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SHIKOKU ELECTRIC POWER CO.,INC.

NaI survey meterNaI survey meter

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NaI survey meter

  • Usage
    Enables the measurement of γ-rays at an environmental level (approximately 0.1 μSv/h) to medium level (30μSv/h) to read 1-cm dose equivalent rates (Sv/h), and incorporates a scaling function to count energy at 50 keV or over.
  • Specifications
    (1)Types of rays measured γ-rays
    (2)Detector NaI (Tl) scintillation detector
    (3)Measuring range Dose rate: 0.1 to 30 μSv/h
    Count: 0 to 1.999×106 counts
    (4)Measuring energy 50 keV or over
    (5)Energy characteristics ±15% max. for Cs-137
    (6)Display Analog display: Five selectable levels, 0.3, 1, 3, 10, 30 μSv/h
    Digital display: Dose rate from 0.00 to 30.0 μSv/h
    Count: 0 to 1.999×106 counts
    (7)Display precision Analog display: Dose rate ± 5% max. (FS)
    Count: ±3% max. (FS)
    Digital display: Dose tolerance of ±15% max. for indicated values
    Count: Tolerance of ±3 max. for indicated values
    (8)Time constant 3 seconds, 10 seconds, and 30 seconds
    (9)Weight Approx. 1.5kg (ease of carriage)
    (10)Radiation source calibration Calculation of iodine conversion constants for 20-L polyethylene tanks, 2-L Marinelli containers, and charcoal packs
    (11)Reading Enables the direct reading of indicated values with energy compensation
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