Gamma-only model without a neutron detector.
The PM1401K-3 series of radiation monitors compromises a wide range of all-in-one devices for radiation detection, dose rate, contamination measurements, spectrometry, and radionuclide identification.
The PM1401K-3M model is a gamma-only radiation monitor without a neutron detector. The instrument is designed for quick and reliable measurement of gamma dose rate, detection of alpha, beta, and gamma sources, measurement of alpha and beta radiation flux density, acquisition of gamma spectra, identification of radioisotopes, and measurement of food/soil contamination with 137Cs.
Features
- Storage of up to 10000 events and 1000 spectra
- Audible, visual, and external vibration alarm
- Categorization of identified radionuclides
- Shock and water-resistant IP65 case
- Adjustable radionuclide libraries
- USB communication with PC
- Built-in GPS module
Applications
- Customs and border control
- HAZMAT and CBRNe teams
- Emergency services
- Police and security
- Industrial facilities
- First responders
Operation principle
The PM1401K-3M continuously measures ambient dose equivalent rate Ḣ*(10) of photon radiation in the wide energy range, detects alpha, beta, and gamma radiation, measures alpha and beta radiation flux density, operates as a gamma radiation spectrometer and radioisotope identifier, and measures food/soil contamination with 137Cs radionuclide.
Detector | CsI(Tl), GM |
Dose rate indication range | 0.01 μSv/h to 200 mSv/h |
Dose rate measurement range | 0.1 μSv/h to 100 mSv/h |
Dose rate measurement accuracy | ± (15 + 0.0015 / Ḣ) (where Ḣ is the measured dose rate value in mSv/h) |
Dose rate measurement energy range | 15 keV to 15 MeV |
Spectroscopy energy range | 25 keV to 3 MeV |
Full width-half maximum (FWHM) for 137Cs | ≤ 9 % |
Gamma radiation scintillation spectra acquisition channels | 1024 |
Gamma radiation sensitivity | 200 cps per µSv/h (137Cs) 2000 cps per µSv/h (241Am) |
α-radiation sensitivity (239Pu) | ≥ 0.5 counts·cm2 |
β-radiation sensitivity (90Sr+90Y) | ≥ 3.5 counts·cm2 |
α-radiation flux density measurement range | 15 to 105 min-1·cm-2 |
α-radiation flux density accuracy (239Pu) | ± (20 + 450 / φ) % |
β-radiation flux density measurement range | 6 to 105 min-1·cm-2 |
β-radiation flux density accuracy (90Sr+90Y) | ± (20 + 60 / φ) % (where φ is the measured β-radiation flux density, min-1·cm-2) |
137Cs activity measurement range | 102 to 105 Bq/kg (Bq/l) |
Alarms | visual, audible, external vibration |
Memory | 10000 history events 1000 scintillation spectra |
PC communication | USB |
Power supply | 2 AA alkaline or NiMH batteries |
Battery lifetime | 300 hours* |
Ingress protection | IP65 |
Drop test | 0.7 m |
Dimensions | 262 × 60 × 65 mm |
Weight | ≤ 820 g |
Operating temperature | –20 °С to 50 °С |
Atmospheric pressure | 84 to 106.7 kPa |
Humidity | up to 95 % at 35 °С |
Mean service lifetime | ≥ 10 years |
