scholarly journals Progress at the Seoul National University AMS Facility

Radiocarbon ◽  
2001 ◽  
Vol 43 (2A) ◽  
pp. 163-167 ◽  
Author(s):  
J C Kim ◽  
J H Park ◽  
I C Kim ◽  
C Lee ◽  
M K Cheoun ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Performance Test ◽  
Conventional Technique ◽  
National University ◽  
Mass Spectrometry Facility ◽  
Seoul National University ◽  
Accelerator System

The accelerator mass spectrometry facility at the Seoul National University (SNU-AMS) was completed in December 1998 and a report was presented at the Vienna AMS conference in September 1999. At the conference, we described the basic components of our accelerator system and reported the results of the performance test. Since then, extensive testing of the accuracy and reproducibility of the system has been carried out, and about 200 unknown samples have been measured so far. We obtained a precision of 4‰ for modern samples, and an accuracy of approximately 40 yr was demonstrated by analyzing samples that were previously dated with a conventional technique and by other AMS laboratories. We present these results here, together with detailed descriptions of our data-taking and analysis procedures.

scholarly journals Seoul National University Accelerator Mass Spectrometry (SNU-AMS) Radiocarbon Date List I

Radiocarbon ◽  
2006 ◽  
Vol 48 (2) ◽  
pp. 259-266 ◽  
Author(s):  
J C Kim ◽  
M Y Youn ◽  
I C Kim ◽  
J H Park ◽  
Y M Song ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Catalytic Reduction ◽  
Sample Pretreatment ◽  
Environmental Data ◽  
Geological Samples ◽  
National University ◽  
Mass Spectrometry Facility ◽  
Seoul National University ◽  
Accelerator System

The accelerator mass spectrometry facility at Seoul National University (SNU-AMS) began functioning in December 1998 and was first reported at the Vienna AMS conference in October 1999 and at the 17th International Radiocarbon Conference in Israel in June 2000. At the Vienna conference, we reported our accelerator system (Kim et al. 2000) and details of the basic sample preparation system (Lee et al. 2000), such as the combustion line to produce CO2; the catalytic reduction line for the graphitization of CO2; and the pretreatment procedures for wood, charcoal, and peat samples. The recent progress of the AMS facility (Kim et al. 2001) and the extension of the sample pretreatment system to iron and bone samples were reported at the 17th International Radiocarbon Conference (Cheoun et al. 2001). In the meantime, extensive testing of accuracy and reproducibility has been carried out, and ∼1000 unknown archaeological and geological samples have been measured every year. In this report, the archaeological, geological, and environmental data carried out in 1999 are presented in terms of yr BP.

scholarly journals Seoul National University Accelerator Mass Spectrometry (SNU-AMS) Radiocarbon Date List II

Radiocarbon ◽  
2006 ◽  
Vol 48 (2) ◽  
pp. 267-283 ◽  
Author(s):  
J C Kim ◽  
M Y Youn ◽  
I C Kim ◽  
J H Park ◽  
Y M Song ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Catalytic Reduction ◽  
Sample Pretreatment ◽  
Environmental Data ◽  
Geological Samples ◽  
National University ◽  
Mass Spectrometry Facility ◽  
Seoul National University ◽  
Accelerator System

The accelerator mass spectrometry facility at Seoul National University (SNU-AMS) began functioning in December 1998 and was first reported at the Vienna AMS conference in October 1999 and at the 17th Radiocarbon Conference in Israel in June 2000. At the Vienna conference, we reported our accelerator system (Kim et al. 2000) and the basic sample preparation system (Lee et al. 2000), including the combustion line to produce CO2; the catalytic reduction line for the graphitization of CO2; and also pretreatment procedures for wood, charcoal, and peat samples. Recent progress of the AMS facility (Kim et al. 2001) and extension of the sample pretreatment system to iron and bone samples were reported at the 17th Radiocarbon Conference (Cheoun et al. 2001). In the meantime, extensive testing of accuracy and reproducibility has been carried out, and ∼1000 unknown archaeological and geological samples have been measured every year. A report of data carried out in 1999 is presented by Kim et al. (this issue). In this report, the archaeological, geological, and environmental data carried out in 2000 are presented in terms of yr BP.

scholarly journals Seoul National University Accelerator Mass Spectrometry (SNU-AMS) Radiocarbon Date List IV

Radiocarbon ◽  
2007 ◽  
Vol 49 (3) ◽  
pp. 1395-1402 ◽  
Author(s):  
M Youn ◽  
Y M Song ◽  
J Kang ◽  
J C Kim ◽  
M K Cheoun
Keyword(s):  
Mass Spectrometry ◽  
Sample Preparation ◽  
Accelerator Mass Spectrometry ◽  
Environmental Samples ◽  
Before Present ◽  
Geological Data ◽  
National University ◽  
Recent Developments ◽  
Seoul National University ◽  
Accelerator System

The accelerator mass spectrometry (AMS) facility at Seoul National University (SNU-AMS) was accepted in December 1998 and results reported first at the Vienna AMS conference in October 1999 and at the 17th Radiocarbon Conference in Israel, June 2000. At the Vienna conference, we reported our accelerator system and sample preparation systems (Kim et al. 2000). Recent developments of the AMS facility have been regularly reported at AMS conferences (Kim et al. 2001, 2004, 2007). Meanwhile, about 1000 unknown archaeological, geological, and environmental samples have been measured every year. In this report, the archaeological and geological data carried out in 2002 are presented in terms of years BP (before present, AD 1950), following the SNU-AMS date lists I and II published in Radiocarbon (Kim et al. 2006a,b).

