17 results about "Thermoluminescence" patented technology

The invention discloses a radiation dose detection method and system for an irradiation cross-linked area, and belongs to the technical field of radiation dose detection.The method specifically comprises the steps that coordinates of a to-be-detected core point and coordinates of related points around the to-be-detected core point are input, and transient fluorescence spectrums, thermoluminescence signals and conductivity change data of all the points in an irradiation window are synchronously collected; constructing a physical configuration association model based on association point distribution, and forming a scattered field association data network; when the residual error between the actually measured data of the core point and the model predicted value exceeds a dynamic threshold value, activating the reverse solving process of the scattered field, reversely reconstructing a theoretical data sequence of the core point by using associated node data, and replacing interfered original data; and finally, inputting the reconstructed sequence into a dose calculation model, and outputting a corrected radiation dose value. According to the invention, measurement errors caused by local material non-uniformity and instantaneous interference can be effectively reduced, and the reliability of dose detection is improved.

The invention provides a controllable preparation method for synthesizing a rare earth doped phosphate thermoluminescent material through a high-temperature solid-phase method. The controllable preparation method mainly comprises the steps of raw material selection, temperature selection, heating time regulation and control, rare earth element selection, concentration regulation and control and the like. Preferably, in the step of controllable preparation of the rare earth doped phosphate (ABPO4: Re) thermoluminescent material, a method for controllable preparation by illuminating a high-temperature solid-phase synthesis regulation mechanism of the rare earth doped phosphate thermoluminescent material is further included, and a radiation dose linear response curve of the material is obtained by researching the thermoluminescent characteristics of the material and then is applied to radiation dose detection.

The utility model relates to the technical field of measuring instrument storage, in particular to a portable thermoluminescence dosage measuring instrument. The measuring instrument comprises an outer box and a measuring instrument body, a sliding drawing mechanism is arranged outside the outer box, the sliding drawing mechanism comprises a sliding cover arranged on one side of the outer box in a sliding mode, and the sliding cover and the measuring instrument body are fixedly arranged. According to the device, rapid taking and placing of the measuring instrument body are achieved through the sliding drawing mechanism, the sliding cover and the measuring instrument body are fixedly connected through the first fixing bolt, and by means of sliding fit of a sliding block and a sliding groove and detachable connection of a buckle, the measuring instrument body can be rapidly taken and placed. A user only needs to open the buckle and pull the sliding cover to pull the whole measuring instrument body out of the outer box, the tedious step that a traditional instrument needs to be separated from an anti-seismic structure is omitted, the operation process is greatly simplified, meanwhile, the sliding drawing mechanism has the limiting function, the relative stability of the measuring instrument body and the outer box in the carrying process is ensured, and the measuring instrument is convenient to carry. And the shaking risk is avoided.

The invention discloses a fire detection method and system applying an infrared flame detector, and relates to the technical field of intelligent sensors. The detection method comprises the following steps: deploying a multi-mode collaborative sensing node network in a target area, and transmitting multi-source sensing data in real time; starting a compensation mode in an over-limit area of the carbon dioxide concentration, and judging whether an initial alarm signal is generated or not; when an initial alarm signal is received, synchronously acquiring multi-source sensing data in the same acquisition period, and triggering a secondary judgment mechanism; the technical key points are as follows: the operation of the scheme not only ensures that the fire extinguishing system is not mistakenly triggered due to CO2 thermoluminescence under a complex thermal working condition so as to ensure the continuity of production, but also greatly retains the response capability to real burst flames under the condition of not sacrificing the safety, so that the whole scheme can adapt to extreme working scenes.

A beryllium aluminate component may include a beryllium aluminate ceramic comprising 90 wt% or more beryllium aluminate. The ceramic may be characterized by one or more of: a thermal conductivity from 17 W / m·K to 175 W / m·K at room temperature; a bulk resistivity greater than 1 x 1015 ohm-cm at room temperature and / or greater than 1 x 109 ohm-cm at 700 ºC and / or greater than 1 x 1010 ohm-cm at 600 ºC; a coefficient of thermal expansion from 7.4 to 9.0 µm / (m·K) at room temperature; a near bioequivalence to human body tissue (Zeff) from 7.2 to 11.3; and a density of from 3.4 to 3.9 g / cc. The beryllium aluminate components may be used in pedestal assemblies, wafer pedestals, wafer chucks, integral resistance heaters, and / or components thereof, as well as for optically stimulated luminescence, thermoluminescence, radioluminescence, or dosimetry systems thereof. Processes for preparing the beryllium aluminate ceramic components are also disclosed.

The utility model relates to the technical field of applicator in cervical cancer radiotherapy, disclose a kind of verification cervical cancer after-loading radiotherapy real dose applicator, including applicator body and thermoluminescence detector.Applicator body includes guide tube and radioactive source support block, the one end of guide tube is used to connect with after-loading therapeutic instrument, radioactive source support block is fixedly connected with the other end of guide tube, and radioactive source support block is internally provided with the radioactive source cavity matched with the other end of guide tube, and installation groove is provided on the outer surface of radioactive source support block, and thermoluminescence detector is detachably installed in installation groove.It can improve the low problem of dose verification accuracy of conventional applicator in prior art.

