32 results about "Radiation measuring device" patented technology

The invention relates to a radiation measurement device comprising a scintillator (12) and a light detector (14), in which an optical pad (22) is arranged between the scintillator (12) and the light detector (14), and the optical pad (22) has a pot-shaped design and has a body (24) with a base (26) and a circumferential wall (28), in which the body (24) has a receiving area (30), the light detector (14) is at least partially accommodated in the receiving area. The invention also relates to an optical mat (22).

The invention relates to the technical field of radiation detection, and discloses a double-wire proportional counter tube and a signal processing method thereof. The double-wire proportional counter tube comprises a cavity made of TU2 oxygen-free copper, two 50 [mu] m gold-plated tungsten wires are arranged in the cavity in parallel to serve as anode wires, the distance between the wires is 1.8 cm, and the anode wires are led out through ceramic insulation terminals. And P10 gas is filled in the cavity. And the signal processing module comprises a pre-amplification circuit, a coincidence circuit, a main amplification circuit and a data acquisition unit, and is used for carrying out coincidence processing on the two paths of anode signals and screening effective signals. The signal processing method comprises the steps of gas ionization, electron avalanche amplification and signal synchronous judgment and recording. The ray measuring device integrates the counting tube, a gas path system and a data acquisition system, background noise is reduced through a coincidence circuit, and an energy spectrum analysis module can be selected to distinguish alpha rays and beta rays. The invention has the advantages of simple structure, high sensitivity, low background noise and the like.

1. The name of the design product: radiation measuring device. 2. The use of the design product: the design product is used for monitoring the radiation dose field of the environment radiation and analyzing the radionuclide deposition characteristics. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application relates to a ratio type radiation sensing device with nonlinear response to dose rate and a use method thereof, and relates to a scintillator radiation measuring device with nonlinear change of luminous intensity and use method, and aims to solve the technical problems of low measuring precision, complex structure, poor reliability, poor real-time performance and poor applicability of existing radiation sensors. The ratio type radiation sensing device with nonlinear response to dose rate comprises an X-ray excitation module, a mixed sensing probe and a light signal collection module; wherein the mixed sensing probe is a round piece pressed by uniformly mixing NaLuF4:3Pr,5Er nanocrystals and NaLuF4:3Ce nanocrystals. The use method of the device is a standard curve method. The device can realize accurate detection in a wide range of 1.86-14.95 mGy / s, and can be used in the fields of environmental monitoring, biomedical imaging and public security inspection.

The invention discloses a paper feeding method for a radioactive aerosol activity monitor with a constant linear speed, and belongs to the technical field of nuclear radiation measuring instruments, and the method comprises the following steps: 1, mounting filter paper; 2, feeding filter paper; and 3, paper feeding detection. According to the invention, the PLC controller is controlled to control the motor to rotate at a constant linear speed, so that the filter paper always moves at a constant speed, the stability of sampling flow in a gas circuit is ensured, and the accuracy of a monitoring result is ensured; and meanwhile, the stability of the damping of the filter paper shaft is ensured, and the filter paper is prevented from being broken due to increased damping or being not accurately monitored due to decreased damping.

The utility model relates to an irradiation field scattered radiation measuring device for boron neutron capture therapy equipment, which comprises a horizontal support rod provided with scales; the adjustable supports are arranged at intervals and used for supporting the horizontal supporting rods and adjusting the heights of the horizontal supporting rods; and the multiple groups of measuring assemblies are detachably clamped on the horizontal supporting rod, and the positions of the measuring assemblies clamped on the horizontal supporting rod can be adjusted according to measurement requirements so as to measure the field scattered radiation dose of the boron neutron capture therapy equipment. According to the scheme of the utility model, the horizontal supporting rod and the measuring assemblies clamped on the horizontal supporting rod can be adjusted to a proper height through the plurality of adjustable brackets, and then each group of measuring assemblies can be accurately adjusted to related positions according to the scales on the horizontal supporting rod according to measurement requirements so as to accurately measure the scattered radiation dose. The leakage radiation level of the boron neutron capture therapy equipment is scientifically controlled, normal tissues are prevented from receiving unnecessary excessive radiation, and the safety of patients is protected.

1. Name of the product in this design: Radiation measuring instrument. 2. Purpose of this design: This product is used for the detection of ionizing radiation. 3. The key design points of this product are: the shape of the product in design 1, the shape of the product in design 2, and the combination of shape and color. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: Design 2 requests color protection.

