98 results about "Photon radiation" patented technology

This invention relates to single session image guided all field simultaneous radiation therapy combined with hyperthermia. Hyperthermia renders the radiation resistant cells as more radiation sensitive cells. The high and super-high dose rate radiation greatly improves the RBE of the photon radiation. It also minimizes photon radiation therapy's OER and cell cycle dependent tumor cell kill by minimizing the repair capacity of cell after photon radiation. Single session hyperthermia and radiation therapy overcomes the thermotolerance-associated inefficiency of hyperthermia treatment as it is when hyperthermia is combined with fractionated, lower dose rate radiation. The synergetic effects of sublethal damage repair inhibiting single session hyperthermia-combined with high dose and dose rate single session radiation therapy, and combined chemotherapy brings the photon radiation therapy's tumor cure and control capabilities closer to high LET radiation therapy.

The present invention relates generally to fabricating two-terminal electric microswitches comprising thin semiconductor films and using these microswitches to construct column-row (x-y) addressable microswitch matrices. These microswitches are two terminal devices through which electric current and electric potential (or their derivatives or integrals) can be switched on and off by the magnitude or the polarity of the external bias. The microswitches are made from semiconducting thin films in a electrode / semiconductor / electrode, thin film configuration. Column-row addressable electric microswitch matrices can be made in large areas, with high pixel density. Such matrices can be integrated with a sensor layer with electronic properties which vary in response to external physical conditions (such as photon radiation, temperature, pressure, magnetic field and so on), thereby forming a variety of detector matrices.

A system for radiating plants with photon radiation to induce photomorphogenic growth is described. The system includes a light assembly operable to transmit photon radiation, a light transmittive material located between the light assembly and a plant, a power supply connected to the light assembly, a failsafe switch connected to and located between the power supply and the light assembly and a photomorphogenic growth controller connected to the light assembly. The power supply is operable to energize the light assembly and the failsafe switch is operable to de-energize the light assembly when a safety signal is received by the failsafe switch. The photomorphogenic growth controller is operable to selectively energize the light assembly.

The present invention discloses a system (1) for administering medical therapy by means of directing energy radiation onto a patient's body. The novel system comprising the following: an assembly for directing said energy in a predetermined measure comprising a means for emitting energy to be directed toward the patient's body, and communications means, a treatment protocol defining a set of parameters according to which the emitted energy is to be delivered, such parameters including predetermined points on the patient's body whereat the energy is to be directed and a system for controlling the emitted radiation according to the protocol. The present invention also discloses a method for administration of laser acupuncture by means of a medical device comprising an emitter of photonic radiation directed to an acupuncture point and an imaging sensor for monitoring and controlling the treatment.

The present invention relates generally to fabricating two-terminal electric microswitches comprising thin semiconductor films and using these microswitches to construct column-row (x-y) addressable microswitch matrices. These microswitches are two terminal devices through which electric current and electric potential (or their derivatives or integrals) can be switched on and off by the magnitude or the polarity of the external bias. The microswitches are made from semiconducting thin films in a electrode / semiconductor / electrode, thin film configuration. Column-row addressable electric microswitch matrices can be made in large areas, with high pixel density. Such matrices can be integrated with a sensor layer with electronic properties which vary in response to external physical conditions (such as photon radiation, temperature, pressure, magnetic field and so on), thereby forming a variety of detector matrices.

A method includes supplying current to at least one photovoltaic device via a current source and detecting emitted photon radiations from the at least one photovoltaic device via a radiation detector. The method also includes outputting a signal corresponding to the detected emitted photon radiations from the radiation detector to a processor device, and processing the signal corresponding to the detected emitted photon radiations via the processor device to generate one or more two-dimensional photon images. The method further includes analyzing the one or more two-dimensional photon images to determine at least one defect in the at least one photovoltaic device.

