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SYSTEM FOR ANALYZING/INSPECTING AIRBORNE RADIOACTIVE PARTICLES SAMPLED IN A DRAFT FLUE

  • US 20100030489A1
  • Filed: 10/28/2008
  • Published: 02/04/2010
  • Est. Priority Date: 08/01/2008
  • Status: Abandoned Application
First Claim
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1. A system for analyzing/inspecting airborne radioactive particles sampled in a draft flue, comprising:

  • a pre-detector, for detecting and inspecting airborne radioactivity of the draft flue so as to output a detection value relating to the detection;

    an air intake tube, configured with an inlet for collecting airborne particles from a discharge area;

    a capture vessel, connected with the air intake tube for receiving the collected particles therefrom to be used as a sample;

    a sample outlet, connected to the capture vessel for discharging the excess portion of the sample along with the portion of the sample whichever is being inspected back to the draft flue;

    a detector, for inspecting and measuring a radiation dose relating to the airborne radioactivity in the capture vessel so as to obtain an analysis relating to its spectrum distribution and radioactivity intensity while outputting numerical values of the analysis accord to the inspection;

    a flow meter, for measuring an airborne flow rate while outputting the same;

    a hand-held electric device, for receiving values outputted from the pre-detector, the detector and the flow meter while feeding the received values to a software programmed in the hand-held electric device for performing a calculation therewith and thus outputting a control signal according to the calculation;

    a software, adapted for analyzing information obtained from the pre-detector in a manner that the evaluation is made for determine whether the radioactivity of the airborne particles is raising or dropping according to the detection value outputted from the pre-detector while basing upon the evaluation to determine a sampling time for obtaining the sample of the airborne particles in the draft flue; and

    using the detection value outputted from the pre-detector to perform a calculation for obtaining values relating to the peak amount of airborne particles being discharged and the high time when the airborne particles is being discharged; and

    by combining with data relating to the total amount of the airborne particles being discharged, another evaluation is performed for obtaining values relating to the total radioactivity of the airborne particle being discharged, the average radioactivity during the high time when the airborne particles is being discharged and the radioactivity at the time when airborne particles being discharged reaches its peak.a blower motor, for receiving the control signal from the hand-held electric device to be used for controlling the ON/OFF of the same in a manner the collected airborne particles used as sample is fed back to an intake area of the draft flue.

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