Statistical phase space theory of polyatomic systems. Application to the cross section and product kinetic energy distribution of the reaction C2H4.cntdot.+ + C2H4 .fwdarw. C3H5+ + CH3

1976 ◽  
Vol 98 (26) ◽  
pp. 8301-8309 ◽  
Author(s):  
W. J. Chesnavich ◽  
M. T. Bowers
Keyword(s):  
Phase Space ◽  
Kinetic Energy ◽  
Energy Distribution ◽  
Cross Section ◽  
Kinetic Energy Distribution ◽  
Space Theory ◽  
Phase Space Theory ◽  
Polyatomic Systems ◽  
The Cross

Energy Distribution in Electron Beams

1972 ◽  
Vol 30 ◽  
pp. 568-569
Author(s):  
Tamotsu Ohno
Keyword(s):  
Electron Beam ◽  
Energy Distribution ◽  
Cross Section ◽  
Integral Curve ◽  
Electron Beams ◽  
Electron Gun ◽  
Angular Divergence ◽  
Apparent Increase ◽  
Integral Width ◽  
The Cross

The energy distribution in an electron; beam from an electron gun provided with a biased Wehnelt cylinder was measured by a retarding potential analyser. All the measurements were carried out with a beam of small angular divergence (<3xl0-4 rad) to eliminate the apparent increase of energy width as pointed out by Ichinokawa.The cross section of the beam from a gun with a tungsten hairpin cathode varies as shown in Fig.1a with the bias voltage Vg. The central part of the beam was analysed. An example of the integral curve as well as the energy spectrum is shown in Fig.2. The integral width of the spectrum ΔEi varies with Vg as shown in Fig.1b The width ΔEi is smaller than the Maxwellian width near the cut-off. As |Vg| is decreased, ΔEi increases beyond the Maxwellian width, reaches a maximum and then decreases. Note that the cross section of the beam enlarges with decreasing |Vg|.

Sign in / Sign up

Export Citation Format

Share Document