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  • 1
    Electronic Resource
    Electronic Resource
    Low-emittance electron-beam generation with laser pulse shaping in photocathode radio-frequency gun (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 92 (2002), S. 1608-1612 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A technique of laser-pulse shaping was developed for low-emittance electron-beam generation in a photocathode radio-frequency (rf) gun. The emittance growth due to space charge and rf effects in the rf gun was experimentally investigated with square and gaussian temporal pulse shapes. It was found that the square pulse shaping was a useful tool for both the reduction of nonlinear space-charge force and the correction of linear space charge. The normalized transverse rms emittance at 1 nC was obtained to be 1.20 πmm-mrad for the square pulse shape with pulse length of 9 ps full width at half maximum. The emittance was measured as a function of the electron bunch charge and the laser-pulse length. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1487457
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  • 2
    Electronic Resource
    Electronic Resource
    Detection of hydrogen isotope atoms by mass spectrometry combined with resonant ionization (1999)
    Springer
    Applied physics 69 (1999), S. 129-132 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 79.20.D; 42.62.F; 62.80.K
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We examined the application of mass spectrometric methods using resonant ionization by a tunable laser and proposed its use for analyzing hydrogen isotopes. We conducted resonance ionization mass spectrometry (RIMS) to detect gas-phase hydrogen isotope atoms. The ionization efficiency was increased by more than 1000 times that obtained with conventional methods using nonresonant ionization. Resonant laser ablation mass spectrometry (RLAMS) was applied for deuterium detection in solid samples. A graphite substrate implanted with deuterium was used for ordinary laser ablation mass spectrometry (LAMS) and RLAMS. The deuterium signal was observed very clearly by RLAMS, in contrast to LAMS. Mass spectrometry combined with resonance ionization was very useful for hydrogen isotope detection, because components with equal mass numbers were resolved and the method demonstrated higher ionization efficiency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050784
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    Paper (German National Licenses)
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