×

METHOD FOR THE RADIATION MONITORING OF MOVING OBJECTS AND A RADIATION PORTAL MONITOR FOR CARRYING OUT SAID METHOD

  • US 20110261650A1
  • Filed: 12/04/2009
  • Published: 10/27/2011
  • Est. Priority Date: 12/09/2008
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for the radiation monitoring of moving objects, including:

  • a registration of background gamma quanta by at least two gamma-ray detectors,counting the background gamma quanta recorded over a given time interval,detecting the test object in the control zone,a registration of gamma quanta by at least two gamma-ray detectors when controlled object is located in the control zone,counting of gamma quanta recorded over a given time interval when controlled object is located in the control zone,a comparison of number of gamma quanta recorded over the given time interval when controlled object is located in the control zone with the number of background gamma quanta recorded over the given time interval, andproviding a decision about the presence of the radioactive material in the controlled object at the excess of number of gamma quanta recorded over the given time interval when controlled object is located in the control zone over the number of background gamma quanta registered during the given time interval,characterised in thatafter the detection of the test object in the control zone a moment when the controlled object arrives at a given distance RP from the gamma-ray detectors is determined,a moment when the controlled object moves away from the gamma-ray detectors to a given distance RU is determined anda registration of gamma quanta when controlled object is located in the control zone is carried out from the moment when the controlled object arrives at the given distance RP from the gamma radiation detectors to the moment when the controlled object moves away from the gamma radiation detectors to the given distance RU, where the distance RP and RU is set according to the formula RP=(0.8−

    1.2)·

    (H+D) and RU (0.8−

    1.2)·

    (H+D), where H—

    the height of the horizontal plane which is a symmetry plane of gamma-ray detectors location;

    D—

    the half of the distance between the two gamma-ray detectors installed at the same height.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×