Rotary radioactive iodine monitoring system and method

A radioactive iodine and monitoring system technology, applied in radiation measurement, X-ray energy spectrum distribution measurement, X/γ/cosmic radiation measurement, etc., can solve problems such as poor measurement accuracy, improve measurement accuracy, and reduce measurement stability. poor effect

Inactive Publication Date: 2019-12-31
MIANYANG WEIBO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a rotary radioactive iodine monitoring system to s

Method used

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  • Rotary radioactive iodine monitoring system and method

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Effect test

Embodiment 1

[0038] like figure 1 As shown, a rotary radioactive iodine monitoring system includes a shielding body 1, an iodine box 2, a NaI detector 5, a multi-channel analyzer 15 and an industrial computer 16, and the NaI detector 5 is provided with a measurement signal lead 14, , the measurement signal lead 14 passes through the shielding body 1, the NaI detector 5 is connected to the multi-channel analyzer 15, and the multi-channel analyzer 15 is connected to the NaI detector 5 through the measurement signal lead 14, and the industrial computer 16 is connected with the multi-channel analyzer 15, the shielding body 1 is provided with a rotating mechanism, and the iodine box 2 is fixed on the rotating mechanism. The shaft is connected, and the upper end surface of the turntable 3 is provided with a fixing structure for fixing the iodine box 2. The fixing structure can be a metal strip with certain elasticity. One end of the metal strip is hinged on the top of the turntable 3, and the ot...

Embodiment 2

[0042] like figure 1 As shown, this embodiment is based on Embodiment 1, the air intake pipe 6 is provided with a dust filter 8; the air intake pipe 6 is provided with a heater 9 and a temperature sensor 10 at the rear end of the dust filter 8 in sequence; The air inlet pipe 6 and the air outlet pipe 7 are provided with a differential pressure sensor 13 and a stop valve, and the air outlet pipe 7 is provided with a flow meter 11; an alarm device is also included, and the alarm device is connected in communication with the analysis equipment.

[0043] A monitoring method based on a rotary radioactive iodine monitoring system, comprising the following steps:

[0044] 1), iodine box scale: the iodine box 2 containing the Ba-133 body source of known activity is fixed on the rotating mechanism, the device is turned on, and the automatic scale interface is entered, and the iodine box 2 is rotated at a constant speed in a certain direction on the rotating mechanism, The NaI detector...

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Abstract

The present invention discloses a rotary radioactive iodine monitoring system and method. The monitoring system comprises a shielding body, an iodine box, and a NaI detector; the NaI detector is connected with an analysis device; a rotating mechanism is arranged in the shielding body; the iodine box is fixed on the rotating mechanism; the NaI detector is arranged in the shielding body; the iodinebox is in communication with an air inlet pipe and an air outlet pipe; and a sampling pump is arranged on the air outlet pipe. According to the system and method provided by the present invention, theproblem of poor measurement accuracy caused by the existing radioactive iodine monitoring technology is solved.

Description

technical field [0001] The invention relates to the technical field of radioactive iodine monitoring, in particular to a rotary radioactive iodine monitoring system and method. Background technique [0002] The detection of different concentrations of radioactive iodine in the air is one of the important parameters of environmental monitoring. The detection of radioactive iodine in the air mainly includes online monitoring and sampling detection. Sampling detection is sent for inspection after sampling by iodine box, with high accuracy, but the detection period is long; online monitoring is to directly use NaI (detector to collect data, NaI) after sampling with iodine box. The detector is connected to the analysis equipment for on-site analysis, and the radioactive iodine concentration in the air is monitored in real time. [0003] At present, in the online monitoring technology, the iodine box is statically placed in the shielding body, and the measurement stability is poo...

Claims

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Application Information

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IPC IPC(8): G01T1/36G01T1/202G01T1/00G01T7/12G01T7/08G01T7/02G01T7/04
CPCG01T1/003G01T1/202G01T1/362G01T7/02G01T7/04G01T7/08G01T7/12
Inventor 李进任永甘霖张天佑韩强张锐
Owner MIANYANG WEIBO ELECTRONICS
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