1. First operation of an FEL in same-cell energy recovery mode
2. R. Hajima, et al., Proceedings of the 27th Linear Accelerator Meeting, Japan, 2002, p. 97 (in Japanese).
3. R. Hajima, et al., Proceedings of the 23rd International FEL Conference, 2002, p. II27.
4. T. Yamazaki, et al., Proceedings of the 23rd International FEL Conference, 2002, p. II13.
5. Simulations of electron backstreaming in a microwave thermionic gun