Electro-thermal feedback is utilized for zeroing the thermal conductance between a bolometer type detector element of a pixel in a thermal radiation sensor assembly and the environments through its mechanical support structure and electrical interconnects, thereby limiting the thermal conductance primarily through photon radiation. Zeroing of the thermal conductance associated with the mechanical support and electrical readout interconnect structures is achieved by electro-thermal feedback that adjust the temperature of an intermediate stage by the heating effect of a bipolar transistor amplifier circuit so that the temperature across the mechanical support and electrical interconnects structures are zeroed thereby greatly improving the thermal isolation, the responsivity and sensitivity of the electromagnetic radiation sensor.

The present invention is related to a water phantom for measuring and determining the dose distribution of radiation produced by a particle beam or photon radiation beam comprising: a water tank, the water tank having a lower base and side walls; supply means for supplying water to the water tank. The water tank comprises an intermediate base that forms, together with side walls and said lower base, a closed lower tank underneath said intermediate base and an upper tank above said intermediate base, the closed lower tank being connected to the supply means and allowing the flow of water toward said upper tank through a plurality of water admission passages defined in the intermediate base to provide an unturbulent water flow within said water tank 2.

The invention provides a cereal freshness detecting method and device. According to the method, acquired character information of standard cereals with different varieties and terahertz transmission spectra obtained after tabletting the standard cereals are stored, and a standard spectrum library is built; performing Fourier transformation on the acquired time-domain spectroscopy of the tabletting terahertz spectrum of one sample cereal to be detected, so as to obtain a terahertz spectrum chart, and calculating to obtain corresponding refractive index spectrum and absorption coefficient spectrum; calculating mean square errors and correlation coefficients for the calculation results and each standard data set of the standard spectrum library, and taking the character information corresponding to the standard data sets with the smallest mean square error and the greatest correlation coefficient as the terahertz spectrum detection conclusion of the sample cereal to be detected. The cereal freshness detecting device corresponds to the cereal freshness detecting method. As terahertz is very safe, is extremely small in photon radiation energy and cannot injure human bodies, the method and the device are suitable for field detection on grain quality, the detection accuracy is high, and the effect is good.

Electro-thermal feedback is utilized for reducing the effective thermal conductance between the detector stage of a bolometer pixel in a thermal radiation sensor assembly and the environment through its mechanical support structure and electrical interconnects, thereby coming closer to achieving thermal conductance limited primarily through photon radiation. Minimization of the effective thermal conductance associated with the mechanical support structure and electrical interconnects is achieved by electro-thermal feedback that adjusts the temperature of an intermediate stage and the mechanical support structure and electrical interconnects, connecting it to the detector stage, to equal the temperature of the bolometer pixel's detector stage (i.e., by active thermal isolation). Increased temperature sensitivity is preferably achieved through temperature sensing with reverse biased Schottky diodes connected in series.

Electro-thermal feedback is utilized for zeroing the thermal conductance between a bolometer type detector element of a pixel in a thermal radiation sensor assembly and the environments through its mechanical support structure and electrical interconnects, thereby limiting the thermal conductance primarily through photon radiation. Zeroing of the thermal conductance associated with the mechanical support and electrical readout interconnect structures is achieved by electro-thermal feedback that adjust the temperature of an intermediate stage by the heating effect of a bipolar transistor amplifier circuit so that the temperature across the mechanical support and electrical interconnects structures are zeroed thereby greatly improving the thermal isolation, the responsivity and sensitivity of the electromagnetic radiation sensor.

A method for testing the sensitivity of electronic components and circuits against particle and photon beams using plasma acceleration, in which the flexibility of the multifaceted interaction can produce several types of radiation such as electron, proton, ion, neutron and photon radiation, and combinations of these types of radiation, in a wide range of parameters that are relevant to the use of electronic components in space, such as satellites, at high altitudes or in facilities that work with radioactive substances such as nuclear power plants. Relevant radiation parameter ranges are accessible by this method, which are hardly accessible with conventional accelerator technology. Because of the compactness of the procedure and its versatility, radiation testing can be performed in smaller laboratories at relatively low cost.

