Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Ronald H. Fleming"'
Publikováno v:
Analytica Chimica Acta. 310:485-492
High resolution time-of-flight secondary ion mass spectrometry (HR TOF-SIMS) is a powerful surface analytical method. For complex samples, this technique may yield intricate spectra that are difficult to interpret visually. Chemometric methods are us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84e22eefd5fa313b9f496f54d409c72e
https://doi.org/10.1016/0003-2670(95)00149-t
https://doi.org/10.1016/0003-2670(95)00149-t
Autor:
Ronald H. Fleming, Barbara M. Bekken
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 143:213-224
Secondary ion mass spectrometry techniques for imaging measurements of 34S/32S isotope ratios and quantitative trace element concentrations in pyrite mineral grains have been demonstrated. Test samples show that the 34S/32S isotope ratios are constan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::687c33faf613cdf15fbaa941aaa67ab8
https://doi.org/10.1016/0168-1176(94)04138-w
https://doi.org/10.1016/0168-1176(94)04138-w
Autor:
Ronald H. Fleming, G. David Mendenhall
Publikováno v:
Review of Scientific Instruments. 64:3425-3429
The combination of a variable wavelength interference filter and a position‐sensitive photon‐counting detector provide spectra of low‐intensity luminescence. This method has been demonstrated on two luminescent materials, europium (II)‐doped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4953325aea0dd100b5c3f531ba255336
https://doi.org/10.1063/1.1144263
https://doi.org/10.1063/1.1144263
Publikováno v:
Review of Scientific Instruments. 64:420-429
Both the standard resistive anode encoder (RAE) position sensitive ion detector and a new faster version have been adapted for use with CAMECA IMS‐3f/4f imaging secondary‐ion mass spectroscopy instruments. Each detector includes a dual microchann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db58021440a5d9df63c52568f8a34e3e
https://doi.org/10.1063/1.1144211
https://doi.org/10.1063/1.1144211
Publikováno v:
Polymer Testing. 11:357-372
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3244e87c31f0cd85b94db0864738480e
https://doi.org/10.1016/0142-9418(92)90004-u
https://doi.org/10.1016/0142-9418(92)90004-u
Autor:
Angela Y. Craig, Ronald H. Fleming
Publikováno v:
Polymer Degradation and Stability. 37:173-180
Autoxidation induced polymer chemiluminescence has been measured with a position-sensitive, photon-counting detector to produce chemiluminescence images. The chemiluminescence intensity varies over the surfaces of some polymer samples. The localized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9131fbd1397d05649e2ff3b9feb4b8d1
https://doi.org/10.1016/0141-3910(92)90081-f
https://doi.org/10.1016/0141-3910(92)90081-f
Publikováno v:
Polymer Testing. 10:399-407
A chemiluminescence instrument is described which is designed for very rapid analyses (less than 20s) of specimens in the solid state. A number of selected experiments performed with this instrument are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a83a110fc6ddbb42676c95e239924dd
https://doi.org/10.1016/0142-9418(91)90016-q
https://doi.org/10.1016/0142-9418(91)90016-q
Autor:
Y. Alan Liu, Ronald H. Fleming
Publikováno v:
Review of Scientific Instruments. 64:1661-1662
Detector dead time in electron multiplier ion counting applications has been reduced. A first‐in first‐out buffer allows a traditional ion counting system to accept pulses 10 ns apart. Lower dead time (10 ns) results from elimination of electrica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2ad14ba87097b8831902d2aaccbade7
https://doi.org/10.1063/1.1144464
https://doi.org/10.1063/1.1144464
Publikováno v:
Journal of the American Chemical Society. 96:7738-7741
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::891df8113a951e05d7d0a8530c908714
https://doi.org/10.1021/ja00832a020
https://doi.org/10.1021/ja00832a020
Autor:
Ronald H. Fleming, Vincent M. Miskowski, George S. Hammond, David S. Kliger, Allen J. Twarowski
Publikováno v:
Inorganic Chemistry. 17:1056-1059
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e854bb7eb32e23ba11706c519415fd17
https://doi.org/10.1021/ic50182a051
https://doi.org/10.1021/ic50182a051