CAJ | 학술논문

超重核的研究具有重要的科学与实际意义。目前,在自然界直接寻找超重核的方法主要包括普通质谱(ICP-SF-MS),加速器质谱(AMS)及多重中子探测的方法等。相比其他方法,AMS 具有灵敏度高、样品用量少、测量时间短等优势。本文综述了近年来国内外利用 AMS 寻找超重核的方法及现状。迄今为止,利用 AMS 寻找了40余种超重核素,但没有明显的证据表明超重核的存在,这些核素与其矿物主体元素的丰度比约在10-12到10-16之间。
초중핵적연구구유중요적과학여실제의의。목전,재자연계직접심조초중핵적방법주요포괄보통질보(ICP-SF-MS),가속기질보(AMS)급다중중자탐측적방법등。상비기타방법,AMS 구유령민도고、양품용량소、측량시간단등우세。본문종술료근년래국내외이용 AMS 심조초중핵적방법급현상。흘금위지,이용 AMS 심조료40여충초중핵소,단몰유명현적증거표명초중핵적존재,저사핵소여기광물주체원소적봉도비약재10-12도10-16지간。
There are significantly scientific and practical significance for the study of super-heavy nuclei.Currently,the methods for the study of searching for super-heavy nuclei in nature mainly include ordinary mass spectrometry methods such as ICP-SFMS, accelerator mass spectrometry (AMS)and the method of multiple neutron detection. Compared to the other methods,AMS have some advantages,such as high sensitivity, small sample size and short measuring time.The methods and the status of searching for super-heavy nuclei with AMS at home and abroad in recent years were reviewed.Until now,more than 40 species of super-heavy nuclides have been searched with AMS. There was no clear evidence of the existence of super-heavy nuclei.The abundances of these nuclides with respect to host elements of mineral were about 10 -1 2 to 10 -1 6 .