Zobrazeno 1 - 10
of 1 590
pro vyhledávání: '"G D W Smith"'
Improved methods are described for the preparation of field ion microscope specimens from single-crystal silicon. High-resolution mass spectra of silicon have been obtained for the first time using the pulsed laser atom probe technique. The growth of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cd0810993a52f3529decec61b324179
https://doi.org/10.1201/9781003069614-17
https://doi.org/10.1201/9781003069614-17
Autor:
G D W Smith, T J Godfrey
A modification to the conventional mode of operation of a mercury-wetted reed relay high-voltage pulse generator is described which permits the production of nanosecond rise time pulses with operating frequencies of up to 1 kHz and applied voltages o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a574b16bb35bd9757d8a26aa6fb5400
https://doi.org/10.1088/0022-3735/13/12/014
https://doi.org/10.1088/0022-3735/13/12/014
We have developed a new method to estimate the permeation coefficient of gases through polymer membranes. A fixed volume of gas is put in a gas cell and introduced into ultrahigh vacuum. After positioning the gas cell to face a quadrupole mass spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a870a6a90dec44a54a423c53bf31601e
https://ora.ox.ac.uk/objects/uuid:09ed7c80-3faf-4e31-8a0e-bd924f60a4a6
https://ora.ox.ac.uk/objects/uuid:09ed7c80-3faf-4e31-8a0e-bd924f60a4a6
Autor:
G. D. W. Smith, H.-J Kosmella, G. A. D. Briggs, Y. Tsukahara, H. Nörenberg, T. Miyamoto, Victor M. Burlakov
A mass spectrometric method has been used to study transmission of noble gases (He, Ne, Ar, Kr, Xe) through thin polymer membranes of OPP and PET. The transmission of gas originating from a confined volume in a gas cell through the membrane is measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3baa3f3618163d1ddc499718fdfe2c3d
https://ora.ox.ac.uk/objects/uuid:1c614378-f64d-4709-a81d-170487d0b290
https://ora.ox.ac.uk/objects/uuid:1c614378-f64d-4709-a81d-170487d0b290
Publikováno v:
Scientific Reports
Understanding the corrosion of uranium is important for its safe, long-term storage. Uranium metal corrodes rapidly in air, but the exact mechanism remains subject to debate. Atom Probe Tomography was used to investigate the surface microstructure of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::7c9d0ea256eedbdc2ba89b26a4c1cce6
https://pubmed.ncbi.nlm.nih.gov/27403638
https://pubmed.ncbi.nlm.nih.gov/27403638
Publikováno v:
Philosophical Magazine A. 80:2489-2508
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fe6a798e097cda1baa5f3be28a00188
https://doi.org/10.1080/01418610050179278
https://doi.org/10.1080/01418610050179278
Publikováno v:
Journal of microscopy. 244(2)
Atom probe tomography is an accurate analytical and imaging technique which can reconstruct the complex structure and composition of a specimen in three dimensions. Despite providing locally high spatial resolution, atom probe tomography suffers from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9c5f8b80411fb531b721501d459eeea7
https://pubmed.ncbi.nlm.nih.gov/22004277
https://pubmed.ncbi.nlm.nih.gov/22004277
Publikováno v:
Materials Science and Technology. 8:537-540
A field ion atom probe study has been made of a low carbon steel after furnace cooling and rapid quenching from 700°C. Marked segregation of carbon to the boundaries was observed after furnace cooling, but not after rapid quenching. From comparison
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a5829264e5d1c5221ac30dcf0585362
https://doi.org/10.1179/mst.1992.8.6.537
https://doi.org/10.1179/mst.1992.8.6.537
Publikováno v:
VACUUM 14th International Vacuum Congress/10th International Conference on Solid Surfaces/5th International Conference on Nanometre-Scale Science and Technology/10th International Conference on Quantitative Surface Analysis. 53(1-2)
A new method to estimate permeation coefficients for small sized polymer samples is introduced. It uses a mass spectrometer to measure the partial pressure of gas permeating from an enclosed volume of gas as a function of time. In agreement with pred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d58787fcdc68ddcc3c58e738bee74d1
http://ora.ox.ac.uk/objects/uuid:0d0fe7b0-3a76-4b39-9376-95920885329b
http://ora.ox.ac.uk/objects/uuid:0d0fe7b0-3a76-4b39-9376-95920885329b