Výsledky vyhledávání - "J. D. Hemingway"

Akademický článek

Technical note: An inverse method to relate organic carbon reactivity to isotope composition from serial oxidation

Autor: J. D. Hemingway, D. H. Rothman, S. Z. Rosengard, V. V. Galy

Publikováno v: Biogeosciences, Vol 14, Pp 5099-5114 (2017)

Serial oxidation coupled with stable carbon and radiocarbon analysis of sequentially evolved CO2 is a promising method to characterize the relationship between organic carbon (OC) chemical composition, source, and residence time in the environment

Externí odkaz: https://doaj.org/article/0d25a0b1e34f483eaf69dcbb9eac5aa8

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The Distribution of Radionuclides between the Dissolved and Particulate Phases of a Comtaminated Freshwater Stream

Autor: S. R. Jones, R. N. Murdock, Michael S. Johnson, J. D. Hemingway

Publikováno v: Environmental Technology. 16:1-12

Streamwater concentrations of the radionuclides 137Cs, 241Am and 239,240Pu from a contaminated freshwater stream showed significant relationships between total concentration and flow rate. When total concentrations were divided into their dissolved a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b4b89b5a7d090eb2617b8aef5e6fb7d6
https://doi.org/10.1080/09593331608616240

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Physicochemical characteristics of radionuclides associated with sediment from a contaminated fresh water stream

Autor: S. R. Jones, J. D. Hemingway, M.S. Johnson, R Murdoch

Publikováno v: Environmental Technology. 14:639-648

The relationships between concentrations of 241Am, 137Cs and 239,240Pu and sediment particle size and geochemical species were examined for sediments taken from a freshwater stream contaminated by radioactive effluent from a low‐level waste disposa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::986790ac836627323fccb9e0a62c9448
https://doi.org/10.1080/09593339309385333

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Investigations towards an improved Marinelli beaker for gamma detectors

Autor: J. D. Hemingway

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry Articles. 99:299-306

A spherical container of the Marinelli type has been constructed. The efficiency of counting using this on a germanium detector has been compared to the efficiencies of other geometrical arrangements as a function of energy. The sphere shows the best

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38ce9a01ac15feaa99bd8355ec117f32
https://doi.org/10.1007/bf02037589

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Search for long-lived superheavy elements in the reaction systemU238+ 9.6-MeV/nucleonCu63,65

Autor: A.H. Boos, G.W.A. Newton, M. R. Chandratillake, R. Brandt, R. A. Esterlund, P. Patzelt, I. S. Grant, D. Molzahn, J. D. Hemingway, P. Vater

Publikováno v: Physical Review C. 15:319-324

A thick /sup 238/U target has been bombarded with /sup 63//sub,//sup 65/Cu ions at an incident beam energy of 9.6 MeV/nucleon. After radiochemical separations into CdS, HgS, and La-oxalate fractions, a search for evidence of the production of superhe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1172af750cade72fdd64b90fd334753
https://doi.org/10.1103/physrevc.15.319

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Search for superheavy elements in the reaction238U+9.6 MeV/N63,65Cu

Autor: P. Patzelt, D. Molzahn, R. A. Esterlund, P. Vater, A.H. Boos, R. Brandt, I. S. Grant, G. W. A. Newton, J. D. Hemingway, M. R. Chandratillake

Publikováno v: Journal of Radioanalytical Chemistry. 30:17-23

According to calculations of NIX and others, the formation of superheavy elements might occur in heavy-ion reaction systems such as the one under investigation in the present work i.e.,238U+63,65Cu at 9.6 MeV/nucleon. Since previous experiments have

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ec878f996313ad9ca6a6661ec0890ad
https://doi.org/10.1007/bf02516615

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The determination of the cross sections for the reactions 27 Al( n , α ) and 56 Fe( n , p ) for 14 MeV neutrons by an absolute method

Autor: J. D. Hemingway, R. H. James, E. B. M. Martin, Gail Roberts Martin

Publikováno v: Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 292:180-192

Measurements of the cross sections for the reactions 27 Al( n , α ) 24 Na and 56 Fe( n, p ) 56 Mn for neutrons of energy 13.5 ± 0.1 MeV have been made by a radioactivation method. The neutron flux was determined by a variant of the 'associated part

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07c453fd8951e123024e673a8c8ab4db
https://doi.org/10.1098/rspa.1966.0127

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