- Nuclear counters--Congresses (5)
- Astronautics in astronomy--Congresses (1)
- Astronomical instruments--Congresses (1)
- Electrooptics--Congresses (1)
- Gamma ray spectrometry--Congresses (1)
- Gamma rays--Industrial applications--Congresses (1)
- Gamma rays--Measurement--Congresses (1)
- Imaging systems--Industrial applications--Congresses (1)
- Low temperatures--Instruments--Congresses (1)
- Neutrons--Industrial applications--Congresses (1)
- Radiation--Dosage--Congresses (1)
- Superconductors--Congresses (1)
- Ultraviolet spectrometry--Congresses (1)
- X-ray spectroscopy--Congresses (1)
- X-rays--Industrial applications--Congresses (1)