scholarly journals The Hvee 14C System at Groningen

Radiocarbon ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 649-656 ◽  
Author(s):  
Andreas Gottdang ◽  
Dirk J. W. Mous ◽  
Johannes Van Der Plicht
Keyword(s):  
Mass Spectrometry ◽  
High Throughput ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Performance Measurements ◽  
System Description ◽  
Accelerator Mass Spectrometer ◽  
And Performance ◽  
High Voltage Engineering ◽  
New Generation

Since May 1994, a new-generation accelerator mass spectrometer (AMS) has been fully operational at the Centre for Isotope Research in Groningen, The Netherlands. The fully automated and high-throughput accelerator mass spectrometry (AMS) system, manufactured by High Voltage Engineering Europa (HVEE) is dedicated to radiocarbon analysis. The HVEE 4130 14C AMS is able to analyze up to 3000 samples per year. The system is characterized by simultaneous transport of all three isotopes (12C, 13C, 14C) and 14C analysis with a precision below 0.5 pMC and a daily stability below 0.5 pMC. We present here a system description together with stability and performance measurements.

RADIOCARBON IN MEXICO: FROM PROPORTIONAL COUNTERS TO AMS

Radiocarbon ◽  
2021 ◽  
pp. 1-7
Author(s):  
Corina Solís ◽  
Efraín Chávez ◽  
Arcadio Huerta ◽  
María Esther Ortiz ◽  
Alberto Alcántara ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Sample Preparation ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Science And Technology ◽  
National Council ◽  
University Of Arizona ◽  
Technological Developments ◽  
High Voltage Engineering ◽  
The University

ABSTRACT Augusto Moreno is credited with establishing the first radiocarbon (14C) laboratory in Mexico in the 1950s, however, 14C measurement with the accelerator mass spectrometry (AMS) technique was not achieved in our country until 2003. Douglas Donahue from the University of Arizona, a pioneer in using AMS for 14C dating, participated in that experiment; then, the idea of establishing a 14C AMS laboratory evolved into a feasible project. This was finally reached in 2013, thanks to the technological developments in AMS and sample preparation with automated equipment, and the backing and support of the National Autonomous University of Mexico and the National Council for Science and Technology. The Mexican AMS Laboratory, LEMA, with a compact 1 MV system from High Voltage Engineering Europa, and its sample preparation laboratories with IonPlus automated graphitization equipment, is now a reality.

Are Compact AMS Facilities a Competitive Alternative to Larger Tandem Accelerators?

Radiocarbon ◽  
2010 ◽  
Vol 52 (2) ◽  
pp. 319-330 ◽  
Author(s):  
M Suter ◽  
A M Müller ◽  
V Alfimov ◽  
M Christl ◽  
T Schulze-König ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
The Netherlands ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Biomedical Applications ◽  
Detection System ◽  
Ion Optics ◽  
Recent Developments ◽  
High Voltage Engineering

In the last decade, small and compact accelerator mass spectrometry (AMS) systems became available operating at terminal voltages of 1 MV and below. This new category of instruments has become competitive for radiocarbon detection to larger tandem accelerators and many of these instruments are successfully used for 14C dating or biomedical applications. The AMS group at ETH Zurich has demonstrated that small instruments can be built, which allow measurements also of other radionuclides such as 10Be, 26Al, 129I, and the actinides. 41Ca measurements can be performed with sufficient sensitivity for biomedical applications. A summary of recent developments made at the 500kV Pelletron in Zurich is given and its performance is compared with that of a commercial compact instrument from the company High Voltage Engineering Europe (HVEE) in Amersfoort, the Netherlands, operating at 1MV at CNA in Seville, Spain, as well as with that of larger AMS facilities. It turns out that the ion optics, stripper design, and the detection system are critical for the performance.

scholarly journals Accelerator Mass Spectrometry at High Voltage Engineering Europa (HVEE)

Radiocarbon ◽  
2001 ◽  
Vol 43 (2A) ◽  
pp. 149-156 ◽  
Author(s):  
A Gottdang ◽  
M Klein ◽  
D J W Mous
Keyword(s):  
Mass Spectrometry ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Ion Beam ◽  
Ion Source ◽  
Long Term Stability ◽  
Routine Basis ◽  
Analysis System ◽  
Under Construction ◽  
High Voltage Engineering

In recent years, High Voltage Engineering Europa (HVEE) has demonstrated its capability of developing and installing turnkey accelerator mass spectrometry (AMS) equipment for the analysis of, among others, 14C and 129I. Five 3MV systems using sequential and/or simultaneous injection are operational in the field today, and they have shown excellent long-term stability providing high-precision analyses on a routine basis. Another three AMS systems are in production. It is projected that for the time being, AMS will continue to broaden its field of applications; a saturation of the market of AMS facilities is not expected in the near future.To meet the specific demands of the biomedical research community, we have developed an extreme compact 14C AMS system comprising a hybrid ion source capable of handling both graphite as well as CO2 samples. The source is optimized for easy maintenance, accommodates up to 200 samples, and can be implemented in any other AMS system.More recently, HVEE has initiated the development of an AMS system capable of detecting, among others, 36Cl and 41Ca. The design will include a HVEE 5MV Tandetron™. The accelerator is currently under construction as part of an ion beam analysis system for the Universidad Autonoma de Madrid (Spain).

scholarly journals A High-Performance 14C Accelerator Mass Spectrometry System

Radiocarbon ◽  
2010 ◽  
Vol 52 (2) ◽  
pp. 228-235 ◽  
Author(s):  
M L Roberts ◽  
J R Burton ◽  
K L Elder ◽  
B E Longworth ◽  
C P McIntyre ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Throughput ◽  
Accelerator Mass Spectrometry ◽  
High Performance ◽  
Precision Measurements ◽  
Woods Hole Oceanographic Institution ◽  
Optical Elements ◽  
Mass Spectrometry System ◽  
And Performance ◽  
New System

