Uniaxial compression studies are performed on 50‐µm‐diameter bundles of nominally
vertical, intertwined carbon nanotubes grown via chemical vapor deposition from a …

Gigahertz to terahertz radiation sources based on cold-cathode vacuum electron technology
are pursued, because its unique characteristics of instant switch-on and power saving are …

It remains difficult to obtain a carbon nanotube (CNT) emitter that simultaneously exhibits
high current density, low fluctuation, and long service time because CNTs are easily …

Field emission (FE) electron sources based on carbon nanotubes (CNTs) have the potential
to serve as cold cathodes for various vacuum microelectronic and nanoelectronic devices …

Hysteresis in the field emission (FE) data of a chemical vapor synthesized carbon nanotube
fiber cathode is analyzed in the regime where self-heating effects are negligible. In both the …

We have created a field emitter composed of a carbon nanotube (CNT) yarn, which was
prepared by direct spinning through chemical vapor deposition and then formed into a …

We are reporting the fabrication of a very efficient electron source using millimeter-long and
highly crystalline carbon nanotubes. These devices start to emit electrons at fields as low as …

Over the last few decades, the achievements and progress in the field of medical imaging
have dramatically enhanced the early detection and treatment of many pathological …

In order to develop field emission cold cathode radiation source devices, a gridded carbon
nanotube (CNT) cold cathode electron gun is theoretically and experimentally investigated …

A magnetic-focused X-band traveling wave tube (TWT) based on carbon nanotube (CNT)
cathode is presented. The CNT TWT has a simple structure of the electron gun, consisting of …