ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Detector: Geiger-Mueller tube, CsI(Tl), He-3
Type of registered radiation: α, β, photon, neutron
Energy range of β-radiation flux density measurement: 150 keV - 3.5 MeV
Energy range of the measures of neutron radiation: 0.025 eV - 14 MeV
Energy range of the measures of photon radiation: 15 keV - 15 MeV
Integral nonlinearity (INL) of spectrometer conversion characteristic: 1%
Energy resolution when acquiring scintillation spectra by 0.662 MeV (137Cs) line, no more: 9%
Quantity of accumulation channels: 1024
Number of γ-radiation scintillation spectra saved in the instrument’s memory: at least 1000
Ambient dose equivalent rate (ADER) of photon radiation measurement range: 0.1 μSv/h - 100 mSv/h
α-radiation flux density measurement range: 15 - 10⁵ min⁻¹⋅cm⁻²
β-radiation flux density measurement range: 6 - 10⁵ min⁻¹⋅cm⁻²
137Cs activity concentrations measurement range: 10² - 10⁵ Bq/kg (Bq/l)
Ambient dose equivalent rate (ADER) of photon radiation indication range: 0.01 μSv/h - 200 mSv/h
Accuracy of photon radiation ADER measurement: ±(15 + 0.0015/H) %; where H - measured ADER in mSv/h
α-radiation flux density accuracy: ±(20 + 450/φα) %; where φα - measured α-radiation flux density, min⁻¹⋅cm⁻²
β-radiation flux density accuracy: ±(20 + 60/φβ) %; where φβ - measured β-radiation flux density, min⁻¹⋅cm⁻²
Accuracy of 137Cs activity concentrations measurement: ±(30 + 2000/A) %; where A - measured activity concentrations, Bq/kg (Bq/l)
Energy response relative to 0.662 MeV (137Cs):
±40% for energy range 15 keV - 45 keV
±30% for energy range 45 keV - 15 MeV
Minimum detectable amounts of radioactive materials:
Gamma radiation sources (at a distance of 0.2 m when moving at a speed of 0.5 m/s):
133Ba: 55 kBq
137Cs: 100 kBq
60Co: 50 kBq
Standard sample of plutonium: 0.3 g
Standard sample of uranium: 10 g
Neutron radiation sources (at a distance of 1 m when moving at a speed of 0.5 m/s):
252Cf: 15,000 n/s
Standard sample of plutonium: 250 g
Activity measurement sample density range: 0.2 - 1.6 g/cm³
Alarm Type: Color LCD, audible, vibration (external)
Radionuclide identification: Yes
PC communication: USB
Positioning system: GPS
Dimensions: 262 x 60 x 65 mm
Weight: no more than 0.82 kg
Ingress protection: IP65
Drop test on concrete floor: 0.7 m
Maximum permissible gamma radiation influence within 5 min: 1 Sv/h
Mean recovery time: 1 h
Mean time between failures, no less than: 20,000 h
Atmospheric pressure: from 84.0 to 106.7 kPa
Power source: 2 AA batteries
Battery operating time, at least: 300 h under condition: ADER up to 0.3 μSv/h; Backlight usage up to 5 min/day; Alarm duration up to 5 min/day
