Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Dietrich H. Vincent"'
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 180:263-269
An instrument for prompt gamma-ray activation analysis is now in operation at the NIST Cold Neutron Research Facility (CNRF). The cold neutron beam is relatively free of contamination by fast neutrons and reactor gamma rays, and the neutron fluence r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb4e7da99efdf2bc9ce3dc05e5d6caf
https://doi.org/10.1007/bf02035914
https://doi.org/10.1007/bf02035914
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 180:271-275
By irradiating with cold neutrons and avoiding hydrogenous materials of construction, we have developed a PGAA instrument at the Cold Neutron Research Facility at NIST with hydrogen detection limits in the microgram range in many materials. Quantitie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20a07e47c1846210a5a063dc025e1339
https://doi.org/10.1007/bf02035915
https://doi.org/10.1007/bf02035915
Autor:
D. D. Clark, Robert R. Greenberg, D. L. Anderson, Dietrich H. Vincent, C. A. Stone, Richard M. Lindstrom, Elizabeth A. Mackey, Rolf Zeisler
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 167:121-126
An instrument for neutron capture prompt gamma-ray activation analysis (PGAA) has been constructed as part of the Cold Neutron Research Facility at the 20 MW National Institute of Standards and Technology Research Reactor. The neutron fluence rate (t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::564728bc228e6a5922c531e828407c8f
https://doi.org/10.1007/bf02035470
https://doi.org/10.1007/bf02035470
Autor:
Kenan Unlu, Dietrich H. Vincent
Publikováno v:
Nuclear Science and Engineering. 110:386-393
Helium trapping and release are studied for the nickel-rich amorphous alloys Ni75.1 Cr14.0-P10.1C0.08, Ni63.5Zr36.5, and Ni87.7P12.3. Helium-3 is introduced into the samples by implantation at 150-keV energy. The depth distribution of the implanted h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2c474f87f746311370a124ae62829b0
https://doi.org/10.13182/nse92-a23912
https://doi.org/10.13182/nse92-a23912
Autor:
Kenan Unlu, Dietrich H. Vincent
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 299:606-609
The behavior of 3He in the amorphous alloys Ni75.1Cr14P10.1C0.08, Ni63.5Zr36.5 and Ni87.7P12.3 is investigated. The samples were implanted with 150 keV 3He ions with doses of 1 × 1016 and 5 × 10163He/cm2. The samples were isochronally annealed at s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4532ad7bf952bd9a43ba73f0facd426e
https://doi.org/10.1016/0168-9002(90)90854-y
https://doi.org/10.1016/0168-9002(90)90854-y
Publikováno v:
Journal of Nuclear Materials. 98:259-269
Hydrogen was implanted in samples of single crystal molybdenum, many of which had been previously damaged by “He at 18 or 150 keV. The hydrogen implantations were at low energies, usually at 10 keV. Depth profiles (up to 200 nm) of the trapped hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b39c58670b6e87e3adcbb04f09e7aad
https://doi.org/10.1016/0022-3115(81)90152-5
https://doi.org/10.1016/0022-3115(81)90152-5
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 17:147-155
Iterative methods for determining deconvolued depth profiles from measured neutron depth profiling (NDP) energy spectra are presented. The methods account for energy broadening caused by system noise, energy straggling, multiple small angle scatterin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9274ceca4522ab5fdb062a883e82052a
https://doi.org/10.1016/0168-583x(86)90077-7
https://doi.org/10.1016/0168-583x(86)90077-7
Autor:
T. E. Sampson, Dietrich H. Vincent
Publikováno v:
Nuclear Instruments and Methods. 95:563-569
We report an absolute measurement of the efficiency of a BF 3 counter in narrow beam geometry in the energy range frame 0.024 eV to 0.111 eV. Agreement with calculated efficiency values is excellent. No significant end effects are noted. The basic fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f73b741570552d536df61d3614b8fe62
https://doi.org/10.1016/0029-554x(71)90560-x
https://doi.org/10.1016/0029-554x(71)90560-x
Publikováno v:
Journal of Physics and Chemistry of Solids. 30:1189-1195
The Mossbauer emission spectra of Te 125 in PbTe, Te metal, and TeO 2 have been measured following neutron capture in Te 124 . Mossbauer data for each sample were taken after the source irradiation and following thermal annealing. The irradiation con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4711e1d188ddcdee4cca2db0e80d0c52
https://doi.org/10.1016/0022-3697(69)90376-x
https://doi.org/10.1016/0022-3697(69)90376-x
Publikováno v:
Radiation Effects. 51:251-252
Helium ions of about 100 keV energy were implanted into copper samples at room temperature. Implantation doses were between 3.7 × 1016 and 6.3 s× 1016He/cm2. The helium distributions were analyzed in a thermal neutron beam as a function of annealin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b42eb3bbf0a2f37b3e997d67957b03b
https://doi.org/10.1080/00337578008210008
https://doi.org/10.1080/00337578008210008