To provide a radiation measuring technology to easily execute radiation measuring equipment installation work according to the position of an irradiation port in a particle beam therapy system in which the position of the irradiation port changes.SOLUTION: A radiation measuring equipment support device 30 includes: a circular column case 31 forming a circular columnar shape that houses a phantom 40 and radiation measuring equipment 41; a foundation 32 for supporting the circular column case 31 rotatably in a circumferential direction in a state that the cylindrical axis is directed in a horizontal direction, and fixing the circular column case 31 at an arbitrary rotation angle in the circumferential direction; and angle display parts 38 and 39 for displaying the rotation angle.SELECTED DRAWING: Figure 5

The embodiment of the invention provides a radiation intensity detection system and a radiation intensity detection method, and relates to the technical field of nuclear radiation monitoring. The system comprises a radiation measuring instrument and a first upper computer. The radiation measuring instrument comprises a Geiger counter, an electronic switch, a timer and a controller. The Geiger counter performs radiation ray detection on the scene to be detected to obtain a pulse signal; the timer determines the to-be-used duration between the receiving starting moment of each pulse signal and the moment when the pulse signal has a rising edge, and sends a timing ending signal to the electronic switch when each pulse signal has the rising edge; the electronic switch controls the Geiger counter to stop working when receiving the timing ending signal every time, and controls the Geiger counter to start working when a preset duration is reached; the controller calculates the to-be-utilized radiation intensity based on the to-be-utilized duration; and the first upper computer predicts the radiation intensity according to the to-be-utilized radiation intensity by using the prediction model, so that the radiation intensity can be accurately predicted.

This item is a medical X-ray protective garment worn by medical professionals during X-ray examinations. As shown in the reference diagram illustrating the openings, this item has openings on the shoulders that can accommodate a radiation measuring device for the head and neck.

The present invention belongs to the field of solar total radiation measurement devices, and particularly relates to a solar radiation measurement device for a solar water heater. It includes a total radiation meter, an angle calibration mechanism, an angle adjustment mechanism, and a base. The total radiation meter is arranged on the base, and the base is connected to the total radiation meter through the angle adjustment mechanism. One side of the total radiation meter is connected to the angle calibration mechanism. When this design is in use, the device is placed beside the solar water heater, and then the reference plate is moved and placed on the heat collecting tube of the solar water heater. The telescopic rod is adjusted until the bottom surface of the reference plate is in full contact with the heat collecting tube. At this time, since the bottom surface of the reference plate is parallel to the horizontal rod, that is, the bottom surface of the reference plate is parallel to the total radiation meter, the inclination angle of the total radiation meter is exactly the same as the inclination angle of the heat collecting tube. This design has a clever structure, is lightweight, has a low cost, and can quickly adjust the angle of the total radiation meter by simply laying the reference plate flat, with precise adjustment, making the measurement result more accurate.

The invention belongs to the technical field of gamma radioactive radiation measurement, and particularly relates to a gamma radiation measuring instrument and a gamma radiation measuring method. The gamma radiation measuring instrument comprises a primary instrument detection unit and a secondary instrument data processing unit. The primary instrument detection unit comprises an ionization chamber, a GM counting tube, a first high voltage, a second high voltage, a current amplification module, a pulse shaping module, a first differential conversion module, a second differential conversion module and a high voltage program control module. The secondary instrument data processing unit comprises a processor, a voltage frequency converter, a first differential reduction module, a power supply module, a second differential reduction module, a retort counting module and a relay output module. The ionization chamber is used as a main measurement channel, and the GM counting tube is used as an auxiliary measurement channel, so that the technical problem of how to improve the measurement reliability and stability of the radiation measurement instrument is solved.

This invention provides a method for detecting noise contained in measurement results from a radiation measuring device while reducing computational complexity without causing overflow or underflow. [Solution] The noise detection method is a noise detection method performed by a computer, and includes the steps of: acquiring the count value of radiation measured per unit time over a predetermined period; calculating a value obtained by dividing the Poisson probability of one of the count values ​​measured over the predetermined period by the Poisson probability of the average value of the count values ​​over the predetermined period; and determining that the one count value is noise if the calculated value is less than or equal to a predetermined value.

1. The name of the design product: solar radiation measuring instrument. 2. The use of the design product: for the simultaneous measurement of total solar radiation, horizontal diffuse radiation and horizontal direct radiation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: the area shown in part A of the figure is transparent.

1. The name of the design product: personal dose alarm (HAW-30OM Plus). 2. The use of the design product: radiation measuring instrument for personal radiation dose or radiation dose rate alarm of X, Y, neutron and other rays. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention discloses a mixed radiation measurement device and a neutron dose measurement method, and the device comprises a housing and an inner core. The surface of the shell comprises a window; a cadmium filter disc is arranged on the window; the inner core comprises a solid track detection element and a thermoluminescence element group; when the inner core is arranged in the shell, the thermoluminescence element group is positioned below the window, and the solid track detection element is staggered from an area provided with the window; the thermoluminescence element group comprises at least one incidence group thermoluminescence element and at least one reflection group thermoluminescence element. The mixed radiation measurement device provided by the invention gives consideration to measurement of photons and neutrons.

