Zobrazeno 1 - 10
of 19
pro vyhledávání: '"L K, Fifield"'
Autor:
M. Struck, J. D. Jansen, T. Fujioka, A. T. Codilean, D. Fink, R.-H. Fülöp, K. M. Wilcken, D. M. Price, S. Kotevski, L. K. Fifield, J. Chappell
Publikováno v:
Earth Surface Dynamics, Vol 6, Pp 329-349 (2018)
Sediment-routing systems continuously transfer information and mass from eroding source areas to depositional sinks. Understanding how these systems alter environmental signals is critical when it comes to inferring source-area properties from the
Externí odkaz:
https://doaj.org/article/4bb628e1a46744a9a804bffaeedf5e65
Autor:
De Cesare, M, L K, Fifield, Sabbarese, C, S G, Tims, De Cesare, N, D'Arco, A, D’Onofrio, A, A M, Esposito, Gialanella, L, Mancini, F, Petraglia, A, Roca, V, Terrasi, F
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 294:152-159
Accelerator mass spectrometry (AMS) is presently the most sensitive technique for the measurement of long-lived actinides, e.g. 236U and 239Pu. A new actinide line is in operation at the Center for Isotopic Research on Cultural and Environmental heri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f47975b14ded4b79e23ca1f861d23a22
https://doi.org/10.1016/j.nimb.2012.05.020
https://doi.org/10.1016/j.nimb.2012.05.020
Publikováno v:
Journal of environmental radioactivity.
A slice from a Porites Lutea coral core collected inside the Enewetak Atoll lagoon, within 15 km of all major nuclear tests conducted at the atoll, was analysed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::85db9066133bee055e975cd316fb1779
https://pubmed.ncbi.nlm.nih.gov/28526526
https://pubmed.ncbi.nlm.nih.gov/28526526
Autor:
A, Wallner, M, Bichler, K, Buczak, R, Dressler, L K, Fifield, D, Schumann, J H, Sterba, S G, Tims, G, Wallner, W, Kutschera
Publikováno v:
Physical review letters. 114(4)
In order to resolve a recent discrepancy in the half-life of 60Fe, we performed an independent measurement with a new method that determines the 60Fe content of a material relative to 55Fe (t1/2=2.744 yr) with accelerator mass spectrometry. Our resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d156d8dd60a0c08f0134746afba64c04
https://pubmed.ncbi.nlm.nih.gov/25679883
https://pubmed.ncbi.nlm.nih.gov/25679883
Autor:
S. J. King, C. Oldham, J. F. Popplewell, R. S. Carling, J. P. Day, L. K. Fifield, R. G. Cresswell, Kexin Liu, M. L. di Tada
Publikováno v:
The Analyst. 122:1049-1055
Studies of the biological chemistry of aluminium can gain significantly from the use of the long-lived isotope 26Al as a tracer, although the cost of the isotope often precludes its determination by radiochemical counting techniques. Accelerator mass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73ebd4ff801061e87e50604fe4023524
https://doi.org/10.1039/a702002c
https://doi.org/10.1039/a702002c
Autor:
Tomoko Ohta, K. Miyakawa, T. Hasegawa, L. K. Fifield, T. Kubota, Yasunori Mahara, M. A. Habermehl
Publikováno v:
EPJ Web of Conferences, Vol 24, p 03002 (2012)
Groundwater contains dissolved He, and its concentration increases with the residence time of the groundwater. Thus, if the 4 He accumulation rate is constant, the dissolved 4 He concentration in ground-water is equivalent to the residence time. Sinc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1246ca0d04b7f8f7a95eead546d7a35c
https://doaj.org/article/1bd98c4f7ab24edf94a8c954272db1d3
https://doaj.org/article/1bd98c4f7ab24edf94a8c954272db1d3
Publikováno v:
Radiation research. 152
Currently, most methods for the quantitative assessment of (239)Pu have minimum detection levels (25 microBq for alpha-particle spectrometry) that are much higher than the levels of this isotope in many human bioassay and environmental samples. Accor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2e14df9102c9830a3f93bfd4eb9d8882
https://pubmed.ncbi.nlm.nih.gov/10564928
https://pubmed.ncbi.nlm.nih.gov/10564928
Publikováno v:
Physical Review C. 12:567-571
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52f80d5688160c48719339c94f9bf0f3
https://doi.org/10.1103/physrevc.12.567
https://doi.org/10.1103/physrevc.12.567
Publikováno v:
Journal of Physics G: Nuclear Physics. 5:575-584
The mean lives of three excited states have been measured by bombarding an implanted 4He target with a 28Si beam and observing the (particle coincident) gamma -ray line-shapes at 0 degrees . The results are: (in 28Si) 1778 keV level, tau m=697+or-39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c81b36043d46793ff0f80350cef87799
https://doi.org/10.1088/0305-4616/5/4/021
https://doi.org/10.1088/0305-4616/5/4/021