The invention belongs to the field of quantum information, in particular to a method for generating two-photon radiation on the basis of a single quantum dot. Generation of two photons has great significance in the quantum information field such as quantum key distribution, quantum entanglement, quantum measurement and the like. The method for generating two-photon radiation on the basis of the single quantum dot is provided and comprises steps as follows: firstly, a near infrared single quantum dot is prepared on a slide with a indium tin oxide film formed through evaporation plating; then, indium tin oxide nanoparticles cover the single quantum dot; the indium tin oxide nanoparticles are spin-coated with polystyrene polymer films, and influence of the external environment on the quantum dot is effectively isolated; laser co-focusing is performed on the sample, and two-photon fluorescence radiation is generated for the single quantum dot. With the adoption of the indium tin oxide nanoparticles, nonradiative auger recombination of biexciton of the quantum dot is effectively inhibited, and two-photon radiation of the single quantum dot is realized.

The present invention is related to a water phantom for measuring and determining the dose distribution of radiation produced by a particle beam or photon radiation beam comprising: a water tank; means for varying the water level in said water tank; an acquisition detector positioned in a fixed position related to the water tank opposite to the beam, wherein said acquisition detector is a two dimensional detector comprising a plurality of sensors and capable of simultaneously measuring the dose in a plurality of points in an area. Subsequent measurements are performed varying each time the water level within the water tank, until the dose distribution in the entire volume of the water tank is obtained.

A fiber-optic scintillation radiation detector includes: a cladding; a core extending within the cladding; and a scintillator contiguous with the core within the cladding responsive to particle and / or photon radiation by providing scintillation photons, which are then primarily propagated in the core.

A skin radiation apparatus comprises: —a photon radiation unit (10) for generating a line-shaped radiation pattern (12) extending in a first direction (x), the photon radiation unit comprising a photon radiation source (14), —a movement facility (20, 22) for moving the line shaped radiation pattern in a second direction (y) transverse to the first direction (x), —a detection unit (30) for detecting a skin condition profile, —a control unit (40) for controlling an power density distribution for the line-shaped radiation pattern dependent on the skin condition profile detected by the detection unit (30).

A method for analyzing an object, includes irradiating the object with incident photon radiation, acquiring a spectrum transmitted by the object using a spectrometric transmission detector, determining at least one first property of the object from the transmission spectrum, verifying that at least one doubt criterion relating to the first property of the object is met, and translating the fact that the object contains a material that is potentially dubious for the application under consideration. A second part, carried out only when the doubt criterion is met, includes acquiring an energy spectrum scattered by the object using a spectrometric scattering detector at an angle of 1° to 15°, and determining a second property of the object from at least the scatter spectrum and comparing at least the second property of the object with properties of standard materials stored in a database to identify the objects composition material.

The present invention is directed to adjustable chromophore compounds and materials (e.g., ophthalmic lens materials) incorporating those compounds. The adjustable chromophore compounds include a chemical moiety that structurally changes upon exposure to predetermined electromagnetic radiation (e.g., two photon radiation) as well as lens materials, particularly intraocular lens materials that incorporate those compounds.

A method for testing the sensitivity of electronic components and circuits against particle and photon beams using plasma acceleration, in which the flexibility of the multifaceted interaction can produce several types of radiation such as electron, proton, ion, neutron and photon radiation, and combinations of these types of radiation, in a wide range of parameters that are relevant to the use of electronic components in space, such as satellites, at high altitudes or in facilities that work with radioactive substances such as nuclear power plants. Relevant radiation parameter ranges are accessible by this method, which are hardly accessible with conventional accelerator technology. Because of the compactness of the procedure and its versatility, radiation testing can be performed in smaller laboratories at relatively low cost.

The present invention relates to a device for obtaining the ion source of a mass spectrometer using an ultraviolet diode and a CEM module, having the purpose of inducing initial electron emission using a CEM module and by radiating ultraviolet photons emitted from the ultraviolet diode to the entrance of the CEM module to obtain a large amount of amplified electron beams from the exit and to produce electron beams the emission times of which are accurately controlled at low temperature and at low power. The present invention is characterized by a device for obtaining the ion source of a mass spectrometer using an ultraviolet diode and a CEM module, the device consisting essentially of: an ultraviolet diode emitting ultraviolet rays by means of supplied power; an electron multiplier inducing and amplifying the initial electron emission of ultraviolet photons from the ultraviolet diode and obtaining a large amount of electron beams from the exit; an electron condenser lens condensing the electron beams amplified by the electron multiplier; an ion trap mass separator ionizing gas sample molecules by the electron beams injected through the electron xondensing lens; and an ion detector detecting ions separated from the ion trap mass separator by mass spectrum, wherein the electron multiplier is a CEM module.

