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Airborne pod radiation environment monitoring device

A technology of environmental monitoring and pods, applied in the field of monitoring, can solve the problems of energy response and the upper limit of the measurement range, the measurement cannot be well compatible, and it is difficult to achieve the dose rate, etc., to achieve good linearity, high resolution and measurement wide range of effects

Pending Publication Date: 2020-08-28
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND +1
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Problems solved by technology

[0003] 1. The existing pod dose rate measurement generally adopts the method of NaI probe + GM tube probe. The energy response of this method can only be measured to 50keV ~ 3MeV. For the low-energy rays of 30keV, it cannot be detected or the error is huge. , and the upper limit of the dose is also difficult to reach the dose rate of 10Gy / h
[0004] 2. The existing pod-type dose rate measurement is generally realized by NaI+GM dual probes, but the measurement cannot be well compatible with the energy response and the upper limit of the measurement range

Method used

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Embodiment 1

[0028] see figure 1 , Embodiment 1: In the embodiment of the present invention, an airborne pod radiation environment monitoring device is composed of a bromide probe, a NaI probe, a plastic scintillator, a silicon PIN, a GPS signal acquisition unit, an altimeter, a main controller, a wireless It consists of transparent transmission, ground station equipment, energy spectrum analysis and processing, and flight platform control software. The system consists of figure 1 shown.

[0029] The aerial radiation monitoring system is designed to be composed of radiation detector, signal acquisition module, GPS positioning module (using airborne equipment), image acquisition module (using airborne equipment), and data communication module (using airborne equipment). The radiation detector uses large-volume sodium iodide crystal detectors, plastic scintillator detectors, and silicon PIN detectors for combined measurement, which can realize abnormal dose rate monitoring, radioactive sou...

Embodiment 2

[0079] Embodiment 2: On the basis of Embodiment 1, the structural diagram of the airborne pod radiation environment monitoring device is as follows figure 2 As shown, the frame structure is adopted, and high-strength aviation aluminum is used as the frame and outer plate of the main box to achieve light weight and high-strength outer frame. In the schematic diagram, the number 1 is the NaI probe; the number 2 is the transverse temperature control; the number 3 is the bromide probe; the number 4 is the plastic scintillator; the number 5 is the silicon PIN detector and the main control board; Connect the communication interface, GPS inertial navigation data, altimeter data, and power supply are provided by the drone. The positions of No. 1, No. 2 and No. 4 need to be on the same horizontal plane to ensure the consistency of radiation measurement data. Only then can consistent measurement be achieved in the mixed spectrum identification of NaI and lanthanum bromide. The consta...

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Abstract

The invention discloses an airborne pod radiation environment monitoring device comprising a main control board and an industrial personal computer; the main control board is connected with the industrial personal computer through a wireless data transparent transmission module; the main control board is connected with a lanthanum bromide crystal through a digital multi-channel board and a photomultiplier; the main control board is connected with a NaI probe through the digital multi-channel board and the photomultiplier PMT; the main control board is connected with an integral acquisition board through the digital multi-channel board and the photomultiplier PMT; the main control board is connected with a plastic scintillator through the digital multi-channel board and the photomultiplierPMT, the main control board is also connected with a silicon PIN detector, and the main control board is also connected with an altimeter and a positioning module. The device has the beneficial effects that: 1, the measurement range of the pod type dose rate is wider, and the energy response linearity is good; and 2, nuclide measurement of the lanthanum bromide probe and the NaI probe realizes combination of high resolution and high detection efficiency.

Description

technical field [0001] The invention relates to the technical field of monitoring, in particular to an airborne pod radiation environment monitoring device. Background technique [0002] The R&D and application of UAV aerial radiation detection technology is still in the exploratory stage in China. Airborne pod radiation environment monitoring devices usually use fixed-wing aircraft or large helicopters equipped with large-volume NaI(Tl) crystals or high-resolution High-purity germanium is used as a radiation detector. At present, there are mainly PICO company in the United States, RMD in France, and domestic Chengdu University of Technology, Hebei Aerial Survey and Remote Sensing Center, and China Land and Resources Aerial Geophysical Prospecting and Remote Sensing Center have carried out relevant scientific research work. [0003] 1. The existing pod dose rate measurement generally adopts the method of NaI probe + GM tube probe. The energy response of this method can only...

Claims

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Application Information

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IPC IPC(8): G01T1/02
CPCG01T1/023
Inventor 刘思平李晨张志勇杨奎
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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