Electrical noise and measurement limits of physical quantities. Electrical signal conditioning and processing with passive and active elements. Protection of sensitive instruments from electromagnetic and microseismic interference. Magnetic field generation. Secondary electron emission, Faraday cage and two basic functions of the photomultiplier tube. Electron beam shaping, electrostatic lens. Electrical discharges in gases, electrical discharge devices and sputtering technique. Basic techniques for high vacuum generation and measurement. The course includes: 1. Electrical signal and pulse propagation in transmission lines. 2. Temperature control of specimens. 3. Improving the signal-to-noise ratio, Lock-In Amplifier. 4. Constant voltage sources. 5. Constant current sources. 6. Study of electrical discharge in a Neon lamp. 7. Standing waves in transmission lines. 8. Weak light flux measurement with a photomultiplier.
- Teacher: Γεώργιος Τσιπολίτης
ECTS : 5
Language : el