CAJ | 학술논문

瞬发伽马中子活化分析（PGNAA）为非破坏性、在线测量的核分析方法。目前国际上有30多座研究堆建立了PGNAA实验室。本文介绍了三种定量瞬发伽马活化分析方法：相对法、校准曲线法、k0因子法，阐述了基本原理及其应用领域，以及针对短寿命核素高精度测量的束流斩波器技术，针对大样品测量带来的中子自吸收和伽马自屏蔽效应的内标法。此外还简介了基于CARR堆的热中子瞬发伽马活化分析装置进展情况，对国内的PGNAA问题进行了探讨。
순발가마중자활화분석（PGNAA）위비파배성、재선측량적핵분석방법。목전국제상유30다좌연구퇴건립료PGNAA실험실。본문개소료삼충정량순발가마활화분석방법：상대법、교준곡선법、k0인자법，천술료기본원리급기응용영역，이급침대단수명핵소고정도측량적속류참파기기술，침대대양품측량대래적중자자흡수화가마자병폐효응적내표법。차외환간개료기우CARR퇴적열중자순발가마활화분석장치진전정황，대국내적PGNAA문제진행료탐토。
Prompt Gamma Neutron Activation Analysis (PGNAA) is one of the nonde‐structive and On‐line measurement of nuclear analytical methods ,There are more than 30 PGNAA laboratories which are established based on the research reactor currently . The basic principle and the application field of three kinds of analytical method of PGNAA were introduced ,such as the relative comparison method、calibration method、k0‐factor method .T he short life nuclides is proposed using the beam chopper technique in order to improve the measurement accuracy . T he internal standard method w as proposed for that large sample neutron measurement that brings self absorption and gamma‐ray self shielding effect .The PGNAA system was introduced at CARR .It pro‐vides methodology reference to establish the prompt gamma activation analysis on the base of CARR for our country .