Zobrazeno 1 - 10 of 11 pro vyhledávání: '"T. A. D. Brown"'
1
Properties of 23Na implanted targets
Autor: Christopher Wrede, Derek Storm, K. Deryckx, K. A. Snover, A. García, T. A. D. Brown, A. L. Sallaska
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 267:3302-3308
Ten types of 23Na implanted targets have been fabricated for the purposes of investigating the effects of proton beam bombardment on the implanted sodium distribution. Targets were implanted at energies of ENa = 10–30 keV using copper, tantalum, an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::603969b9a64b82e8f1ed3bf2cd88331f
https://doi.org/10.1016/j.nimb.2009.06.122
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2
First excited12+state in9B
Autor: B. R. Fulton, N. I. Ashwood, D. Groombridge, N. M. Clarke, S. P. Fox, V. F. E. Pucknell, C. N. Timis, V. A. Ziman, David Weisser, N. Curtis, W. N. Catford, D. L. Watson, T. A. D. Brown, D. Mahboub, T. D. Baldwin
Publikováno v: Physical Review C. 86
Evidence has been found for a broad unbound state near 1 MeV excitation in ${}^{9}$B that is a candidate for the long-disputed ${\frac{1}{2}}^{+}$ mirror of the unbound 1.68 MeV state in ${}^{9}$Be. Reactions of ${}^{6}$Li${+}^{6}$Li were studied wit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73d6a031f429b4a39a640a9ddcde7e40
https://doi.org/10.1103/physrevc.86.034330
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4
Absolute determination of theNa22(p,γ)Mg23reaction rate in novae
Autor: A. García, D. A. Hutcheon, Christof Vockenhuber, T. A. D. Brown, D.F. Ottewell, J. A. Caggiano, Derek Storm, K. A. Snover, Christopher Wrede, Jordi José, L. Buchmann, A. L. Sallaska, Chris Ruiz
Publikováno v: Physical Review C. 83
displayed minimal degradation over a ∼20 C bombardment as a result of protective layers. We avoided the need to know the absolute stopping power, and hence the target composition, by extracting resonance strengths from excitation functions integrat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4c36aa6b8ecf6fc06abf593b85f5c90
https://doi.org/10.1103/physrevc.83.034611
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5
Intra-Annual Variability of the Radiocarbon Content of Corals from the Galapagos Islands
Autor: F H Schmidt, G W Farwell, Pieter Meiert Grootes, T. A. D. Brown, Minze Stuiver
Publikováno v: Radiocarbon. 35:245-251
We report AMS 14C measurements on subannual samples of coral from the Galapagos Islands that span the period, 1970–1973. Both the major 1972 El Niño/Southern Oscillation event and intra-annual changes in regional upwelling of 14C-depleted waters a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d279f119e7c0d56cab7546031db086c
https://doi.org/10.1017/s0033822200064912
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7
Direct Measurements ofNa22(p,γ)Mg23Resonances and Consequences forNa22Production in Classical Novae
Autor: Christopher Wrede, Christof Vockenhuber, D.F. Ottewell, A. García, Derek Storm, Chris Ruiz, K. A. Snover, L. Buchmann, A. L. Sallaska, J. A. Caggiano, T. A. D. Brown, D. A. Hutcheon
Publikováno v: Physical Review Letters. 105
The radionuclide 22 Na is a potential astronomical observable that is expected to be produced in classical novae in quantities that depend on the thermonuclear rate of the 22 Na(p, γ) 23 Mg reaction. We have measured the strengths of low-energy 22 N
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::daaf403669b64dc1c226b5eb5a4c636b
https://doi.org/10.1103/physrevlett.105.152501
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8
Direct measurements of ²²Na(p,γ)²³Mg resonances and consequences for ²²Na production in classical novae
Autor: A L, Sallaska, C, Wrede, A, García, D W, Storm, T A D, Brown, C, Ruiz, K A, Snover, D F, Ottewell, L, Buchmann, C, Vockenhuber, D A, Hutcheon, J A, Caggiano
Publikováno v: Physical review letters. 105(15)
The radionuclide 22Na is a potential astronomical observable that is expected to be produced in classical novae in quantities that depend on the thermonuclear rate of the 22Na(p,γ)23Mg reaction. We have measured the strengths of low-energy 22Na(p,γ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7a5a22f830b977bd4b196f1e585190c1
https://pubmed.ncbi.nlm.nih.gov/21230896
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9
The University of Washington AMS system: a six-year technical update
Autor: T. A. D. Brown, F H Schmidt, Pieter Meiert Grootes, G W Farwell
Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 52:229-232
We last described our system in detail at the third AMS conference in 1984. Since then numerous technical improvements have been made which have enhanced the stability of the system, and produced larger and sharper beams; the 14C beam is now transmit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3f64aaff33c7aa530f5e1bfcdcb760c
https://doi.org/10.1016/0168-583x(90)90411-m
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10
Decay studies for states inBe9up to 11 MeV: Insights into then+Be8andα+He5cluster structure
Autor: C. N. Timis, S. P. Fox, P. McEwan, N. M. Clarke, D. L. Watson, D. Groombridge, Martin Freer, David Weisser, N. I. Ashwood, T. D. Baldwin, N. Curtis, D. Mahboub, V. A. Ziman, W. N. Catford, Shenaz Ahmed, P. Papka, T. A. D. Brown, B. R. Fulton
Publikováno v: Physical Review C. 76
An experiment was performed to study the $^{9}\mathrm{Be}$($^{6}\mathrm{Li}$,$^{6}\mathrm{Li}$)$^{9}\mathrm{Be}$${}^{*}$ $\ensuremath{\rightarrow}\ensuremath{\alpha}+\ensuremath{\alpha}+n$ reaction. This experiment was designed to study the breakup o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c4568d8acf04636a2d012a7ef100eab
https://doi.org/10.1103/physrevc.76.054605
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