36 Cl measurements at the Zürich AMS Facility

• Published in: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• Main Authors: Synal, H.-A., Beer, J., Bonani, G., Lukasczyk, Ch., Suter, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 1994
• Subjects: Arctic; Dye 3; Dye-3
• Online Access: https://doi.org/10.1016/0168-583X(94)95981-1

During the past few years several improvements of the 36 Cl detection system at the Zürich AMS facility have been made. The high mass separation capability and the optimised detection system provide sufficient sensitivity to perform 36 Cl measurements at a beam energy of less than 50 MeV. Background ratios of less than 10 -15 can be achieved under routine operating conditions. A throughput of 50 samples per day makes it possible to contribute to projects where large numbers of samples are required. The main application of 36 Cl at Zürich is the analysis of Arctic ice cores. From the three different locations, Milcent station (70°18'N,44°35'W), Dye-3 station (65°11'N,43°49'W) and Summit (72°34'N,37°38'W), ice cores have been investigated. The present status of these projects is discussed.