The 2SNA-1000-S DX series spectral gamma probe section is a versatile tool that can be used in a wide variety of logging applications. The tool section measures natural gamma spectra, single point resistance, and spontaneous potential. Since the tool is part of the DX family of probes, it can be operated with any DX probe section. In this manner, additional measurements (such as density) can be added to the tool string.

Users can select from three operational modes (256, 512, or 1024 channel) based on their survey needs. The tool section is offered with several different options. The standard 2SNA-1000-S uses a 0.875 by 3 inch NaI(Tl) scintillator. The probe section is available with a BGO scintillator (2SNA-1000-SB) for more efficient detection of high energy gamma particles.

The 2SNA-1000-S provides real time temperature compensation not typically offered by other systems. The response from conventional tools drifts as temperature changes. This drift is dramatic when using a BGO scintillator. The 2SNA-1000-S has been calibrated at the factory using several different sources and a swept temperature bath. Calibration coefficients resulting from these tests are stored inside the tool so that real time temperature compensation can be performed.

ADVANTAGES:

• User-Selectable resolution
• True real-time temperature compensation
• Stripping software for isotope concentration analysis available
• Can be combined with other downhole measurements
• Real-time calibration models
• Up to five energy windows for analysis

Specfications: