Digital properties of field emission X-ray tubes with carbon nanotube field emitters

摘要

We describe reliable CNT x-ray tubes and their digital properties such as easy modulation of x-ray dose, high-speed operation, and low-voltage and low-power consumption control with an active-current control unit (ACCU) developed. The simple and advanced ACCU was found to shorten the response time of CNT x-ray tube down to sub-microsecond along with stable and reliable operation. The fast digital CNT x-ray tubes with the ACCU could provide improved x-ray imaging like blur-less and short-time scanning.