned photodiode to a respective charge-storage capacitor of the at least two charge-storage capacitors during integration.

The invention discloses a seedling cultivation light environment of leafy vegetables. In the light environment, a ratio of the number of optical photons with a wavelength of 380 to 399 nm is less than or equal to 0.1 percent, a ratio of the number of optical photons with a wavelength of 400 to 499 nm is 21 to 25 percent, a ratio of the number of optical photons with a wavelength of 500 to 599 nm is 14 to 15 percent, a ratio of the number of optical photons with a wavelength of 600 to 699 is 46 to 50 percent, and a ratio of the number of optical photons with a wavelength of 700 to 780 nm is 12 to 17 percent; in a wave band of 400 to 499 nm, a ratio of the number of the optical photons with a wavelength of 436 nm is greater than or equal to 1.3 percent, and a ratio of the number of the optical photons with a wavelength of 480 nm is greater than or equal to 0.79 percent; in the wave band of 600 to 699 nm, a ratio of the number of the optical photons with a wavelength of 630 nm is greater than or equal to 0.8 percent, and a ratio of the number of the optical photons with a wavelength of 660 nm is greater than or equal to 1.35 percent; and in a wave band of 700 to 780 nm, a ratio of the number of the optical photons with a wavelength of 730 nm is greater than or equal to 1.35 percent.

The invention provides a titanium dioxide (TiO2) photocatalysis composite film and a preparation method thereof. The titanium dioxide (TiO2) photocatalysis composite film is generated in situ on a titanium alloy (Ti-6Al-4V) substrate by adopting a micro-arc oxidation (MAO) method, the film contains grains of rare earth oxides of europiumsesquioxide (Eu2O3) in a one-dimensional structure, and the film has the crystalling phase of anatase. Eu2O3 grains have the effect of catalysts or catalyst accelerators in the TiO2 photocatalysis composite films, and the compounding time of TiO2 photo-induced electrons and hole pairs can be prolonged in the photocatalysis process, so the optical photon yield can be improved. The invention is applied to the photocatalysis purification field. Compared with uncompounded TiO2 films, the TiO2 photocatalysis composite film of the invention has the advantages that the absorption efficiency on ultraviolet light and visible light is obviously improved, the degradation efficiency of the organic pollution can be improved by about one time.

A method and system for nuclear imaging normally involve detection of energy by producing at most two or three bursts of photons at a time in response to events including incident gamma radiation. F number of sharing central groups of seven photodetectors, depending on the photodetector array size, is arranged in a honeycomb array for viewing zones of up to F bursts of optical photons at a time for each continuous detector and converting the bursts of optical photons into signal outputs, where each of the central groups is associated with a zone. This enables the detector sensitivity to be increased by as much as two orders of magnitude, and to exchange some of this excess sensitivity to achieve spatial resolution comparable to those in CT and MRI, which would be unprecedented. Signal outputs that are due to scattered incident radiation are rejected for each of the central groups to reduce image blurring, thereby further improving image quality. For planar imaging, the energy and position signals of up to the F number of valid events are generated once every deadtime period and transferred to computer memory for image display and data analysis. The number of valid events detected is up to 6F for SPECT and up to 3F for PET imaging.

In an apparatus and method to acquire Images with the aid of high-energy photons for the examination soft tissue parts, two x-ray exposures are simultaneously obtained in different energy ranges. At least two scintillators that transmit optical photons to associated detectors are disposed in the beam path of the x-ray photons.

A radiation detection device integrates the number of optical photons in a light pulse. The radiation detection device includes an optical detector pixel array which has a plurality of pixel cells that are triggered by optical photons, a plurality of pixel cell trigger state sensing circuits, and a summing unit. Each pixel cell trigger state sensing circuit generates a digital signal having either a first predetermined amplitude indicative of a triggered pixel cell, or a second predetermined amplitude indicative of a non-triggered pixel cell. The summing unit generates an analog signal whose amplitude corresponds to the number of triggered pixel cells and thereby performs the integration. The analog signal may further cause a timing unit to generate a timestamp when a predetermined accumulated optical photon count condition is met.

The present approach involves a radiation detector module with increased quantum efficiency and methods of fabricating the radiation detector module. The module includes a scintillator substrate and a photodetector fabricated on the scintillator substrate. The photodetector includes an anode, active organic elements, and a cathode. The module also includes a pixel element array disposed over the photodetector. During imaging, radiation attenuated by an object to be imaged may propagate through the pixel element array and through the layers of the photodetector to be absorbed by the scintillator which in response emits optical photons. The photodetector may absorb the photons and generate charge with improved quantum efficiency, as the photons may not be obscured by the cathode or other layers of the module. Further, the module may include reflective materials in the cathode and at the pixel element array to direct optical photons towards the active organic elements.

