capture gamma ray detector

capture-gamma- ray detector

combination gamma ray-neutron laterolog

combination gamma ray-neutron-laterolog

digital gamma-ray detector

external gamma ray detector

fission gamma-ray detector

gamma ray (=γ-ray)

gamma ray detector

gamma ray neutron calibration mode

gamma ray neutron tool

gamma-ray detector

HPGe gamma ray detector

Neutron and gamma mixed field

neutron and gamma mixture radiation fileds

Neutron-gamma ray logging

cosmic-ray neutron and muon monitor

neutron and γ ray

Neutron and γ-ray Mixed field