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Journal Article
B. E. Longworth, Burton, J. R., Pendleton, S. L., Moser, S. D., Roberts, M. L., and Kurz, M. D., Radiocarbon measurement of CO2 from carbonate minerals using a hybrid gas ion source with an open split interface, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 531, pp. 49–55, 2022.
J. D. Hlavenka, Abrams, H., Roberts, M. L., Longworth, B. E., and Fallon, S., Improved C− efficiency and ion beam currents by modifying SNICS cathode material, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 439, pp. 90 - 93, 2019.
B. E. Longworth, von Reden, K. F., Long, P., and Roberts, M. L., A high output, large acceptance injector for the NOSAMS Tandetron AMS system, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 361, pp. 211-216, 2015.
B. E. Longworth, Robinson, L. F., Roberts, M. L., Beaupré, S. R., Burke, A., and Jenkins, W. J., Carbonate as sputter target material for rapid C-14 AMS, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 294, pp. 328-334, 2013.
M. C. Lardie Gaylord, Longworth, B. E., Murphy, K., Cobb, C., and McNichol, A. P., Annual radiocarbon measurements in a century-old European beech tree (Fagus sylvatica) from coastal northeastern North America, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. 456, pp. 264-270, 2019.