- 방사성탄소연대측정
- ㆍ 저자명
- 이현주,황진주,백현주,Leigh. Hyeon-Ju,Hwang. Jin-Ju,Paek. Hyun-Ju
- ㆍ 간행물명
- 保存科學硏究
- ㆍ 권/호정보
- 2002년|23권 4호|pp.197-214 (18 pages)
- ㆍ 발행정보
- 국립문화재연구소
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
It is very important to determine the age of the Cultural Properties in archeology. In about 1950, W.F. Libby and a team of scientists at the University of Chicago developed the Radiocarbon Dating technique. Radiocarbon($^14$C) Dating is probably one of the most widely used and best known absolute dating methods. Radiocarbon ages are conventionally specified to the year 1950. This year is 0 BP year. BP is the initial of Before Present. The $^14$C within an organism is continually decaying into stable carbon isotopes. When $^14$C decays, it emits a $eta$ - particle with an energy content of 156 KeV and becomes 14N. Only the $eta$ - particle is detected by Liquid Scintillation Counting. $^14$C has a half life of 5730 years. It has been used to date samples as old as 50,000 years. Radiocarbon determinations can be obtained on organic material : wood, charcoal, shell, etc. The results of radiocarbon dating using Benzene Synthesizer and Liquid Scintillation Counter are KCP539 $4030pm60$BP year, KCP540 $3980pm60$BP year, KCP575 $4870pm50$, KCP576 $100pm50$BP year, KCP577 $130pm50$BP yea and KCP578 $210pm70$BP year.