Rotational state selection of a CH3I+ ion beam using vacuum ultraviolet–mass-analyzed threshold ionization spectroscopy: Characterization using photodissociation spectroscopy

2008 ◽  
Vol 128 (12) ◽  
pp. 124324 ◽  
Author(s):  
Yong Jin Bae ◽  
Myung Soo Kim
Keyword(s):  
Vacuum Ultraviolet ◽  
Ion Beam ◽  
Rotational State ◽  
Threshold Ionization ◽  
State Selection ◽  
Selection Of

A cw dye laser for intracavity state selection of atomic and molecular gases

1984 ◽  
Vol 49 (5) ◽  
pp. 335-339 ◽  
Author(s):  
G. Weissmann ◽  
J. Ganz ◽  
A. Siegel ◽  
H. Waibel ◽  
H. Hotop
Keyword(s):  
Dye Laser ◽  
Molecular Gases ◽  
State Selection ◽  
Selection Of

Vibrational state selection of ammonia ions using resonant 2 + 1 multiphoton ionization

1985 ◽  
Vol 113 (5) ◽  
pp. 429-434 ◽  
Author(s):  
William E. Conaway ◽  
Richard J.S. Morrison ◽  
Richard N. Zare
Keyword(s):  
Vibrational State ◽  
Multiphoton Ionization ◽  
State Selection ◽  
Selection Of

Soft x‐ray and vacuum‐ultraviolet spectroscopy of ion‐beam‐heated thin targets

1979 ◽  
Vol 35 (2) ◽  
pp. 140-142 ◽  
Author(s):  
E. J. T. Burns ◽  
D. J. Johnson ◽  
A. V. Farnsworth ◽  
G. W. Kuswa ◽  
G. A. Doschek ◽  
...  
Keyword(s):  
Vacuum Ultraviolet ◽  
Ion Beam ◽  
Ultraviolet Spectroscopy ◽  
X Ray ◽  
Vacuum Ultraviolet Spectroscopy

scholarly journals Graphitization of Small Carbonate Samples for Paleoceanographic Research at the Godwin Radiocarbon Laboratory, University of Cambridge

Radiocarbon ◽  
2016 ◽  
Vol 58 (1) ◽  
pp. 89-97 ◽  
Author(s):  
E Freeman ◽  
L C Skinner ◽  
R Reimer ◽  
A Scrivner ◽  
S Fallon
Keyword(s):  
Iron Powder ◽  
Hydrogen Reduction ◽  
Ion Beam ◽  
Small Sample ◽  
Small Samples ◽  
University Of Cambridge ◽  
National University ◽  
Set Up ◽  
The University ◽  
Selection Of

AbstractA new radiocarbon preparation facility was set up in 2010 at the Godwin Laboratory for Palaeoclimate Research, at the University of Cambridge. Samples are graphitized via hydrogen reduction on an iron powder catalyst before being sent to the Chrono Centre, Belfast, or the Australian National University for accelerator mass spectrometry (AMS) analysis. The experimental setup and procedure have recently been developed to investigate the potential for running small samples of foraminiferal carbonate. By analyzing background values of samples ranging from 0.04 to 0.6 mg C along with similar sized secondary standards, the setup and experimental procedures were optimized for small samples. “Background” modern 14C contamination has been minimized through careful selection of iron powder, and graphitization has been optimized through the use of “small volume” reactors, allowing samples containing as little as 0.08 mg C to be graphitized and accurately dated. Graphitization efficiency/fractionation is found not to be the main limitation on the analysis of samples smaller than 0.07 mg C, which rather depends primarily on AMS ion beam optics, suggesting further improvements in small sample analysis might yet be achieved with our methodology.

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