飞秒电子束装置的初步实验结果.pdfVIP

第 20 卷第4 期 强激光与粒子束 Vol. 20 .No. 4 2008 年 4 月 HIGH POW I::R LASER AND PAR TICLE BEAMS Apr . ,2008 ArUcle ID , 1001-4322(2008)04-0585-04 Preliminary results of a femto-second electron bunch facility GU Q iang , CHEN Yong-zhong , DA I Zhi-min , LI De-ming , ZHAO Zhen-tang (Shanghai ln,titut. 01 Aþplì.d Phy,ics. P. O. .% 800-204. Shanghai 201800. China) Abstract , A femto-s目。nd electron bunch (acility has been constructed and commiss崎ned 8t the Shanghai lnstitute o{ Applied Physics(SrNAP). T he linac o{ this facilityω回国ts of an S-band thermionic c8thode RF- gun. an alpha rnagnet and a SLAC-τype accelerating tube to generate a beam. then compress the micro-bunches. and linally accelerate the b甜皿阳 20-30 MeV. Preliminary experimental result shows that the length 0 1the mi - cro-bunches is about 250 (s. The measured beam parameters 01 this facility are presented in this paper. Key..阳也， RF gunl Femt(γsecond electTon beam , THz radiation source CLC number , TL53 Dooument c啊Ie， A The THz radiation sourcéJ at Shanghai Institute of Applied Physics(SINAP) ís similar 10 the SUN- SHINE facility at Stanford Universitf2J and the SURIYA facility at Chiang M ai Universitf3J • consisting of a femto户second electron bunch facility and THz b eam lines. In the first phase. the THz radiation will be gener- ated and studied in t he form of coherent transition r adiation (CTR) , coherent synchrotron radiation(CSR) for commissioning. In the second phase , an ellipt