Radiation monitor testing. Worker using a metal sheet to test a radiation monitoring device (lower centre). On the worktop surface,behind the monitor,is a radioactive source stored in a shielded box. This box contains the radioisotope Americium-241 (Am-241). A ruler at lower left indicated the distance between the source and the counter. This counter is a type of Geiger-Muller tube. Photographed as part of work carried out by the UK's Health Protection Agency | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Public Health England |
Bildgröße: | 3396 px × 5167 px |
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