1994 Fiscal Year Final Research Report Summary
Research on Micro FEL driven by a Micro Electron Beam from a Spindt Cathode
| Project/Area Number |
04452313
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
プラズマ理工学
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
MIMA Kunioki Institute of Laser Engineering, Osaka Univ., レーザー核融合研究センター, 教授 (30033921)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TAKABE Hideaki Institute of Laser Engineering, Osaka Univ., レーザー核融合研究センター, 助教授 (20150352)
KITAGAWA Yoneyoshi Institute of Laser Engineering, Osaka Univ., レーザー核融合研究センター, 助教授 (40093405)
YAMANAKA Masanobu Institute of Laser Engineering, Osaka Univ., レーザー核融合研究センター, 助教授 (10029118)
NAKAI Mituo Institute of Laser Engineering, Osaka Univ., レーザー核融合研究センター, 助手 (70201663)
TAGUCHI Toshihiro Faculty of Engineering, Setsunan Univ., 工学部, 助教授 (90171595)
|
|---|
| Project Period (FY) |
1992 – 1994
|
| Keywords | VME / FEL / FEA / electron beam / emittance / cherenkov emission / computer simulation / wiggler |
|---|
| Research Abstract |
In this research, applied to a micro FEL is a high current density micro electron beam which has been developed for the vacuum micro electronics (VME). The high current micro electron beam is injected into a mum-scale dielectric wave guide in order to generate the cherenkov radiation and start the FEL oscillation. The micro electron beam used for VME is generated by using a micro emitter which is called 'field emission array'.
When the electron beam diameter is lmum and the current is higher than a few hundreds of muA,the computer simulations indicate that the cherenkov micro FEL will reach the oscillation stage. In the simulation, we used a dielectric optical guide whose inner diameter and length are 2-4mum and 2mm respectively. The oscillation reaches the saturation stage within 200psec for 100muA.
As a typical FEA device, we chose the Spindt Cathode and investigate the emission process and the beam propagation by a developed computer simulation code. A preliminary experiments with a needle cathode has been also demonstrated.
|
