1. Maybe under pressure free electrons do it.

2. The alternating transverse force makes the free electrons move sinusoidally, radiating photons in the forward direction.

3. Alas, a free electron carries an electric charge.

4. This represents the free electron.

5. The Shanghai Free Electron Laser (SFEL) user facility currently under construction at Shanghai institute of Nuclear Research is a broadband free electron laser (FEL) facility.

6. Free electron laser works as follows: an electron beam goes through the section with alternating magnetic field making electrons move along a wavy path and not a straight one.

7. But we see if we have a free electron, as we do in this dotted line here, that's going to be a higher energy that's less stable.

8. It is a free electron so there is no potential energy to be accounted for.

9. Ion-channel laser (ICL) is a new form of free electron laser which can produce tunable-coherent radiation with frequencies ranging from microwave to soft X rays.

10. A design of an over-all experiment of Raman free electron laser with an optical klystron configuration is put forward.

11. Shanghai broadband free electron laser(FEL) user facility will be executed in three stages:start stage, earlier stage and later stage.

12. The effects of undulator phase errors on the Free Electron Laser small signal gain is analyzed and discussed.

13. We introduce the specifications and regulating methods of free electron laser devices used for medicine, and discuss the free electron laser-tissue interaction.

14. This article is a comprehensive report about Free Electron Lasers (FEL).

15. Ride received a doctorate in astrophysics and free electron laser physics from Stanford.

16. Integrate circuit, the laser and the gyroradiation of relativistic free electron were three important discovers and inventions in 1958.

17. These systems include the Airborne Laser, Advanced Tactical Laser, Free Electron Laser, Laser Avenger and Tactical Relay Mirror System.

17. try its best to collect and make good sentences.

18. Intense Ion and Electron Beams treats intense charged-particle beams used in vacuum tubes, particle beam technology and experimental installations such as free electron lasers and accelerators.

19. These systems include the Airborne Laser, Advanced Tactical Laser, Free Electron Laser, High Energy Laser Technology Demonstrator and Tactical Relay Mirror System.

20. The output frequency of ICL is obtained from the resonance condition, and the comparison is carrying out among ICL, Cyclotron Auto Resonance Maser (CARM) and conventional Free Electron Laser (FEL).

21. In the high efficiency and small signal region, we investigate theoretically the efficiency enhancement mechanism of far infrared free electron laser (FIR-FEL) with a reverse tapering waveguide.

22. The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon.

23. In the conductor or some solutions, the true migration is the belt electric charge granule, like free electron, ion.

24. This paper deals with the statistical properties about two dimensional photon gas and free electron gas.

25. It is necessary to use this kind of INEX simulations in order to accurately calculated and predict the lasing performance of free electron lasers.

26. Influence of untrapped electrons on the sideband instability of electromagnetic Wig-gler free electron laser(EM-FEL)is analyzed in detail with single-particle theory.

27. To obtain high average current electron beams for high average power Free Electron Laser (FEL), a DC-SC photocathode injector is designed.

28. Results and Conclusion The calculated radar diffusion section, using the free electron density of the trail as its input has higher accuracy than the two dimensional results.

29. The paper studies electron nonlinear steady motion equation in free electron lasers with axial magnetic field by the perturbed appro?ch.

30. This paper gives a quantum mechanical analysis of the interaction between the electromagnetic field and the electron beam of free electron stimulated emission devices or linear electron accelerator.

31. A method for direct measuring the frequency of a free electron laser using AC Josephson effect is presented.

32. The free electron gas is a kind of representative quantum Fermi gas.

33. The paper studies electron nonlinear steady motion equation in free electron lasers with axial magnetic field by the perturbed appro?

34. Frequency-resolved measurement of the emission from a Eaman free electron laser under superradiation condition by a microwave grating spectrometer are presented.