Development of a sample preparation system for AMS radiocarbon dating at CRICH, Korea
Creators
- 1. Cultural Research Institute of Chungcheong Heritage, Gongju (Korea, Republic of)
- 2. Kangwon National University, Chuncheon (Korea, Republic of)
- 3. Chungnam National University, Daejeon (Korea, Republic of)
- 4. Seoul National University, Seoul (Korea, Republic of)
Description
We developed a sample preparation system for radiocarbon dating by using AMS measurement at Cultural Research Institute of Chungcheong Heritage, Korea. From the investigation of the reduction process, the optimum graphitization temperature was chosen as 625 .deg. C. Using Aldrich graphite powder of 0.75 ± 0.023 pMC, the background value of our preparation system was controlled at a low level. The robustness against chemical treatment and contamination was also observed from samples of Oxalic acid II and IAEA-C4. The resultant values, 134.04 ± 0.99 pMC and 0.38 ± 0.043 pMC, were in good agreement with the consensus values. Based on comparison, our conventional ages agreed very well with those of Beta Analytic Co. and SNU-AMS. No memory effect existed in the preparation system. Therefore, we concluded that the sample preparation system was operated in a stable manner and that the basic radiocarbon dating procedures were completely verified.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Physical Society
- Journal Volume
- 56
- Journal Issue
- 1
- Series
- 13 refs, 4 figs, 2 tabs
- Journal Page Range
- p. 15-19
- ISSN
- 0374-4884
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 44047433
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CALIBRATION STANDARDS; CARBON 14; COMPARATIVE EVALUATIONS; GRAPHITE; GRAPHITIZATION; ISOTOPE DATING; MASS SPECTRA; OXALIC ACID; POWDERS; SAMPLE PREPARATION
- Descriptors DEC
- AGE ESTIMATION; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON; CARBON ISOTOPES; CARBOXYLIC ACIDS; DICARBOXYLIC ACIDS; ELEMENTS; EVALUATION; EVEN-EVEN NUCLEI; ISOTOPES; LIGHT NUCLEI; MINERALS; NONMETALS; NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; RADIOISOTOPES; SPECTRA; STANDARDS; YEARS LIVING RADIOISOTOPES