hotline:020-29026320 |13903018415
WuhuFN-204 Low Background α/β Radioactivity Measuring Instrument
Category:
Product Description
Purpose
FN Series （ 2-8 Road) Low Background α/β The detector is a precision instrument for measuring low levels α 、 β radioactive intensity. It can be used for the total measurement of water, soil, building materials, ores, aerosols, food, etc. α 、total β radioactive measurement 。 Suitable for low-level radiation intensity measurement in radiation protection, environmental protection departments, medical, biological, agricultural, scientific research institutes and universities. α/β This instrument is a series of products, with 4 types and specifications: FN -202、 FN -202、 FN -204、 FN -208。 The instrument meets JJG2200-2024 the calibration requirements of the total α and total β measurement instrument for gas flow proportional counters.
Performance characteristics
■ Low background count ， High particle detection efficiency;
■ Thin-window gas flow proportional counter tube as detector, shielding counter tube and measuring counter tube
perform anti-coincidence to reduce the interference of ambient radioactivity on the measurement;
■ To 24 C low energy β radiation detection efficiency ≥40% ; superior to semiconductor and scintillator detectors
similar detectors.
■ The mass thickness of the gas flow proportional counter tube window is approximately 2μg/cm -2 ，the area of the measurement window
Ø 55 mm ，sample area Ø55mm 。
■ With PC application software, high voltage, threshold and other parameters can be PC end settings. Simple
operation interface, each channel can work independently, independent calculation; can directly obtain the
measured sample's radioactive specific activity Bq/L or Bq/Kg etc.
Main performance indicators
Probe Measure Device
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Thin-window gas flow proportional counter tube (effective area 23.8 cm 2 )
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Background count
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α ≤ 0.008cm -2 · min -2 ； β ≤ 0.05 cm -2 · min -2 。
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Detection efficiency
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α Source: 220 Po≥65% ； β Source: 90Sr-90 Y≥ 65% ，24 C≥40% 。
|
Repeatability
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220 Po α ≤ 2.5% ； 90Sr-90 Y ≤ 2.0% ；
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Channel ratio
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α To β Road ≤ 20% （ 220 Po Source ) ； β To α Road ≤ 3 % （ 90Sr-90 Y Source )
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Electric Source
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AC 220V 50Hz |
Power Consumption
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≤250 VA |
Ring Environment Temperature 0-45
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° C C
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Phase To Wet 0-45
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≤90% |
online message
Telephone:13903018415(Manager Wang)
Business: 020-29026320
E-mail:wangxueli@haiyoukj.com
Address: Rooms 1506-1507, Building 4, Chuangyue Times Cultural and Creative Park, No. 61 Xiannan Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province
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