Spark counter. Illustration showing a spark counter with a sample of radium, a source of ionizing radiation, held close to it. A spark counter consists of a wire below a metal gauze, with a high voltage applied between them. A radioactive source such as radium, which emits alpha particles, ionizes the air between the gauze and wire creating sparks. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4181 px × 4181 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |