Airborne equipment

Aeromagnetometer Scintrex CB-3

Typequantum (cesium)
ManufacturerScintrex LTD, Canada
Magnetometer modelCB-3
Operational range, nT15 000 – 105 000
Resolution, nT0,025
Sampling rate50 Hz
Systematic error, нТлno more than 2,5

Base Station Magnetometer GSM-19W

TypeOverhauser magnetometer
Model, ManufacturerGSM-19W, GEM, Canada
Operational range , nT20 000 – 100 000
Resolution, nT0,01
Sampling rate , Hz1; 2
Systematic error, нТл no more than 1

Airgamma spectrometers

seriesRS-500
modelRSX-5, (RSX-4)*
Type of spectrometer (detector)scintillation, digital
Detector substancethallium activated sodium iodide; structure – polycrystalline (NaI (Tl), Polyscine®)
Total volume of sensors36 liters, of them 32 liters – «lower», 4 liters – «upper» for registration of cosmical radiation
Energy resolution
(at the peak of thorium-232)
5%
Energy resolution
( at the peak of cesium-137)
8%
Differential nonlinearity<0,2% (99,5% values)
Integral Nonlinearity<0,01% (99,5% values)
Number of spectrum channels1024
sampling rate1-2 Гц
correction of pulse pile-upDigital(< 40 ns)
Signal pollution due to superposition of pulses<1% at 250 000 imp/sec
(for each crystal)
Gain stabilization (scale of energy scale)Automatic, multi-peak (according to the spectrum of gamma radiation of natural radioactive elements)
SynchronizationInternal / External
Input / output interfacesEthernet; RS¬232, 19200 – 115200 bit/s; USB
Power9-40 V; 55 (50) W
Weight (without suspension struts)114 (91) kg
Size (without suspension struts)690×573 mm; height – 288 (177) mm

Airborne electrical survey

transmitter
exciting circuitMulti-turn vertical dipole
magnetic torque, A*m2, not less tham450 000
Receiver
measurement parametersdB/dt – main (Z) component
Measuring coilsX, Y, Z –auxiliary current components
data recordingFull signal
analog to digital converterНе менее 24-bit
Sensors
altitude measurerRadar altimeter
Satellite navigation systemGPS, mounted on frame
Block of inertial meters or tilt and acceleration anglesMounted on frame
Mechanical part
Working temperaturefrom -30° C to +55°C
Survey nominal speed, km/hour100
Tow cable length, not less then , m50
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