The equipment was development by AO NPP VNIIGIS in cooperation with OOO NPP INGEO and OOO NPP INGEO-Service
is designed to measure the induced gamma-ray flux for formation total waterlogged porosity and lithology within different kind of wells.
Specifications
| Waterlogged porosity range, % | 1-40 |
| Relative measurement error, % | up to 5 |
| Probe length (small/large), mm | 300/600 |
| Neutron generator type | IBN-8-5 |
| Power supply, V | 50-60 |
| Maximum source emission rate, n/sec | 5×106 |
| Maximum operating temperature, °С | 120 |
| Maximum hydrostatic pressure, MPa | 60 |
| Downhole tool dimensions, mm: diameter length | 43/60 1200/1600 |
| Weight, kg | 12/18 |
Borehole tool is to be run with the log recorder Vulkan V3 with one-core and tree-core cable.

