Гелий с воздухом
Эта трубка с титановыми электродами и после откачки и сильного прогрева катода (чтобы убрать кислород, азот и остальные хим. активные газы в виде примесей в воздухе) медленно течет. Поэтому несмотря на получение неплохого свечения в гелии за сутки давление заметно повышается, меняя цвет положительного столба на азотный и меняя цвет прикатодного свечения на бело-фиолетовый. Повторный разогрев катода устраняет эту проблему но только временно, разумеется.
- Раздел: Хобби
- Дата съёмки: неизвестно
- Дата загрузки фото: 31.10.2021 23:33
- Оригинальная фотография: 4738 x 3398 (2,0 Мб)
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