The invention relates to a method for fast identifying the meadow type high fescue heat-proof quality in the field of cool quaternary type meadow resistance identifying biology technology. It puts the best seed of the meadow type high fescue species in the basin with the sand, clay and nutritious soil (the volume ratio is 1:3:3), and breeds it for 18 days at normal temperature, wherein part plant moves to the artificial climate case with the temperature of 35í‚0.5 deg. in daytime and the temperature of 30í‚0.5 deg. in dark time with the optical photon 150-200ª–molm-2 s-1 and the percentage humidity 65-70úÑ for three days. It adds non-nutrients during the breeding course. It separately collects the meadow type high fescue health leaf at normal temperature and the high temperature and measures the chlorophyll a and b content of unit weight of the leaf tissue.

The invention discloses an APP-set bracelet type optical photon radial artery detection and treatment all-in-one device. The device comprises a control management circuit unit, a display unit, a radial artery detection module, an optical output security module, a laser treatment module, a key, a rechargeable battery, an external charging power supply, a display screen, a waterproof shell, a bottom cover and a bracelet, wherein the control management circuit unit is composed of an MCU (Microprogrammed Control Unit) central processing unit, a bluetooth module, a vibration prompter, a peripheral management circuit and a power management circuit; the bluetooth module, the display unit, the radial artery detection module, the optical output security module, the laser treatment module, the key, the vibration prompter, the peripheral management circuit and the power management circuit are respectively connected with the MCU central processing unit; the rechargeable battery and the external charging power supply are respectively connected with the power management circuit; the bluetooth module is in wireless connection with an APP software platform of a smartphone and is used for controlling all parameters of the laser treatment module, the radial artery detection module, the optical output security module, the vibration prompter and the display unit.

A solid state photomultiplier includes at least one microcell configured to generate an initial analog signal when exposed to optical photons. The solid state photomultiplier further includes a quench circuit electrically coupled with the at least one microcell. The quench circuit includes at least one quench resistor configured to exhibit a substantially constant temperature coefficient of resistance over a selected temperature range.

The invention discloses a polyolefin optical photon gas-permeable membrane and a preparation method thereof, and relates to the technical field of polymer composite materials. The polyolefin optical photon gas-permeable membrane is prepared from, by mass, 35-50% of polyolefin resin mixture, 45-60% of inorganic filler and 3-5% of additives, wherein the inorganic filler comprises an optical photon material. The polyolefin optical photon gas-permeable membrane has the advantages that an excellent biological activity preservation function is provided by virtue of the optical photon effect of quantum dots and special biological activity of special spectral response, wherein on the one hand, the high gas permeability of the membrane promotes the diffusion of oxygen and carbon dioxide, thereby effectively diluting the carbon dioxide produced by plant respiration, slowing down the reproduction of anaerobic bacteria and plant spoilage; on the other hand, an optical photon field released by thequantum dots can act on plant cells, thereby inhibiting the evaporation of water, and activating cells or stimulating the cell activity to delay the spoilage and deterioration, and finally achieving the high-quality preservation effect.

The invention discloses an on-chip photonic neural network device based on a cascaded optical coupler, a chip and an application method of the on-chip photonic neural network device. The photonic neural network device comprises an all-optical photonic neural network. The all-optical photon neural network comprises an amplitude modulation unit, multiple layers of neurons and a detection unit. The amplitude modulation unit comprises N0 amplitude modulators; the multi-layer neuron comprises M repetitive units, wherein each repetition unit comprises a plurality of amplitude modulation phase modulators and an MIMO optical coupler, the plurality of amplitude modulation phase modulators of any mth repetition unit are used for performing amplitude modulation and phase modulation on Nm-1 paths of input optical signals respectively and then obtaining Nm paths of output through the MIMO optical couplers, and the detection unit comprises NM paths of detectors. According to the invention, an all-optical photon neural network deep learning system with large bit width input can be realized in an on-chip integrated system on the basis of the cascaded optical coupler, the calculation overhead of aforward reasoning process after training learning is completed is extremely low, the power consumption is low, the on-chip system is easy to integrate, and large bit width data input is supported.