electron emission वाक्य
उदाहरण वाक्य
मोबाइल
- However the electron spin is 1 / 2, so that angular momentum would not be conserved if beta decay were simply electron emission.
- The massive short pulse of high voltage causes the cathode to emit an intense burst of electrons by the field electron emission mechanism.
- It can be seen in the below chart what a typical I-V curve looks like for a hollow cathode in electron emission mode.
- In addition to using a ribbed beam screen designed to minimize secondary electron emission, the effect can also be reduced by in-situ electron bombardment.
- Owing to the large number of highly curved fullerene surfaces acting as electron emission sites on conductive carbon nanotubes, nanobuds possess advantageous field electron emission characteristics.
- Owing to the large number of highly curved fullerene surfaces acting as electron emission sites on conductive carbon nanotubes, nanobuds possess advantageous field electron emission characteristics.
- As noted at the beginning, the effects of the atomic structure of materials are disregarded in the relatively simple treatments of field electron emission discussed here.
- Secondary electron emission is used in photomultiplier tubes and image intensifier tubes to amplify the small number of photoelectrons produced by photoemission, making the tube more sensitive.
- Once the tube strikes, the impinging main discharge keeps the cathodes hot, permitting continued electron emission without the need for the filaments to continue to be heated.
- Phototubes and photomultipliers rely on electron flow through a vacuum, though in those cases electron emission from the cathode depends on energy from photons rather than thermionic emission.
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