| flaw detector(noun, use, tool, ray, radiation) |
| fluorescence(noun, use, tool, ray, radiation) |
| fluorescence method(expression, radiate, rays, electronics) |
| furnace(noun, ray, physics, technics) |
| gamma-ray analysis(expression, radiate, rays, electronics) |
| gamma-ray investigation(expression, radiate, rays, electronics) |
| gamma-ray method(expression, radiate, rays, electronics) |
| gamma-ray pumping(expression, radiate, rays, electronics) |
| gamma-ray spectroscope(expression, radiate, rays, electronics) |
| gamma ray spectrometry(expression, radiate, rays, electronics) |
| gamma ray test(expression, chemistry, rays, radiation) |
| gamma rays(expression, chemistry, rays, radiation) |
| generator(noun, use, tool, ray, radiation) |
| geometrical-optics ray(expression, radiate, rays, electronics) |
| geometry(noun, use, tool, ray, radiation) |
| goniometer(noun, use, tool, ray, radiation) |
| ground ray(expression, beam, radiate, rays) |
| hard x-rays(expression, radiate, rays, electronics) |
| heat rays(expression, chemistry, rays, radiation) |
| high-energy gamma rays(expression, radiate, rays, electronics) |