Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Andrew D. J. Critchley"'
Publikováno v:
The European Physical Journal D. 35:307-312
An existing electron swarm apparatus has been redesigned and upgraded. In particular, the new design incorporates a novel planar radioactive foil to form an integral part of the drift tube, allowing us to overcome inherent problems present in our ear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616c49fa5ce2c436f2ee57f9d3c50846
https://doi.org/10.1140/epjd/e2005-00087-7
https://doi.org/10.1140/epjd/e2005-00087-7
Autor:
T.S. Elliott, G.R. Harrison, Chris A. Mayhew, Andrew D. J. Critchley, J.M. Thompson, T. Worthington
Publikováno v:
International Journal of Mass Spectrometry. 239:235-241
Proton transfer reaction mass spectrometry (PTR-MS) enables monitoring of trace gases in air with high sensitivity without major gases interfering. In this paper, we present the potential use of a proton transfer reaction mass spectrometer for two me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1db6c3d9a5a4dd1ec85b9b514bc58e3a
https://doi.org/10.1016/j.ijms.2004.08.008
https://doi.org/10.1016/j.ijms.2004.08.008
Publikováno v:
International Journal of Mass Spectrometry. 233:259-265
The first investigation of non-thermal electron attachment to SF5Cl in a swarm environment is reported here. An electron swarm mass spectrometer, the drift tube of which operates in an atmospheric pressure of N2 or Ar, has been used to obtain the dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3ed2989af05a73da9e24043f3429e75
https://doi.org/10.1016/j.ijms.2003.12.031
https://doi.org/10.1016/j.ijms.2003.12.031
Publikováno v:
Chemical Physics Letters. 372:557-562
Although attempts to measure spectra of NO 2+ using ion beam spectroscopy have been unsuccessful to date we show that the Newcastle ion-beam/infrared laser beam spectrometer should be capable of recording the spectrum calculated here. We report ab in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a8f04be2ff51016cd2f3fe710cc1336
https://doi.org/10.1016/s0009-2614(03)00444-5
https://doi.org/10.1016/s0009-2614(03)00444-5
Publikováno v:
Molecular Physics. 101:651-661
A full account is given of calculations and measurements of transition frequencies and intensities of the forbidden pure rotation transition (v = 19, N = 1)-(v = 19, N = 0) in the ground electronic state (1ssigma(g)) of H-2(+). The transition has mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4a386add533dc1753924410020c6dae
https://doi.org/10.1080/0026897021000021886
https://doi.org/10.1080/0026897021000021886
Publikováno v:
Physical Chemistry Chemical Physics. 4:2206-2223
A selected ion flow tube apparatus was used to investigate the positive ion chemistry of two derivatives of SF6; SF5CF3 and SF5Cl. This represents the first investigation of the positive ion chemistry of SF5Cl, and much of the data on SF5CF3 is being
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da00e7323eb96d13d52151775a559783
https://doi.org/10.1039/b109567f
https://doi.org/10.1039/b109567f
Autor:
Andrew D. J. Critchley, Faye Kemp, Fiona E. Smith, Simon G. Cox, Ramadan Abusen, Ralph C. Shiell, AN Hughes, Iain R. McNab
Publikováno v:
Review of Scientific Instruments. 73:241-254
We have constructed an apparatus for studying the infrared spectra of molecules with a doubly positive charge (molecular dications). The spectroscopic transitions were recorded indirectly by means of observing a change in the fragmentation rate of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97aecf378fcf26c7f5175ca55baf9583
https://doi.org/10.1063/1.1428638
https://doi.org/10.1063/1.1428638
Autor:
Andrew D. J. Critchley, George C. King, Peter S. Kreynin, M. Cristina A. Lopes, Andrew J. Yencha, Iain R. McNab
Publikováno v:
Chemical Physics Letters. 349:79-83
Vibrationally resolved threshold photoelectrons in coincidence (TPEsCO) spectra of the X 3 Σ − and a 1 Δ states of HCl2+ and DCl2+ are compared with ab initio simulations. The four resonances observed in the TPEsCO spectra of both the X 3 Σ −
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a2fbfe153de8d340cab28e68c0711c1
https://doi.org/10.1016/s0009-2614(01)01178-2
https://doi.org/10.1016/s0009-2614(01)01178-2
Publikováno v:
Physical Review Letters. 86:1725-1728
The N = 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::550ee83ea6f788f6e196808b399ede92
https://doi.org/10.1103/physrevlett.86.1725
https://doi.org/10.1103/physrevlett.86.1725
Publikováno v:
Measurement Science and Technology. 10:R101-R128
Collinear laser-beam/ion-beam spectroscopy provides a collision-free environment in which to study atomic and molecular ions. Ion-beam spectroscopy has particular advantages over other methods: spectra are relatively simple due to mass selection; kin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e463afbb1d77b69ac04cade9747adeb8
https://doi.org/10.1088/0957-0233/10/9/201
https://doi.org/10.1088/0957-0233/10/9/201