The invention discloses a method for detecting a biological ultra-weak photon radiation spectrum. The method includes the steps firstly, delayed luminescence curve data of a living biological sample on different wave lengths are collected accurately, and then fitting is performed on measurement data under the wave lengths by the utilization of the least square method according to the kinetic equation of cell delayed luminescence. Kinetic equation parameters obtained in fitting comprise parameters ISL for describing spontaneous luminescence of the sample, and the parameters are the spontaneous luminescence intensity under the wave lengths. Through the method, the spontaneous photon radiation spectrum of the sample can be measured indirectly. The problem that due to the fact that the spontaneous photon radiation intensity of the sample is too low, the spectrum of the sample cannot be detected directly is avoided.

This invention relates to a method and a device for increasing yield of seeds by intelligently physical treatment, in particular to a method and a device for increasing yield of seeds by performing physical magnetization, static electricity and photon radiation on the seeds. The device is provided with a bracket box body, a feeder hopper, a conveyer device and a discharge hole. A permanent magnetic field is arranged between the feeder hopper and the conveyer device; a material trimmer is arranged on the feeding end of the conveyer device; a vibrator and a static generator are arranged on the lower side of the conveyer device; and a monochromatic spectrum radiation device, such as a monochromatic LED light source and a specifically processed rare earth lamp, is arranged above the conveyer device. A temperature control device and a cooling exhaust device are arranged on one side of the box body. For convenient operation, an intelligent control panel is arranged on the outer side of the bracket box body. The device has compact and rational structure, is safe and convenient to operate, free of pollution in production and suitable for promotion in large scale, and has obvious effect of increasing yield.

A method includes supplying current to at least one photovoltaic device (12) via a current source (14) and detecting emitted photon radiations from the at least one photovoltaic device (12) via a radiation detector (16). The method also includes outputting a signal corresponding to the detected emitted photon radiations from the radiation detector (16) to a processor device (18), and processing the signal corresponding to the detected emitted photon radiations via the processor device (18) to generate one or more two-dimensional photon images. The method further includes analyzing the one or more two-dimensional photon images to determine at least one defect in the at least one photovoltaic device (12).

The invention discloses a device for quantitative measurement of symptom in traditional Chinese medicine by use of human bio-photon radiation, which comprises a darkroom, a detector, a front amplifier and a processor. The detector is positioned inside the darkroom, the front amplifier is electrically connected with the detector, the processor is electrically connected with the front amplifier, the detector is used for measuring bio-photons from an acupoint, the front amplifier is used for converting and amplifying the bio-photon signals received by the detector, and the processor is used for recording the intensity of the bio-photons emitted from the acupoint and processing the measurement value. The invention also discloses a method for quantitative measurement of symptom in traditional Chinese medicine by use of human bio-photon radiation, which comprises the following steps: a person enters the darkroom, the detector moves to the position close to a to-be-tested acupoint, a shutter on the detector is opened to measure the bio-photons from the to-be-tested acupoint, and then the processor records the intensity of the bio-photons emitted from the acupoint and processes the measurement value. The invention is rapid, sensitive, reliable, and harmless to human body.

The invention consists of an area dosimeter for measuring the ambient equivalent dose (H*(10)) of photon radiation with a diffuser, a detector card with at least one pair of detection elements, preferably LiF-chips,whereby the first of the two detection elements is positioned between two filters in order to spectrally filter the photon radiation,whereby the second of the two detection elements is not positioned between such filters as those of the first detection element, in order that the photon radiation arriving at the second detection element have a different spectral distribution as the spectrally filtered photon radiation arriving at the first detection element. The two measurement values are used to obtain a weighted sum in order to achieve an optimized response characteristic, in particular in the range below 30 keV and if applicable in the range above 1.3 MeV.