This paper describes a new approach to cathode-ray tube design aimed at achieving a significant depth reduction. The addressing function of the electron beam has been separated from the light generation process by a channel electron multiplier array, allowing the use of a novel deflection system based on a low-power scanning beam. Monochrome versions of the thin tube have been made with a 12" (...

A microfocus x-ray tube that can generate x rays with the focal spot size less than 5 m has been demonstrated using carbon nanotube CNT field emitters. A CNT cathode on a sharp tungsten tip, a magnetic solenoid lens, and a transmission-type x-ray target were adopted for the microfocus x-ray tube. The design characteristics and the operation performance of the microfocus x-ray tube are presented...

X-ray radiation is widely used in medical and industrial applications. The basic design of the x-ray tube has not changed significantly in the last century. In this paper, we demonstrate that medical diagnostic x-ray radiation can be generated using a carbon nanotube (CNT) based field-emission cathode. The device can readily produce both continuous and pulsed x-ray with a programmable waveform ...

The Online Distance Learning System from CRT Brasil Telecom (Brazilian Telephone Company), has showed that technology and education found a commum point to perform good educational methodologies.

The CRT is an increasingly well-known and used test of bias susceptibility. While alternatives are being developed, the original remains in widespread use and this has led to its becoming increasingly familiar to psychology students (Stieger & Reips, 2016), resulting in inflated scores. Extending this work, we measure the effect of prior exposure to the CRT in a sample of oil industry professio...