Search Results - "SAVINA, M. R"

Resonance ionization of zirconium by Trappitsch, R., Shulaker, D. Z., Ong, W.-J., Savina, M. R., Isselhardt, B. H.

“…Measuring the isotopic composition of trace Zr in presolar stardust grains allows us to study the environment of slow neutron-capture nucleosynthesis in…”
Get full text

Improving Precision in Resonance Ionization Mass Spectrometry: Influence of Laser Bandwidth in Uranium Isotope Ratio Measurements by Isselhardt, B. H, Savina, M. R, Knight, K. B, Pellin, M. J, Hutcheon, I. D, Prussin, S. G

“…The use of broad bandwidth lasers with automated feedback control of wavelength was applied to the measurement of 235U/238U ratios by resonance ionization mass…”
Get full text

Gems at the galactic cosmic-ray source by WESTPHAL, A. J, DAVIS, A. M, LEVINE, J, PELLIN, M. J, SAVINA, M. R

“…Issue Title: The Composition of Matter Galactic cosmic rays probably predominantly originate from shock-accelerated gas and dust in superbubbles. It is usually…”
Get full text

Constraining the 13C neutron source in AGB stars through isotopic analysis of trace elements in presolar SiC by Barzyk, J. G., Savina, M. R., Davis, A. M., Gallino, R., Gyngard, F., Amari, S., Zinner, E., Pellin, M. J., Lewis, R. S., Clayton, R. N.

“…— Analyses of the isotopic compositions of multiple elements (Mo, Zr, and Ba) in individual mainstream presolar SiC grains were done by resonant ionization…”
Get full text

Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS by Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., Hutcheon, I. D.

“…Resonance ionization mass spectrometry (RIMS) holds the promise of rapid, isobar-free quantification of actinide isotope ratios in as-received materials (i.e…”
Get full text

Selective separation of C60 and C70 fullerenes on tetraphenylporphyrin-silica gel stationary phases by Kibbey, C. E, Savina, M. R, Parseghian, B. K, Francis, A. H, Meyerhoff, M. E

Get full text

Extinct Technetium in Silicon Carbide Stardust Grains: Implications for Stellar Nucleosynthesis by Savina, Michael R., Davis, Andrew M., Tripa, C. Emil, Pellin, Michael J., Gallino, Roberto, Lewis, Roy S., Amari, Sachiko

“…The isotopic composition of ruthenium (Ru) in individual presolar silicon carbide (SiC) stardust grains bears the signature of s -process nucleosynthesis in…”
Get full text

Analyzing individual presolar grains with CHARISMA by Savina, Michael R., Pellin, Michael J., Tripa, C.Emil, Veryovkin, Igor V., Calaway, Wallis F., Davis, Andrew M.

“…Isotopic analysis of heavy elements in individual stardust grains is important in testing and constraining theories of stellar nucleosynthesis. These analyses…”
Get full text

Barium isotopes in individual presolar silicon carbide grains from the Murchison meteorite by Savina, Michael R., Davis, Andrew M., Tripa, C.Emil, Pellin, Michael J., Clayton, Robert N., Lewis, Roy S., Amari, Sachiko, Gallino, Roberto, Lugaro, Maria

“…Barium isotopic compositions of single 2.3–5.3 μm presolar SiC grains from the Murchison meteorite were measured by resonant ionization mass spectrometry…”
Get full text

Correction to: Resonance ionization of zirconium by Trappitsch, R., Shulaker, D. Z., Ong, W.-J., Savina, M. R., Isselhardt, B. H.

Get full text

Observation by photothermal microscopy of increased silica absorption in laser damage induced by gold nanoparticles by Bonneau, F., Combis, P., Rullier, J. L., Commandré, M., During, A., Natoli, J. Y., Pellin, M. J., Savina, M. R., Cottancin, E., Pellarin, M.

“…In order to understand laser-induced damage in glass, we subjected engineered SiO2 thin films containing sub-micron gold inclusions to high fluences, and…”
Get full text

Estimation of useful yield in surface analysis using single photon ionisation by King, B.V, Pellin, M.J, Moore, J.F, Veryovkin, I.V, Savina, M.R, Tripa, C.E

“…Secondary ion mass spectrometry (SIMS), laser sputter neutral mass spectrometry (SNMS) and laser desorption photoionisation (LDPI) have been used to…”
Get full text

Microscopic Chemical Imaging with Laser Desorption Mass Spectrometry by Savina, Michael R, Lykke, Keith R

“…Mass spectrometric chemical images of surfaces were obtained using a laser desorption/laser postionization time-of-flight mass spectrometer. Using a single…”
Get full text

Chemical imaging of surfaces with laser desorption mass spectrometry by Savina, Michael R., Lykke, Keith R.

“…Mass spectrometric imaging of surfaces can reveal features not evident in micrographs. The use of two lasers, one to desorb atoms and molecules and a second to…”
Get full text

Single photon ionisation of self assembled monolayers by King, B.V., Savina, M.R., Tripa, C.E., Calaway, W.F., Veryovkin, I.V., Moore, J.F., Pellin, M.J.

“…Self assembled monolayers formed from benzenethiol, diphenylsulphide and diphenyldisulphide have been analysed using secondary ion mass spectrometry (SIMS),…”
Get full text

Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS by Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., Hutcheon, I. D.

“…Resonance ionization mass spectrometry (RIMS) holds the promise of rapid, isobar-free quantification of actinide isotope ratios in as-received materials (i.e…”
Get full text

Improved precision and accuracy in quantifying plutonium isotope ratios by RIMS by Isselhardt, B. H., Savina, M. R., Kucher, A., Gates, S. D., Knight, K. B., Hutcheon, I. D.

“…Resonance ionization mass spectrometry (RIMS) holds the promise of rapid, isobar-free quantification of actinide isotope ratios in as-received materials (i.e…”
Get full text

Uranium analysis by Resonance Ionization Mass Spectrometry: High Useful Yield and Rapid Isotopic Analysis by Savina, M R, Isselhardt, B H, Kucher, A, King, B V, Ruddle, D, Gopal, R, Trappitsch, R G

Get full text

Photocatalytic degradation of methylene blue on nanocrystalline TiO2: Surface mass spectrometry of reaction intermediates by Gnaser, Hubert, Savina, Michael R., Calaway, Wallis F., Tripa, C. Emil, Veryovkin, Igor V., Pellin, Michael J.

Get full text

Development of a detection method for {244}Pu by resonance ionization mass spectrometry by Ofan, A., Ahmad, I., Greene, J. P., Paul, M., Savina, M. R.

“…The long-lived actinide {sup 244}Pu (t{sub 1/2} = 81 Myr) is expected to be present in the Interstellar Medium from fresh r-process nucleosynthesis or in…”
Get full text