NGT-T Gamma Tool (175°C)
Now available as the NGT-T2!
NGT-T
Gamma Tool (1.36” OD)
The NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! Initially developed for Tensor in 1993, the NGT-T helped propel the momentum of horizontal and directional drilling worldwide. It has been the workhorse of the independent drilling industry for over 30 years. The NGT-T has been continuously improved upon, keeping pace with the changing needs of the MWD/DD industry.
Now available as the NGT-T2!
NGT-T
Gamma Tool (1.36” OD)
The NGT-T (Natural Gamma Tool-Tensor) is the largest selling MWD gamma tool on the market! Initially developed for Tensor in 1993, the NGT-T helped propel the momentum of horizontal and directional drilling worldwide. It has been the workhorse of the independent drilling industry for over 30 years. The NGT-T has been continuously improved upon, keeping pace with the changing needs of the MWD/DD industry.
NGT-T Specifications
P/N 200-000-000
| Detector | Scintillator Crystal | Sodium Iodide, Na(TI) |
|---|---|---|
| Photomultiplier | R3991A (Hamamatsu) | |
| Mechanical | Diameter (OD) | 1.36” |
| Length (make-up) | 13.6” | |
| Weight | 1.7 lb. | |
| End Connectors | Micro-D Subminiature, 15-Pin | |
| Material | Aluminum Alloy | |
| Performance | Sensitivity | 1.14 CPS/API* |
| Accuracy | +/- 5% to 300°F +/- 10% to 350°F |
|
| Environmental | Operating Temperature | 0°F to 350°F |
| Survival Temperature (reduced accuracy) | -40°F to 400°F | |
| Heat/Cool Rate, Max. | 5°F per minute | |
| Vibration (3 axis) 50-1000Hz, Random | 30G (20G RMS) | |
| Shock (3 axis) | 1000G, 0.5ms, half-sine | |
| Power Requirements | DC Input Voltage | 17-48 VDC, 50VDC Max. |
| Tool Current | 8-11 mA | |
| Output Signal | Negative Pulse | +5V to GND, 5 uSec width |
* Counts are collected with gamma tool mounted within standard BeCu pressure barrel, (OD 1.875″, ID 1.500″). API Calibration performed with AEA Technology, QSA Inc., KUTh Field Verifier #188074, S/N 255 Radionuclides: K-40(11.7%), U-238(90 ppm), Th-232(40 ppm).