A method for preparing surrogate calibration standards for web gauging, is provided. The method includes providing linearizations for one or more radiometric gauges, each linearization associated with a radiometric gauge and relating the basis weight of real standards, comprising a lithium ion battery (LIB) electrode material, to transmission of the radiation through the LIB electrode material. The method also includes providing one or more surrogate standards comprising an inert material having an effective Z (Zsurrogate) substantially the same as an effective Z (Zreal) of the LIB material in the real standards. The method further includes assigning to each surrogate standard a surrogate basis weight based on a transmission of radiation through the surrogate standard and the linearizations.

The application discloses a paper feeding method with constant linear velocity of a radioactive aerosol activity monitor, and belongs to the technical field of nuclear radiation measuring instruments.The method comprises the following steps: 1, filter paper installation; 2, filter paper feeding; and 3, feeding detection.The motor is controlled by a PLC controller to rotate at a constant linear velocity, so that the filter paper always keeps a constant speed, the stability of the sampling flow in the air path is ensured, and the accuracy of the monitoring result is ensured; meanwhile, the stability of the filter paper shaft damping is ensured, so that the filter paper will not be broken due to the increase of the damping, or the filter paper will not fail to accurately monitor due to the decrease of the damping.

The present application belongs to the technical field of equipment calibration, and particularly relates to an infrared radiation measuring equipment response slope calibration device and method. The infrared radiation measuring equipment comprises a telescope barrel, and the calibration device comprises a cylinder, a lens cover, a diffuse reflection plate and a black body. The cylinder is sleeved on the outer edge of the front end of the telescope barrel, the lens cover covers the aperture of the cylinder, the diffuse reflection plate is attached to the inside of the lens cover and is synchronously turned with the lens cover, and the black body is arranged outside the lens cover and can be connected and detached. The aperture of the opening on the lens cover is smaller than the aperture of the black body. The calibration range of the method meets the requirements of low-end and high-end ranges, the cost is relatively low, and obvious economic benefits are achieved.

This invention belongs to the field of solar energy technology and relates to a solar-powered automatic control curtain suitable for high-altitude areas and its control method. By combining an indoor temperature sensor, a radiation meter, and a processor, the processor automatically controls the curtain to open when the indoor temperature is too low, allowing sunlight to enter and raising the indoor temperature. When the indoor temperature is too high, the processor automatically controls the curtain to close, preventing sunlight from entering and lowering the indoor temperature. Furthermore, this invention can adjust the opening angle of the curtain in real time based on the location, altitude, solar radiation intensity, and comfort level of the people inside, thereby fine-tuning the light transmittance of the curtain. Therefore, this invention fully considers various factors such as the climate conditions, solar radiation intensity, and comfort level of people inside high-altitude areas, and through automatic control, it can simultaneously meet people's needs for automated and comfortable indoor temperature control in high-altitude areas.

The application provides a radiation measuring device, which comprises a fixing base, a radiation signal measuring instrument, a motor, a driving assembly, a driven assembly and a connecting assembly; the fixing base is provided with a sliding groove, the radiation signal measuring instrument is slidably arranged on the sliding groove; the motor is arranged on the fixing base, and the driving assembly is arranged on the output shaft of the motor; the driven assembly is rotatably arranged in the sliding groove, the rotation of the driving assembly can periodically drive the rotation of the driven assembly, and the rotation of the driven assembly is limited in the rotation gap; one end of the connecting assembly is connected with the driven assembly, and the other end of the connecting assembly is connected with the connecting assembly; the rotation of the driven assembly can drive the reciprocating movement of the radiation signal measuring instrument through the connecting assembly. The above-mentioned radiation measuring device can monitor the radiation signal in a wide range.

The utility model discloses a device for on-orbit calibration of an infrared radiation measuring instrument, which belongs to the technical field of thermal metrology and comprises an artificial black body used for generating thermal radiation with set intensity; the cooling pipe type light path system is used for transmitting radiation emitted by the artificial black body; comprising at least one low-temperature refrigeration device used for maintaining a low-temperature environment of the light path system; the off-axis ellipsoidal reflector is used for converging and reflecting radiation to the infrared radiation measuring instrument; the light path switching mechanism is used for changing the pose of the off-axis ellipsoidal reflector and realizing light path switching among different infrared radiation measuring instruments; and the control system can control the radiation intensity of the artificial black body and the action of the light path switching mechanism. By integrating the artificial black body, the cooling pipe type light path system, the off-axis ellipsoid reflector, the light path switching mechanism and the control system, the infrared radiation measuring instrument is accurately calibrated, and the problem that the measurement precision is reduced due to the fact that the on-orbit time is too long is solved.

