Origin of Ion Burn in Cathode-Ray Tubes

Recycling of Cathode Ray Tubes (CRTs) in electronic waste

Do liquid crystal displays assure better readability than cathode-ray tubes?

Flat-panel displays, especially liquid crystal displays (LCDs), are now firmly established as important devices for information displays. But do LCDs assure better readability than cathode-ray tubes (CRTs)? We carried out an experiment using four types of displays: negative and positive CRTs, and LCDs with and without backlighting. A syllable-checking task using the Japanese katakana alphabet w...

Dormant Cathode Erosion in a Multiple-Cathode Gridded Ion Thruster

A rectangular gridded ion thruster discharge chamber is investigated for operation with multiple discharge cathode assemblies. The multiple-cathode approach attempts to increase thruster throughput and lifetime by operating three discharge cathode assemblies sequentially, possibly providing a threefold increase in discharge chamber life. Previous multiple-cathode electric propulsion devices, su...

In Situ X-ray Absorption Studies of Cathode Materials for Rechargeable Lithium-Ion Batteries

Rechargeable batteries with high energy and power density are in great demand as energy sources for various purposes; e.g., portable telecommunication, computer equipment, hybrid electric vehicles, etc. Lithiumion batteries are the most promising candidates to fulfill such needs due to their intrinsic high discharge voltage and relatively light weight. The current commercial lithium-ion battery...

Cathode Ion Bombardment in RF Photoguns