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Mechanical vacuum systems Operating range

Mechanical separations, 224 Mechanical vacuum systems, 342 Applications, 352, 353 Barometric iniercondenser, 349 Evacuation times, 387 Operating range, 355 Performance curves, 386 Pump down, 380... [Pg.628]

Finaliy, photoconductivity (PC) studies have been performed by Moses et al. [121] on a-8T single crystals to study the intrinsic properties of photoexcitation and transport in such a model molecular crystal systems and to determine the role of structural defects on these properties. Picosecond transient PC measurements over a wide range of temperatures (10-300K) demonstrate that the dependence of the transient photocurrent on hght intensity and electric field in the single crystal a-8T is radically different from that in vacuum-deposited polycrystalUne films. The photo-current lifetime in the a-8T crystal is of the order of a nanosecond whereas in the film it is less than 100 ps. These observations indicate a bi-molecular carrier recombination component prevailing in the a-8T single crystals, whereas a mono-molecular mechanism operates in polycrystalline films. [Pg.220]

See other pages where Mechanical vacuum systems Operating range is mentioned: [Pg.16]    [Pg.148]    [Pg.148]    [Pg.41]    [Pg.139]    [Pg.161]    [Pg.6]    [Pg.241]    [Pg.156]    [Pg.144]    [Pg.530]    [Pg.147]    [Pg.406]    [Pg.547]    [Pg.147]    [Pg.182]    [Pg.255]    [Pg.260]    [Pg.138]    [Pg.286]    [Pg.496]    [Pg.871]    [Pg.55]    [Pg.687]    [Pg.233]    [Pg.249]    [Pg.296]    [Pg.950]    [Pg.936]   
See also in sourсe #XX -- [ Pg.355 ]



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