11. Photomultipliers with large distances between the photocathode and the first dynode are especially sensitive to magnetic fields. 12. Some portion of these low-energy photons arrive at the photocathode of an attached photomultiplier tube. 13. This is much like a CRT television, but instead of color guns the photocathode does the emitting. 14. Pyroelectric photocathodes can be used to produce a vidicon sensitive over a broad portion of the infrared spectrum. 15. This device converts the emitted photon energy into electrical energy by a photocathode via a series of other electrodes. 16. The detector uses a micro-channel plate with the sensor being a CsI photocathode to detect the UV light 17. However, the ion barrier causes fewer electrons to pass through, diminishing the improvement expected from the Gallium arsenide photocathode . 18. The nanoparticles are deposited on a glass substrate and overlain by even smaller gold nanoparticles that act as a plasmonic photocathode . 19. Wide-gap solid-state devices or vacuum devices with high-cutoff photocathodes can be attractive compared to silicon diodes. 20. An image intensifier includes three functional elements : a photocathode , a micro-channel plate ( MCP ) and a phosphor screen.
