SECONDARY ELECTRON EMISSION OF THE BARIUM OXIDE-TUNGSTEN SYSTEM AT LOW PRIMARY-ELECTRON ENERGIES
Journal Article
·
· Soviet Phys.-Solid State (English Transl.)
OSTI ID:4659676
A study was made of the secondary electron emission from barium oxide films of various thicknesses on tungsten before and after heating. It was found that, irrespective of the initial thickness of the deposited film, after heating at T = 1100 deg K the system acquired a new stable state characterized by a smaller value of the secondary-electron emission coefficient sigma and a new form of the dependence sigma (E/sub p/). The experimental results show that, apart from partial evaporation of the barium oxide, other processes occur at this temperature. Heating of the system to T approximately 1500 deg K caused intense evaporation of the deposited substance. (auth)
- Research Organization:
- Kalinin Polytechnical Inst., Leningrad
- NSA Number:
- NSA-17-037233
- OSTI ID:
- 4659676
- Journal Information:
- Soviet Phys.-Solid State (English Transl.), Journal Name: Soviet Phys.-Solid State (English Transl.) Vol. Vol: 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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