Glasgow Radiocarbon Inter-Comparison 2019

The next global radiocarbon inter-comparison is currently being planned, with samples being sourced.  We will distribute the samples by the end of 2019, allowing 6 months for return of the results.  This exercise is for AMS facilities, but we will endeavour, if possible to acquire radiometric samples.


All of the samples are natural (wood, bone, peat and grain), some are known age, and overall their age spans approx. 40,000BP to modern.  In the case of peat, the sample will have been pre-treated to humic acid, but other samples will require pre-treatment.

We have designed a study with two groups of samples.  The first group is typical of the samples provided in SIRI, where the volume of material being provided will be sufficient to make a few repeat measurements.  In the second group, we will provide a quantity of material, sufficient to allow AMS labs to run (and report) multiple measurements from different wheels/batches over the space of six months experimental phase.  It is intended that sufficient material will remain to allow labs to use these as internal quality assurance samples.

Why this design?

The purpose of including the first group of samples is to allow each laboratory to quality check (once consensus values and uncertainties have been defined), their laboratory operation at the time of analyses (so a classical round robin trial). The second group of samples provides laboratories with well characterised materials which can function as secondary standards, in sufficient quantity to be run routinely and thus allow assessment of both laboratory precision and accuracy.

What should you do?

If you are interested in taking part and receiving samples, then please email or philip.naysmith@glasgow.


Wally Broecker 1931-2019

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Meetings & Events


September 21-25
GSA 2019. The annual conference of the American Geological Society will be held in Phoenix, Arizona (AZ), USA.
October 11-18
IBA 2019. The International Conference on Beam Analysis will be held in Antibes, France, on Oct. 13-18. Tutorials will be held Oct. 10-11 in Paris. Abstracts due May 31, 2019.
December 3-6
EA-AMS-8. The 8th East Asia Accelerator Mass Spectrometry Symposium, to be held in Nagoya, Japan. Early registration due September 30, 2019. Abstracts due October 31, 2019.
July 6-10
REI-III. 3rd International Radiocarbon in the Environment Conference. Hosted by the Institute of Physics - Centre for Science and Education, Silesian University of Technology, will be held in Gliwice, Poland. Web URL to come. See the flyer here. The conference website is
14C and Diet. The 3rd Radiocarbon & Diet Conference will be held in Oxford, UK, in 2020. Details to come.
AMS-15. The 15th International Accelerator Mass Spectrometry Conference. Hosted by ANSTO, Australia.
March 8-12
C14-24. The 24th International Radiocarbon Conference. Hosted by the Weizmann Institute of Science, Israel.
Past Meetings
May 5-10
13th European Conference on Accelerators in Applied Research and Technology (ECAART 13) was held in Split, Croatia (Radisson Blu Hotel).
May 9-12
Archaeometry 2019 Montreal. 22nd GMPCA Colloquium Conference on Archaeological Sciences. Hosted by Univ. Montreal.
May 20-24
Radiocarbon and Archaeology. The 9th International Symposium was held in Athens, Georgia, USA. The conference was sponsored by the Center for Applied Isotope Studies at the University of Georgia See the flyer here.
June 5-7
Methods of Absolute Chronology. The organizers would like to invite anyone practicing, using, applying, analysing, performing, evaluating, doubting, loving - etc. - any chronological tool to the 13th International Conference “Methods of Absolute Chronology”, Tarnowskie Góry, Poland.
July 25-31
INQUA 2019. The 20th INQUA Congress will be held in Dublin. Abstracts are due January 9, 2019.
July 29-August 2
CLARa 2019. The first Latin American Radiocarbon Conference (CLARa) will be held in Brazil. Accommodations will be available at the H Niteroi Hotel. Website: .
2018 25-27 Oct. Mortar Dating International Meeting, Bordeaux, France. MoDIM 2018 continues the 10-year-old tradition of international meetings dedicated to radiocarbon and luminescence dating of archaeological lime mortars and anthropogenic carbonates in general. France
2018 5-8 Sept. EAA 2018. 24th Annual Meeting of the European Association of Archaeologists in Barcelona, Spain. Spain
2018 19-24
6th International Symposium on Sediment Management. Mexico
2018 17-22
23rd International Radiocarbon Conference. Trondheim


World Dendro. Bhutan
2018 8-13 April

EGU18. The European Geosciences Union (EGU) general assembly. 




19-21 March

Univ. of Oxford. Short Course in Radiocarbon Dating and Bayesian Chronological Analysis. Link.
Oxford, UK
2018 16-18 January CAST General Assembly Meeting. Lyon, France
20–23 June 2nd International Radiocarbon and Diet Conference Aarhus, Denmark
3–7 July 2nd International Radiocarbon in the Environment Conference Debrecen, Hungary

14–18 August

19–20 August

14th International AMS Conference [AMS-14]

Calibration workshop

Ottawa, Canada
2017 11–15 December AGU Fall Meeting New Orleans, USA

Job Openings

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