Question

The average energy lost by the
incident particle in creation one ion-
pair which lies between​

Answer 1

Answer:

A pair-ion plasma using a hollow electron beam is produced (Oohara and Hatakeyama, 2003a) by the improvement of a conventional DC discharge plasma source. The experimental setup is schematically shown in Fig. 1. Low-energy electrons (∼ 0.1 eV), thermionically emitted from the cathode, are accelerated by an electric field between the cathode and the ground grid [Region (I)], forming an electron beam with the energy of 0 ∼ 150 eV, which is controlled by changing the cathode bias voltage Vk. A stainless-steel disk (6 cm in diameter) is installed on the grid, therefore the shape of the electron beam become a hollow tube. The fullerene vapor produced by sublimation is introduced from the side wall of the cylinder and crossed by the electron beam in Region (II). Positive fullerene ions (C60+) are produced by an electron-impact ionization, being accompanied by the simultaneous production of low-energy

Answer 2

Answer:

The average energy lost by the

incident particle in creation one ion-

pair which lies between

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