IntCal20 news

NEW CALIBRATION 7 years in the making. IntCal20 is coming soon! Click here for updates. 

Upcoming Meetings & Events

(Please scroll down for past meetings)


Conferences may be rescheduled due to COVID-19. Please check here for updated meeting dates as they are announced.

May 4-8. Physical event CANCELED, but online activities planned
EGU2020. The physical EGU General Assembly in Vienna, Austria is canceled due to COVID-19 virus. However, instead EGU is working to provide attendees with a week-long series of online activities to help minimize the impact of COVID-19 on scientific research and collaboration. Please visit for more information. 
August 26-30. Physical event CANCELED, but online activities planned 
EAA-2020. The European Association of Archaeology will hold its annual meeting in Budapest, August 26-30, 2020. There will be a session on radiocarbon dating and archaeology (session 444). Conference website:
October 25-28 Physical event CANCELED, but online activities planned 
GSA 2020. The Geological Society of America will convene in Montréal, Québec, Canada.
December 7-11
AGU 2020. San Francisco, CA, USA. 
July 5-9, 2021 [postponed from 2020]
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. The conference website is
August 29-September 3, 2021 [postponed from 2020]
AMS-15. The 15th International Accelerator Mass Spectrometry Conference will be hosted by ANSTO and held in Sydney, Australia.
September 13-16, 2021 [postponed from 2020]
14C and Diet. The 3rd Radiocarbon & Diet Conference will be held in Oxford, UK.
December 13-17
AGU 2021. New Orleans, LA, USA
March TBA [or 2nd half of 2022; postponed from 2021]
C14-24. The 24th International Radiocarbon Conference. C-Hotel Neve Ilan, Israel. Hosted by D-REAMS: Dangoor Research Accelerator Mass Spectrometer Laboratory, Weizmann Institute of Science, Israel. More Information & Accessibility Issues:
14C & Archaeology. The 10th Radiocarbon and Archeaology Confernece will be held in Zurich, Switzerland. Further details to be announced.
December 12-16


Glasgow Radiocarbon Inter-Comparison 2019

Updated 13 March 2020

A message from Marian Scott and Philip Naysmith:

Dear all, Philip and I have now completed all the sample preparation and were in the final stages of arranging their dispatch, however the global CoVid19 situation has accelerated to such an extent, that we have taken the decision to delay sending out our samples which so many people have worked very hard on providing.  We will continue monitoring the situation but realistically, we think that a more realistic deadline for our dispatch is June.  We will of course keep you informed.

We will provide updates through Radiocarbon as we prepare to dispatch the samples. Apologies for the delay.

Marian and Philip


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.



Tributes and condolences may be posted to this page hosted by Lamont-Doherty Earth Observatory:

Tweets can be sent to @14Cjournal #WallyBroecker. Visit our extensive Wally Broecker Twitter Moments page at 


Accelerator Mass Spectrometry Laboratory of the Scottish Universities Environmental Research Centre (SUERC), East Kilbride, UK. 
Technicians position. 
Summary: To provide specialist maintenance and instrument control in the SUERC Accelerator Mass Spectrometry Laboratory in support of routine & experimental direct measurement of long-lived radionuclides. To contribute to apparatus & laboratory process development. To provide specialist technical expertise and training to scientist colleagues and postgraduate students. Closing date: Dec 20th 2019.
Feel free to contact Cameron McIntyre with questions: cameron.mcintyre(at)
UGA Center for Applied Isotope Studies (CAIS). 
Link for position description:


The University of Georgia’s (UGA) Center for Applied Isotope Studies (CAIS) seeks to hire a research scientist at the rank of Assistant, Associate, or Senior Research Scientist to operate, manage, and provide leadership for the Natural Products and Biobased Materials Laboratory. This is a 12-month non-tenure track faculty position on UGA’s Research Scientist track: The incumbent will be a member of the UGA CAIS Research Scientist faculty under the direction of the CAIS Director.

The Natural Products and Biobased Materials Lab Laboratory at CAIS is an ISO17025 accredited analytical laboratory specializing in authentication of natural products and qualification of biobased materials. The laboratory serves to promote the CAIS missions of enhancing the global reputation of UGA as a research institution, providing quality analytical services to researchers, and preparing Georgia students for STEM careers. Under the supervision of the CAIS Director, the incumbent will be responsible for the daily operation and management of the Natural Products and Biobased Materials Lab. The lab is a fee-for-service analytical testing facility serving the UGA research community and external clientele including, but not limited to, academic institutions, government agencies, and private companies worldwide. The incumbent will work closely with clients and collaborators to develop tailored methods and novel approaches in the areas of stable isotope geochemistry, radiocarbon measurements, and other analytical methods.


The minimum qualifications for this position are a PhD in geosciences or related fields plus 3 years of experience in a geochemistry laboratory operating, troubleshooting, maintaining, and repairing IRMS, GC/MS, and HPLC instrumentation.
Additional Requirements:

Ability to conduct analytical assays by IRMS, 14C AMS, GC-IRMS; development, optimization, and trouble-shooting of specific assays; development and modification of sample treatment protocols; collaborating with researchers to develop innovative projects in the area of isotope geochemistry, and assisting with the maintenance of AMSinstrumentation; enhancing organic geochemistry and biogeochemistry research through the development of projects in the area of natural products and biobased materials analysis; management of analytical projects and laboratory staff; creating reports and invoicing clients for services; tracking laboratory budgets and expenditures; procurement of external funding; and publishing in the peer-reviewed literature.

The incumbent is responsible for maintaining and overseeing the ISO17025-2017 accreditation of the Natural Products and Biobased Materials Lab in conjunction with the ISO Quality Manager, designing and implementing experiments, data analysis and keeping detailed records of all procedures.


Please contact kimelliott (at) to add your job listing. Be sure to follow us on Twitter for daily updates @14Cjournal.

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.
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.
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