车载4道脉冲幅度甄别器正[φ4×4英寸NaI(Tl)为探测器]对广州-阳江及香港地区辐射水平的连续测量

CONTINUOUS MEASUREMENTS OF RADIATION LEVELS ALONG GUANGZHOU-YANGJIANG AND IN HONG KONG AREA USING CARBORNE 4 CHANNEL PULSE HEIGHT DISCRIMINATOR WITH φ4″×4″ NaI(Tl) DETECTOR

文中主要给出车载4道脉冲甄别器(以φ4×4英寸 NaI(Tl)为探测器)在广州—阳江往返途中的环境天然辐射水平的连续测量以及手携此仪器对阳江—广东高本底地区中一些场所的室内、外辐射水平的测量结果。发现有些地方室外的环境天然辐射水平不像原来按“广东高本底地区(HBRA)”概念预示的那样高。文中还给出了用同样方法在香港地区的测量结果,以资比较。

The paper is intended to present the results that were gained through both the continuousmeasurements of environmental natural radiation levels conducted using carborne 4 channel pulseheight discriminator with φ 4″×4″ NaI(Tl)detector on a round trip between Guangzhou andYangjiang and the measurements of indoor and outdoor radiation level carried out by holding theapparatus in hand in some places of Yangjiang area called high background radiation area(HBRA)inGuangdong province.It was found that outdoor radiation levels in some places on field trip were iaot sohigh as supposed from the word HBRA.The results measured in some areas of Hong Kong in the sameway as in Guangdong province are also reported for the purpose of comparison.