The application provides a kind of porous crystalline material and its preparation method and application as variable temperature luminescent material, belong to metal organic framework material technical field.The molecular formula is: C 25 H 21 NO8PLn, wherein Ln is europium ion or terbium ion.The material contains dynamic molecular rotor module ligand H3TPO, and the energy level of the lowest excited singlet state (S1) and triplet state (T1) can be elastically adjusted with temperature change, and this characteristic makes isomorphic materials Eu-PO and Tb-PO exhibit rare and completely opposite thermoluminescence behavior.The application not only provides a new idea for regulating the energy level of dynamic antenna to construct artificial intelligent luminescent material, but also opens up a new direction for developing high-performance X-ray scintillators based on Ln-MOFs.

The utility model provides a mining intrinsic safety type wireless thermoluminescence light-operated sensor, which belongs to the technical field of mine safety monitoring, and comprises an installation mechanism, an intrinsic safety type wireless thermoluminescence light-operated sensor, an intrinsic safety type wireless thermoluminescence light-operated sensor, an intrinsic safety type wireless thermoluminescence light-operated sensor, and an intrinsic safety type wireless thermoluminescence light-operated sensor, the detection mechanism is arranged on the mounting mechanism and used for collecting infrared radiation signals in the environment, converting the infrared radiation signals into electric signals and outputting the electric signals; the control assembly comprises a sensor and a displayer, the sensor is electrically connected with the detection mechanism, and the displayer is arranged on the surface of the control assembly and used for displaying detection data. According to the utility model, the high-sensitivity pyroelectric detection mechanism, the modularized detachable connection structure and the low-power OLED display and wireless communication module are arranged, so that the detection precision, the environmental adaptability and the remote monitoring capability of the sensor are improved; therefore, the technical problems of single function, poor stability, low intelligent degree and the like of a traditional mining thermoluminescence light-operated sensor are effectively solved.

The utility model discloses a thermoluminescence detection system, which comprises a thermoluminescence detector main body, a door plate and an auxiliary assembly, the door plate is rotatably arranged on the front surface of the thermoluminescence detector main body, the auxiliary assembly is arranged on the front surface of the thermoluminescence detector main body, and the auxiliary assembly comprises a fixed shell, a clamping piece, a locking assembly and a detection assembly, the fixing shell is fixedly connected to the front face of the thermoluminescence detector body, the clamping piece is fixedly connected to the front face of the door plate, and the locking assembly is arranged in the fixing shell and used for locking the clamping piece. According to the thermoluminescence detector disclosed by the utility model, the thermoluminescence detector main body, the door plate and the auxiliary assembly are matched for use, the auxiliary assembly comprises the fixed shell, the clamping piece, the locking assembly and the detection assembly, under the matched use of the clamping piece and the locking assembly, the closing stability of the door plate can be ensured, and under the action of the clamping piece and the detection assembly, the safety of the door plate is ensured. And whether the door plate is closed or opened can be detected, so that the practical performance is improved.

The invention belongs to the technical field of pipeline displacement measurement, and particularly relates to a pipeline displacement real-time measurement system and method based on three-dimensional vision. Comprising a reference plate, the reference plate is connected with a base, the base is fixed to a measured pipeline, a thermoluminescence mark point is arranged on the surface of the reference plate, when the reference plate is installed on the measured pipeline, heat of the measured pipeline is transmitted to the mark point on the reference plate through a metal screw, the mark point emits radiation light, and a binocular camera is fixed to a building through a support. The binocular camera obtains a reference plate mark point image, image data are transmitted to the PoE switch through a POE signal line, and the PoE switch transmits the image data to the upper computer. The method has the advantage that displacement in three directions can be measured at the same time. A mark point is arranged through the heat-conducting luminescent material, heat of the pipeline is transmitted to the mark point through the metal screw to enable the mark point to emit light, and the binocular camera captures light of the mark point.

1. The name of the design product: thermoluminescence irradiation device. 2. The use of the design product: the design product is used for thermoluminescence dosimeter irradiation measuring instrument. 3. The design points of the design product: the combination of shape and color. 4. The picture or photo that best indicates the design points: perspective view. 5. The design for which protection is sought includes color. 6. Other circumstances that need to be explained: the material of the design product is mainly aluminum plate, and the surface is subjected to anodic oxidation and sand blasting treatment.

The invention provides a thermoluminescence three-dimensional spectrum measuring device and method, which can eliminate the interference of low-temperature peaks, and the device comprises: a heating system, which comprises a sample disc for holding a thermoluminescence detector sample to be measured, a heater for heating the sample, and a temperature sensor for measuring the temperature of the sample disc; collecting a light path; a grating spectrometer; the signal processing device is used for processing the spectral signal; and a heating control device that controls the heating system so as to be able to perform stage temperature-rising heating on the sample, including a first stage of a first length of time and a second stage of a second length of time, the first stage including: a first temperature-rising process in which the sample is heated to a first temperature slightly higher than the low-temperature peak temperature of the sample, and a second temperature-rising process in which the sample is heated to a second temperature slightly higher than the low-temperature peak temperature of the sample; and a first constant temperature process of maintaining the sample at the first temperature, the second stage including a second temperature rise process of heating the sample to a second temperature slightly higher than the high temperature peak temperature of the sample, and a second constant temperature process of maintaining the sample at the second temperature.