The utility model provides a long rod gamma radiation dose rate instrument relates to gamma radiation dose detection instrument technical field to solve the problem that data transmission line is easy to disorderly wind together when the existing technology radiation measuring instrument extension pole retracts, this long rod gamma radiation dose rate instrument includes mounting seat, telescopic rod, probe, wire and automatic take -up device, automatic take -up device installs in mounting seat, one end of telescopic rod is connected with mounting seat and the other end is connected with probe, automatic take -up device includes the rotary reel and pivot that set up in mounting seat, the rotary reel can rotate and install on the pivot, and between the rotary reel inboard and pivot is connected with elastic contraction spare, the wire is wound on the rotary reel and its first end extends into telescopic rod and is connected with probe, and elastic contraction spare can make the rotary reel retract with telescopic rod and play wire. This gamma radiation dose rate instrument can guarantee the stable operation of detection instrument, has improved the convenience when using.

1. The name of the design product: hyperspectral radiometer (water profile). 2. The use of the design product: hyperspectral radiometer for measuring solar, sky and sea surface radiation and calculating sea surface remote sensing reflectance, aerosol optical thickness, total column water vapor and ozone. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A measurement method includes determining a measured mass parameter of a workpiece being measured based on radiation intensity of rays that have passed through the workpiece being measured; and correcting the measured mass parameter by using a displacement curve function of the workpiece being measured in a measurement environment, to obtain the corrected mass parameter of the workpiece being measured, where the displacement curve function is used to characterize influence of environmental factors on radiation in the measurement environment.

To provide a radiation detector, a radiation measurement device, and a setting method of the radiation detector that can suppress double counting that detects a single pulse in a duplicate manner by multiple counters in the time of switching counters and acquire high-accuracy data.SOLUTION: A radiation detector 100 which can detect the radiation with continuous exposure includes: a sensor 110 which generates a pulse when a particle of radiation is detected; multiple counters 140a, 140b which are provided so as to be able to count the pulses; a setting retention circuit 150 which retains setting of the off-time that turns off both the multiple counters 140a, 140b; and a control circuit 160 which switches the counter that counts the pulse after the set off-time for a trigger signal.SELECTED DRAWING: Figure 1

The invention relates to the technical field of testing and calibration of radiation measuring instruments, and discloses an in-situ calibration method for a fixed gamma radiation dose rate instrument, which comprises the following steps: acquiring a calibration factor and a cosmic ray response value of a reference radiation dose rate instrument; at the installation position of the fixed gamma radiation dose rate instrument to be detected, the detection parts of the reference radiation dose rate instrument and the fixed gamma radiation dose rate instrument to be detected are arranged at the same horizontal height; the method comprises the following steps: respectively measuring a group of radioactive sources with different radiation intensities by using a reference radiation dose rate instrument and a fixed gamma radiation dose rate instrument to be measured under the same environmental condition to obtain two groups of measurement data sets; and according to the measurement data set and the parameters of the reference radiation dose rate instrument, calculating a calibration factor and a cosmic ray response value of the fixed gamma radiation dose rate instrument to be measured. According to the scheme, the reliability of the calibration factor and the cosmic ray response value obtained through calibration can be ensured while the operation process and the arrangement mode are simplified and the calibration cost is reduced.

1. Name of the product in this design: Radiation measuring instrument. 2. Purpose of this design: This product is used to measure radioactive contamination on small personal items or the surface of the hands. 3. The key design points of this product are: the shape of the product in design 1, the shape of the product in design 2, and the combination of shape and color. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: Design 2 requests color protection.

The present application discloses a probe-type seafood radiation measuring instrument, which relates to the field of food radiation measurement. The probe-type seafood radiation measuring instrument includes a measuring probe, a signal processing system and a display module; wherein the measuring probe includes a stainless steel needle tip, a stainless steel needle tube, a cover, a scintillating optical fiber, a spring and a SiPM chip; when the measuring probe is inserted into the seafood to be measured, the radiation emitted from the inside of the seafood to be measured will pass through the stainless steel shell and enter the scintillating optical fiber, causing the scintillating optical fiber to generate a light signal; the light signal is transmitted to the SiPM chip inside the scintillating optical fiber; the SiPM chip converts the light signal into a current signal and transmits it to the signal processing system; the signal processing system amplifies, filters, calculates and analyzes the current signal to obtain the corresponding radiation dose, and displays it through the display module. The probe-type seafood radiation measuring instrument provided by the present application can measure the radiation dose deeply inside the seafood and quickly give the accurate radiation dose in the seafood food.