Intense pulsed helium droplet beams

Review of Scientific Instruments - Tập 73 Số 10 - Trang 3600-3605 - 2002
Mikhail N. Slipchenko1, Susumu Kuma2, Takamasa Momose2, Andrey F. Vilesov1
1Department of Chemistry, University of Southern California, Los Angeles, California 90089
2Permanent address: Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 605-8502, Japan

Tóm tắt

Pulsed (30–100 μs) nozzle beams have been used to generate helium droplets (〈N〉=104–105). The dependence of the beam intensity and the mean droplet size on the source stagnation pressure and temperature are studied via mass spectroscopy and laser induced fluorescence of embedded phthalocyanine molecules. In comparison to a cw beam the pulsed source for the same pressure and temperature has a factor of 100 higher flux and the droplet sizes are 1 order of a magnitude larger.

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Review of Scientific Instruments

Tập 73 Số 10

3600-3605

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