scholarly journals Seoul National University Accelerator Mass Spectrometry (SNU-AMS) Radiocarbon Date List III

Radiocarbon ◽  
2007 ◽  
Vol 49 (3) ◽  
pp. 1387-1394 ◽  
Author(s):  
M Youn ◽  
Y M Song ◽  
J Kang ◽  
J C Kim ◽  
M K Cheoun
Keyword(s):  
Mass Spectrometry ◽  
Sample Preparation ◽  
Accelerator Mass Spectrometry ◽  
Environmental Samples ◽  
Before Present ◽  
Geological Data ◽  
National University ◽  
Recent Developments ◽  
Seoul National University ◽  
Accelerator System

The accelerator mass spectrometry (AMS) facility at Seoul National University (SNU-AMS) was accepted in December 1998 and results reported first at the Vienna AMS conference in October 1999 and at the 17th Radiocarbon Conference in Israel, June 2000. At the Vienna conference, we reported our accelerator system and sample preparation systems (Kim et al. 2000). Recent developments of the AMS facility have been regularly reported at AMS conferences (Kim et al. 2001, 2004, 2007). Meanwhile, about 1000 unknown archaeological, geological, and environmental samples have been measured every year. In this report, the archaeological and geological data carried out in 2001 are presented in terms of years BP (before present, AD 1950), following the SNU-AMS date lists I and II published in Radiocarbon (Kim et al. 2006a,b).

Can-AMS: The New Accelerator Mass Spectrometry Facility At The University Of Ottawa

2011 ◽  
Author(s):  
W. E. Kieser ◽  
X.-L. Zhao ◽  
I. D. Clark ◽  
T. Kotzer ◽  
A. E. Litherland ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Mass Spectrometry Facility ◽  
The University

scholarly journals The Antares AMS Centre: A Status Report

Radiocarbon ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 663-673 ◽  
Author(s):  
Claudio Tuniz ◽  
David Fink ◽  
Michael Hotchkis ◽  
Geraldine Jacobsen ◽  
Ewan Lawson ◽  
...  
Keyword(s):  
Climate Change ◽  
Mass Spectrometry ◽  
Global Climate Change ◽  
Accelerator Mass Spectrometry ◽  
Research Laboratory ◽  
Global Climate ◽  
Nuclear Safeguards ◽  
Status Report ◽  
Mass Spectrometry Facility ◽  
Advanced Programs

The ANTARES accelerator mass spectrometry facility at Lucas Heights Research Laboratory is operational and AMS measurements of 14C, 26Al and 36Cl are being carried out routinely. Measurement of 129I recently commenced and capabilities for other long-lived radioisotopes such as 10Be are being established. The overall aim of the facility is to develop advanced programs in Quaternary science, global climate change, biomedicine and nuclear safeguards.

scholarly journals The Early to Late Paleolithic Transition in Korea: A Closer Look

Radiocarbon ◽  
2013 ◽  
Vol 55 (3) ◽  
pp. 1341-1349 ◽  
Author(s):  
Christopher J Bae ◽  
Kidong Bae ◽  
Jong Chan Kim
Keyword(s):  
Mass Spectrometry ◽  
Northeast China ◽  
Northern China ◽  
Stone Tool ◽  
Late Paleolithic ◽  
National University ◽  
Type Site ◽  
Paleolithic Archaeology ◽  
Seoul National University ◽  
Ams Dates

In Korean Paleolithic archaeology, it is traditionally thought that the Late Paleolithic stone tool industries were in some way derived from the Shuidonggou site in northern China. The latter site has long been considered to be the type site of the eastern Asian Late Paleolithic blade technology. However, recent studies suggest that a number of Korean Late Paleolithic sites probably predate Shuidonggou, some by several thousands of years. Here, we present a series of accelerator mass spectrometry (AMS) dates recently analyzed by the AMS laboratory at Seoul National University and discuss further the possibility that the introduction of blade (and later microblade) technologies into Korea may have originated directly from Mongolia, Siberia, and possibly other areas of northeast China, rather than from Shuidonggou.

scholarly journals Radiocarbon with Gas Chromatography

Radiocarbon ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 711-716 ◽  
Author(s):  
Christopher Bronk Ramsey ◽  
R. E. M. Hedges
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Pilot Study ◽  
Accelerator Mass Spectrometry ◽  
Ion Source ◽  
Tracer Studies ◽  
Chemical Fractions ◽  
Peak Sensitivity ◽  
Accelerator System

In 14C tracer studies, and when looking for modern contamination in archaeological samples, it is often necessary to measure the 14C concentration of individual chemical fractions. Gas chromatography (GC) is one method that is frequently used for separation of chemical fractions. The gas ion source at the Oxford Radiocarbon Accelerator Unit for accelerator mass spectrometry (AMS) provides the opportunity to measure fractions from a GC instrument directly. Although the first investigations are likely to be 14C tracer studies, such a GC-AMS system could find much wider application. We present results from a pilot study of the peak sensitivity, baseline stability and crosstalk of the accelerator system used in this way. We also discuss the practical considerations in developing a GC-AMS instrument for routine use.

Sign in / Sign up

Export Citation Format

Share Document