Current activities at the Seoul National University AMS

Monday, 5 September 2005

This presentation is part of: Poster Session I

Current activities at the Seoul National University AMS

Jong Chan Kim¹, Minyoung Youn², S.C. Lee², C.C. Yun², Y.M. Song², J. Kang², and H.R. Choi². (1) Physics Department, Seoul National University, Seoul, 151-742, South Korea, (2) National Center for Inter-Universities Research Facility, Seoul National University, Seoul, 151-742, South Korea

Since our last status report at AMS 9 in Nagoya, Japan, the ¹⁴C AMS activities have been considerably increased giving an annual throughput in the range of 1000 unknowns. In the meantime, we have also diversified our research activities to areas other than ¹⁴C AMS in order to expand the use of our accelerator and further support the local archaeology community. They are

1] A new ¹⁰Be AMS line has been constructed and diagnostic measurements are in progress.[1]

2] A system of PIXE measurements has been set up, and obsidian artefacts from Upper Paleolithics have been measured for provenance studies.

3] Natural radioactivities in various materials such as bones, speleotherms and paleosols were measured for the purpose of dating and soil classification.[2.3]

We will report progresses on these three items following a brief mention of our ¹⁴C activities.

[1] J.C.Kim et al., 10Be AMS at the Seoul National University: this conference

[2] J.G.Yum et al., Age dating and paleoenvironmental change of the Kunang cave

paleolithic site: Jour. of the Geol. Soc. of Korea, v. 40, no.2, (2004) 203-211

[3] J.C.Kim et al., Dating paleosols from Paleolithic sites in Korea:

NIMB 223-224(2004)723-730

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