A new and unique radiocarbon accelerator mass spectrometry (AMS) facility has been constructed at the Woods Hole Oceanographic Institution. The defining characteristic of the new system is its large-gap optical elements that provide a larger-than-standard beam acceptance. Such a system is ideally suited for high-throughput, high-precision measurements of 14C. Details and performance of the new system are presented.

scholarly journals Isotope-Ratio and Background Corrections for Accelerator Mass Spectrometry Radiocarbon Measurements

Radiocarbon ◽  
1990 ◽  
Vol 32 (2) ◽  
pp. 135-142 ◽  
Author(s):  
D J Donahue ◽  
T W Linick ◽  
A J T Jull
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometer ◽  
Accelerator Mass Spectrometry ◽  
Isotope Ratio ◽  
Isotope Ratios ◽  
Sample Contamination ◽  
Accelerator Mass Spectrometer

We present here the method we use to convert to radiocarbon ages (14C/13C) ratios measured in the Arizona Accelerator Mass Spectrometer facility. We describe the procedures we use to convert sample and standard isotope ratios to values appropriate for calculation of radiocarbon ages. We also discuss, in some detail, corrections to account for sample contamination.

scholarly journals Breakthrough of the Mini-Cyclotron Mass Spectrometer for 14C Analysis

Radiocarbon ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 675-681 ◽  
Author(s):  
Maobai Chen ◽  
Deming Li ◽  
Senlin Xu ◽  
Guosheng Chen ◽  
Ligong Shen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometer ◽  
Accelerator Mass Spectrometry ◽  
Nuclear Research ◽  
Transmission Efficiency ◽  
Extraction Region ◽  
Accelerator Mass Spectrometer ◽  
New Ideas ◽  
Further Development ◽  
Cyclotron Mass

We present results of current measurements on the super-sensitive mini-cyclotron as an accelerator mass spectrometer, successfully developed at Shanghai Institute of Nuclear Research (SINR). We describe new ideas and unique techniques adopted for increasing the transmission efficiency in the injection, acceleration and extraction region, for eliminating various backgrounds and for improving the precision of 14C analysis, which have led to the breakthrough of our Shanghai Mini-Cyclotron Accelerator Mass Spectrometry project. We also discuss further development of the prototype facility.

scholarly journals A High-Throughput, Low-Cost Method for Analysis of Carbonate Samples for 14C

Radiocarbon ◽  
2013 ◽  
Vol 55 (2) ◽  
pp. 585-592 ◽  
Author(s):  
Mark L Roberts ◽  
Steven R Beaupré ◽  
Joshua R Burton
Keyword(s):  
Mass Spectrometry ◽  
Cost Analysis ◽  
High Throughput ◽  
Accelerator Mass Spectrometry ◽  
Organic Material ◽  
Low Cost ◽  
Automated System ◽  
Woods Hole Oceanographic Institution ◽  
Ocean Sciences ◽  
Better Than

The National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility at the Woods Hole Oceanographic Institution has developed an automated system for high-throughput, low-cost analysis of radiocarbon in carbonate samples (e.g. corals, carbonaceous sediments, speleothems, etc.). The method bypasses graphitization and pretreatment, and reduces costs to about 1/5th the price of a graphite-based 14C carbonate analysis, with a throughput of 60 unknowns per day and an analytical precision of better than 2%. Additionally, a simple mixing experiment indicated that extensive cleaning of carbonate samples to remove organic material is not necessary.

scholarly journals First Results from the Groningen AMS Facility

Radiocarbon ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 657-661 ◽  
Author(s):  
Johannes Van Der Plicht ◽  
Anita Aerts ◽  
Stef Wijma ◽  
Albert Zondervan
Keyword(s):  
The Netherlands ◽  
High Precision ◽  
Mass Spectrometer ◽  
Short Summary ◽  
Accelerator Mass Spectrometer ◽  
First Results ◽  
And Performance ◽  
New Generation ◽  
Full Operation

A new generation accelerator mass spectrometer has been installed at the Centre for Isotope Research in Groningen, The Netherlands. It is a dedicated 14C machine, with a capacity of measuring 3000 samples per year with high precision (< 0.5%). The system has been in full operation since the summer of 1994. We present here a short summary of the results and performance obtained thus far.

scholarly journals Sample Throughput and Data Quality at the Leibniz-Labor AMS Facility

Radiocarbon ◽  
1997 ◽  
Vol 40 (1) ◽  
pp. 239-245 ◽  
Author(s):  
M.-J. Nadeau ◽  
P. M. Grootes ◽  
Markus Schleicher ◽  
Peter Hasselberg ◽  
Anke Rieck ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Statistical Analysis ◽  
Sample Preparation ◽  
Optimal Condition ◽  
Accelerator Mass Spectrometry ◽  
Current Level ◽  
System A ◽  
Sample Throughput ◽  
And Performance ◽  
Modern Sample

Since our first report on the performance of the Kiel accelerator mass spectrometry (AMS) system and our early work on sample preparation, systems have been built to improve the sample quality and throughput of the laboratory. Minor modifications were also made on the AMS system, mainly in order to reduce the amount of work and time needed to maintain the system in optimal condition. The design and performance of a 20-port reduction system, a pneumatic target press, and a remote alarm unit for the AMS system are discussed, along with an overview of the results obtained during the last year and the procedure used to obtain them. Statistical analysis shows that the contribution of the AMS system to the measuring uncertainty at our current level (0.3% for a modern sample) is negligible.

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