A new AMS facility in Mexico

作者：Solis C^*; Chavez Lomeli E; Ortiz M E; Huerta A; Andrade E; Barrios E

来源：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 2014, 331: 233-237.

DOI：10.1016/j.nimb.2014.02.015

• Accelerator Mass Spectrometry
• Radiocarbon
• Cosmogenic isotopes
• Radionuclides

A new Accelerator Mass Spectrometry system has been installed at the Institute of Physics of the National Autonomous University of Mexico (UNAM). A sample preparation chemistry laboratory equipped with computer controlled graphitization equipment (AGEIII) has also been established. Together both facilities constitute the LEMA (Laboratorio de Espectrometria de Masas con Aceleradores) first of its kind in Mexico. High sensitivity characterization of the concentration in a sample of C-14 as well as Be-10, Al-26, I-129 and Pu are now possible. Since the demand for C-14 dating is far more abundant, a data analysis program was developed in the cross-platform programming language Python in order to calculate radiocarbon age. Results from installation, acceptance tests and the first results of C-14 analyses of reference materials prepared in our own facility are presented.

• 出版日期2014-7-15