Borehole scintillation radiometer SRP-20 − the most advanced version of well-known logging radiometers SRP-97K and SRP-68-02/03 and their analogue in terms of functionality and application. The device is designed to conduct gamma-ray logging in wells up to 300 m depth and drillings. The borehole and hand-held (analogue of SRP-68-01, SRP-88 and SRP-97) versions are in series production.
When conducting gamma-ray logging, a continuous curve or chart is recorded, which displays the intensity of gamma radiation in nSv/h. Due to natural absorption by host rock, ionizing radiation from rocks and objects within a radius of up to 30 cm from the scintillation detector is recorded.
Why SRP-20?
Measurement range of exposure dose rate of gamma radiation |
0 ÷ 3 000 nSv/h |
Fundamental error of measurement of exposure dose rate of gamma radiation of 226Ra radionuclide |
no more than ±15% (not standardized in the measurement subrange 30 nSv/h) |
Measurement range of the average count rate of recorded gamma |
0 ÷ 10 000 s-1 |
Fundamental error of measurement of average count rate of recorded gamma |
no more than ±10% |
Energy range of detecting gamma |
35 ÷ 3 000 keV |
Variation limit of averaging window |
1 ÷ 20 s |
Setting time of operating mode |
no more than 1 min |
Power supply voltage |
12.5 ± 2 V |
Average power |
0.9 W |
Life time of power supply |
no less than 25 h |
Operating temperature range |
-40 ÷ +50 ˚С |
Dimensions |
|
- detection unit |
36 × 1010 mm |
- measuring console with power supply |
200 × 90 × 145 mm |
Interfaces |
USB, Bluetooth |
Weight |
|
- detection unit |
2.5 kg |
- measuring console with power supply |
2.6 kg |