M1401K-3 is the smallest and the most lightweight instrument in the world, which is capable to operate simultaneously as an alarming device, search instrument, survey meter, spectrometer and identifier.
The instrument can be used both indoors and outdoors and is intended for everyday and/or emergency use by officers of radiological and isotope laboratories, specialists of different industries, agriculture, transport, medicine, customs and border services, firefighters, military, police and other first responding agencies.
Specifications
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Detector
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CsI(Tl), GM
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Dose rate indication range
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0.01 μSv/h to 200 mSv/h
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Dose rate measurement range
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0.1 μSv/h to 100 mSv/h
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Dose rate measurement accuracy
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± (15 + 0.0015 / Ḣ)
(where Ḣ is the measured dose rate value in mSv/h)
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Dose rate measurement energy range
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15 keV to 15 MeV
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Spectroscopy energy range
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25 keV to 3 MeV
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Full width-half maximum (FWHM) for 137Cs
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≤ 9 %
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Gamma radiation scintillation spectra acquisition channels
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1024
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Gamma radiation sensitivity
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200 cps per µSv/h (137Cs)
2000 cps per µSv/h (241Am)
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α-radiation sensitivity (239Pu)
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≥ 0.5 counts·cm2
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β-radiation sensitivity (90Sr+90Y)
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≥ 3.5 counts·cm2
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α-radiation flux density measurement range
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15 to 105 min-1·cm-2
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α-radiation flux density accuracy (239Pu)
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± (20 + 450 / φ) %
(where φ is the measured α-radiation flux density, min-1·cm-2)
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β-radiation flux density measurement range
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6 to 105 min-1·cm-2
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β-radiation flux density accuracy (90Sr+90Y)
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± (20 + 60 / φ) %
(where φ is the measured β-radiation flux density, min-1·cm-2)
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137Cs activity measurement range
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102 to 105 Bq/kg (Bq/l)
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Alarms
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visual, audible, external vibration
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Memory
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10000 history events
1000 scintillation spectra
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PC communication
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USB
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Power supply
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2 AA alkaline or NiMH batteries
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Battery lifetime
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300 hours*
*When the average dose rate is not more than 0.3 µSv/h; backlight and alarms are activated for not more than 5 minutes per 24 hours
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Ingress protection
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IP65
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Drop test
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0.7 m
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Dimensions
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262 × 60 × 65 mm
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Weight
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≤ 820 g
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Operating temperature
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–20 °С to 50 °С
*the instrument remains operational in temperatures from –30 °C to –20 °C, but only in the Search γ mode
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Atmospheric pressure
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84 to 106.7 kPa
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Humidity
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up to 95 % at 35 °С
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Mean service lifetime
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≥ 10 years
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Features
The instrument can be used both indoors and outdoors and is intended for everyday and/or emergency use by officers of radiological and isotope laboratories, specialists of different industries, agriculture, transport, medicine, customs and border services, firefighters, military, police and other first responding agencies.
Specifications
Characteristics Detector — CsI(Tl), GM DER indication range — from 0.01 μSv/h to 200 mSv/h DER measurement range — 0.1 μSv/h Р100 mSv/h (10 μR/h 10 R/h) DER measurement accuracy — ±(15 + 0.0015 / Ḣ) %; where Ḣ Рmeasured dose equivalent rate value in mSv/h (in the range from 0.1 μSv/h to 100 mSv/h) Energy range — within the range of energies from 0.015 to 0.045 MeV ± 40 %; within the range of energies from 0.045 to 15.0 MeV ± 30 % of β- radiation flux 0.15 3.5 MeV Drop test on concrete floor — 0.7 m.
