Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-26T19:10:14.596Z Has data issue: false hasContentIssue false
  • English
  • Français

Operation of the NSF-Arizona Accelerator Facility for Radioisotope Analysis and Results from Selected Collaborative Research Projects

Published online by Cambridge University Press:  18 July 2016

T W Linick ,
A J T Jull ,
L J Toolin  and
D J Donahue
T W Linick
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, Department of Physics, University of Arizona, Tucson, Arizona 85721
A J T Jull
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, Department of Physics, University of Arizona, Tucson, Arizona 85721
L J Toolin
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, Department of Physics, University of Arizona, Tucson, Arizona 85721
D J Donahue
Affiliation:
NSF-Arizona Accelerator Facility for Radioisotope Analysis, Department of Physics, University of Arizona, Tucson, Arizona 85721
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Radiocarbon dating at the Arizona accelerator facility has improved substantially in the last three years. Since starting to use graphite targets (see Jull et al, 1986), we have been able to obtain routinely a precision of ca ± 1% (ca 80 yr) for relatively modern material. Our routine technique of tuning and operating the tandem accelerator mass spectrometer (TAMS) and our method of calculating 14C results are discussed in detail. Data on activity ratios of oxalic acid-II/oxalic-I are presented. Examples of the wide variety of projects on which we have collaborated are given. Brief discussions of three such projects are presented for our colleagues who were unable to attend this conference: an Arizona Indian archaeologic project, a study of megafaunal extinctions, and a study of the growth of phosphorite nodules on the sea floor off the Peruvian coast.

Type
IV. Methods and Applications
Information
Radiocarbon , Volume 28 , Issue 2A , 1986 , pp. 522 - 533
Copyright
Copyright © The American Journal of Science 

References

Burnett, W C, Beers, M J and Roe, K K, 1982, Growth rates of phosphate nodules from the continental margin off Peru: Science, v 215, p 1616–1618.Google Scholar
Donahue, D J, Zabel, T H, Jull, A J T and Damon, P E, 1983, Results of tests and measurements from the NSF Regional Accelerator Facility for Radioisotope Dating, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 719–728.Google Scholar
Donahue, D J, Jull, A J T and Zabel, T H, 1984, Results of radioisotope measurements at the NSF-University of Arizona, tandem accelerator mass spectrometer facility: Nuclear Instruments & Methods, v B5, p 162–166.Google Scholar
Jull, A J T, Donahue, D J, Hatheway, A, Linick, T W and Toolin, L J, 1985, Production of graphite targets by deposition from GO/H2 for precision accelerator 14C measurements, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 12th, Proc: Radiocarbon, this issue.Google Scholar
Klouda, G A, Currie, L A, Donahue, D J and Jull, A J T, 1986, Urban atmospheric 14CO and CH4 measurements by accelerator mass spectrometry, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 12th, Proc: Radiocarbon, this issue.Google Scholar
Levin, I, Kromer, B, Schoch-Fischer, H, Bruns, M, Münnich, M, Dietrich, B, Vogel, J C and Münnich, KO, 1985, 25 years of tropospheric 14C observations in central Europe: Radiocarbon, v 27, no. 1, p 1–19.CrossRefGoogle Scholar
Long, A, Donahue, D J, Jull, A J T, and Linick, T W (ms), 1985a, Tandem accelerator dating of archaeological cultigens: Paper presented at Internatl 14C conf, 12th, Trondheim, Norway, June 24–28.Google Scholar
Long, A and Martin, P S, 1974, Death of American ground sloths: Science, v 186, p 638–640.CrossRefGoogle Scholar
Long, A, Murphy, E, Thurman, E M, Davis, S N, Malcolm, R L, Donahue, D J, Jull, A J T and Linick, T W (ms), 1985b, Tandem accelerator 14C analyses on dissolved organic matter in ground water: Paper presented at Internatl 14C conf, 12th, Trondheim, Norway, June 24–28.Google Scholar
Mann, W B, 1983, An international reference material for radiocarbon dating, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 519–528.Google Scholar
Martin, P S, 1984, Prehistoric overkill: the global model, in Martin, P S, and Klein, R G, eds, Quaternary extinctions—a prehistoric revolution: Tucson, Univ Arizona Press n 345–403.Google Scholar
Martin, P S, Thompson, R S, and Long, A, 1986, in Mead, J I and Meltzer, D J, eds, Environments and extinctions: man in late glacial North America: Univ Maine, Center for the Study of Early Man, Orono, Maine, in press.Google Scholar
Mead, J I, Martin, P S, Euler, R C, Long, A, Jull, A J T, Toolin, L J, Donahue, D J and Linick, T W, 1986, Extinction of Harrington's mountain goat, in Natl Acad Science USA, Proc: v 83, p 836–839.Google Scholar
Nydal, R and Lövseth, K, 1983, Tracing bomb 14C in the atmosphere 1962–1980: Jour Geophys Research, v 88, no. C6, p 3621–3642.Google Scholar
Schiffer, M B, 1982, Hohokam chronology: an essay on history and method, in McGuire, R M and Schiffer, M B, eds, Hohokam and Patayan, prehistory of southwestern Arizona: New York, Academic Press.Google Scholar
Stafford, T W Jr, Jull, A J T, Donahue, D J, Brendel, K, and Duhamel, R (ms), 1985, Studies on the radiocarbon dating of fossil bones by accelerator mass spectrometry and the stable carbon and nitrogen isotopic composition of dated organic fractions: Paper presented at Internatl 14C conf, 12th, Trondheim, Norway, June 24–28.Google Scholar
Stuiver, M, 1982, A high-precision calibration of the AD radiocarbon time scale: Radiocarbon, v 24, no. 1, p 1–26.CrossRefGoogle Scholar
Stuiver, M, 1983, International agreements and the use of the new oxalic acid standard, in Stuiver, M and Kra, R S, eds, Internatl 14G conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 793–795.Google Scholar
Tucker, A B, Tinsley, J C, Atwater, B F, Trumm, D A, Robinson, S W, Stein, R E, Donahue, D J and Jull, A J T (ms), 1985, Accelerator dating of detrital and burned-in-place charcoal from the alluvium of Los Gatos Creek: Paper presented at Internatl 14C conf, 12th, Trondheim, Norway, June 24–28.Google Scholar