Sampler and cell for radon detectors and method of using same

Scale monitor

Scintillator device

Segmented tubular body

Self-filling and self-purging apparatus for detecting spontaneou

Shielded pads for detecting subsurface radiation phenomena

Shielded pads for detecting subsurface radiation phenomena

Sigma/porosity tools with neutron monitors

Sigma/porosity tools with neutron monitors

Simplified radon testing package

Simultaneous fluid flow and fluid density measurements using rot

Simultaneous gamma ray measurement of formation bulk density and

Simultaneous logging system for deep wells

Simultaneous neutron lifetime and oxygen activation and fluid sa

Simultaneous oxygen and silicon neutron activation well log usin

Simultaneous thermal neutron decay time and porosity logging sys

Simultaneous thermal neutron decay time and shale compensated ch

Site survey method and apparatus

Sourceless downhole X-ray tool

Spectral gain stabilization using gross shape features of largel