This invention discloses a temperature calibration device for a thermoluminescence measurement system, belonging to the field of thermoluminescence measurement technology. The device includes a sample assembly connected to a photomultiplier tube assembly, which is linked to an intelligent control module. The intelligent control module is connected to a heating device, which is in turn connected to the sample assembly. The intelligent control module includes a temperature detection and heating control circuit and a signal processing and intelligent control circuit. It calculates the cumulative CPS value and average CPS value of each thermoluminescent sheet in the sample assembly based on pulse signals, thereby calculating the relative error of each thermoluminescent sheet. Based on the relative error, it generates a heating control signal and outputs it to the heating device to adjust the heating temperature and perform different temperature compensations on each thermoluminescent sheet, ensuring the overall sample assembly is always in optimal operating condition. This invention improves the reliability of the system measurement by adding a temperature calibration function.

The application discloses a kind of boron neutron capture therapy beam gamma dose measurement methods, it is related to radiotherapy technical field, first thermoluminescence dosimeter is standardized annealing pretreatment, and screening, numbering;Positioning and calibration are carried out to water equivalent phantom fixed on treatment bed, complete reference positioning;Thermoluminescence dosimeter is loaded in water equivalent phantom and is irradiated again;After irradiation, take out phantom, establish the one-to-one correspondence between unique number and its three-dimensional space position in phantom, and record;First measurement and second measurement are carried out to all dosimeters in turn, calculate thermoluminescence net gamma count, obtain absorbed dose value;Thermoluminescence dosimeter is annealed again, for subsequent circulation use conveniently.The application in the application multiple thermoluminescence dosimeters are irradiated simultaneously, shorten time;Two independent measurements, deduct interference signal;Complex operation process standardization, programming, improve measurement repeatability and efficiency, convenient, novel, accurate.

An automated thermoluminescent personal dosimetry measurement system and method includes an automatic tablet loading module, an automatic transfer module, an automatic disassembly and assembly module, an automatic annealing module, and an automatic analysis module. The automatic tablet loading module loads dosimetry tablets into a magazine; the dosimetry tablets contain thermoluminescent crystals. The automatic transfer module is used for magazine transfer; the automatic disassembly and assembly module is used for disassembling and assembling the thermoluminescent crystals; the automatic annealing module is used for annealing the thermoluminescent crystals; and the automatic analysis module is used for sorting the annealed thermoluminescent crystals. This invention can automatically disassemble old crystals in the dosimeter while simultaneously loading new crystals. The entire process is fully automated, greatly improving work efficiency and reducing labor costs.

This invention discloses a method and system for detecting radiation dose in irradiated cross-linked regions, belonging to the field of radiation dose detection technology. Specifically, it includes: inputting the coordinates of the core point to be measured and the coordinates of its surrounding associated points, and simultaneously acquiring transient fluorescence spectra, thermoluminescence signals, and conductivity variation data of each point within the irradiation window; constructing a physical configuration association model based on the distribution of associated points to form a scattered field association data network; when the residual between the measured data of the core point and the model prediction exceeds a dynamic threshold, activating the inverse solution process of the scattered field, using the associated node data to reconstruct the theoretical data sequence of the core point, replacing the disturbed original data; finally, inputting the reconstructed sequence into the dose calculation model, and outputting the corrected radiation dose value. This invention can effectively reduce measurement errors caused by local material inhomogeneity and transient interference, improving the reliability of dose detection.

The invention discloses a multifunctional thermoluminescence heating plate. Reliable positioning and thermal contact can be provided for samples in various shapes on the same heating plate. Comprising a heating base, a heating plate body groove is formed in the heating base, and the heating plate body groove comprises a wafer fixing part used for limiting a wafer-shaped sample, a square fixing part used for limiting a square-shaped sample and a cylindrical fixing part used for limiting a glass cylindrical sample; the wafer fixing part comprises a circular base groove, an upper arc positioning part and a lower arc positioning part, wherein the upper arc positioning part and the lower arc positioning part are arranged on the two sides of the circular base groove respectively and symmetrically distributed relative to the two vertical diameters of the circular base groove. The end points of the two sides of the upper arc positioning part are each provided with a set of upper right-angle positioning part. A group of lower right-angle positioning parts is arranged on each of the two sides of the lower arc positioning part; the square fixing part comprises an upper right-angle positioning part and a lower right-angle positioning part; a left limiting clamping part and a right limiting clamping part are arranged between the upper arc positioning part and the lower arc positioning part; the cylindrical fixing part comprises a left limiting clamping part and a right limiting clamping part.