X-RAY-EMISSION FROM BROADCAST TRANSMITTERS

被引：0

作者：

HUNTER, EB

机构：

[1] Greenville, North Carolina 27834, Route 1

来源：

IEEE TRANSACTIONS ON BROADCASTING | 1990年 / 36卷 / 01期

关键词：

D O I：

10.1109/11.52360

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

During the past few years, amplitude-modulated transmitters employing efficient pulse-width modulators have come into common use. These transmitters are reliable, relatively insensitive to vacuum tube characteristics, and offer excellent audio fidelity; however, their architecture requires supply voltages in the 20 to 30 kilovolt range which greatly enhances th e production of ionizing radiation in the form of x-rays. Recent analysis by Voice of America indicates that these x-rays are being emitted in short, high-intensity bursts focused into broad radial beams. Part I of this paper reviews the general aspects of ionizing radiation of interest to communications engineers. Part II examines the spectral and time domain characteristics of x-ray radiation from transmitters, suggests a method for estimating fault condition radiation values, and discusses the findings of the Voice of America. © 1990 IEEE

引用

页码：14 / 23

页数：10