An 'electron tree' produced in a block of plastic (15 cm square by 2.5 cm thick) by a beam of electrons. The electrons initially penetrate about 0.5 cm into the block & stop. As the number of electrons builds up, however, their mutual electric repulsion begins to force them apart. If the beam is switched off before this happens, a subsequent small tap to the block with a metal punch releases the electrons suddenly & they shoot out, rather like lightning, leaving a pattern of tracks that becomes 'frozen' in the plastic. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stanford Linear Accelerator Center |
Bildgröße: | 4126 px × 4292 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |