Zobrazeno 1 - 10
of 260
pro vyhledávání: '"N.S. Nogar"'
Publikováno v:
The Journal of Physical Chemistry. 100:5205-5209
Trapped ions of different masses can be separated in space within a quadrupole ion trap, making it possible to perform efficient mass-selective photodissociation on a mixture of ions. This method employs an axial quadrupolar dc pulse (1 μs) to force
Publikováno v:
Journal of the American Society for Mass Spectrometry. 4:792-797
The effects on ion motion caused by the application of a resonance AC dipole voltage to the end-cap electrodes of the quadrupole ion trap are described. An excimer laser is used to photodissociate benzoyl ions, and its triggering is phase locked to t
Publikováno v:
Chemical Physics Letters. 191:405-410
Ion tomography studies based on spatially resolved photodissociation of benzoyl cation (C 6 H 5 CO + ) in an ion-trap mass spectrometer are presented. Changes in radially averaged parent ion distributions are observed as a function of applied RF pote
Publikováno v:
Surface Science. 130:L317-L323
LEED patterns characteristic of an ordered array of equally spaced steps of minimum height resulted from pulsing disordered Bi(∼0001) vicinal surfaces. Ten XeCl eximer laser pulses at λ=308 nm, of 10 ns duration and 4 mJ/cm 2 each and at 0.5 s int
Autor:
C.N. Merrow, N.S. Nogar
Publikováno v:
Chemical Physics Letters. 79:69-74
The pulsed CO 2 laser photolysis of triethyl phosphite, P(OC 2 H 5 ) 3 is reported. Unimolecular decomposition produces PO(OC 2 H 5 ) 2 and C 2 H 5 . Sequential photolysis and/or subsequent bimolecular reaction yields the observed end products and ac
Autor:
W.A Jalenak, N.S. Nogar
Publikováno v:
Chemical Physics. 41:407-414
The multiphoton induced chemistry of trifluorobromomethane (CF 3 Br), using a pulsed TEA CO 2 laser operating in the R branch of the 00°1–02°0 transition, and the effects of pulse number, pressure, and exciting wavelength has been investigated. T
Autor:
N.S. Nogar, E. C. Apel
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 70:243-246
Autor:
N.S. Nogar, Gregory L. Keaton
Publikováno v:
Chemical Physics Letters. 120:327-331
We present a partial mechanism for excitation and energy transfer in a Ne/O 2 dc discharge. Atomic and molecular concentrations are monitored via the optogalvanic effect. A resonant Penning ionization process is proposed for the production of O 2 + (
Publikováno v:
Molecular Physics. 56:977-987
The dynamics of the B 2∏r(ν' = 7) state of 14N16O and the heavy-heavy molecular isotope 15N18O was studied in a laser induced fluorescence bulb system at room temperature. The NO was excited at 193 nm with an exciplex laser. The fluorescence was o
Publikováno v:
Chemical Physics Letters. 64:457-460
Multiphoton laser-induced decomposition is reported here for photolysis ketene with 9.260 μm radiation from a pulsed CO 2 TEA laser. Chemical end products of this photolysis were primarily H 2 and CO. Visible chemiluminescence, attributed to C 2 Swa