Development of RF gun producing high intensity and polarized electron beam
| Project/Area Number |
24654054
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HINODE Fujio 東北大学, 電子光理学研究センター, 准教授 (60292207)
KURIKI Masao 広島大学, 先端物質科学研究科, 教授 (80321537)
|
|---|
| Project Period (FY) |
2012-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
|---|
| Keywords | 電子ビーム / 低エミッタンス / 偏極ビーム / エミッタンス交換 / 偏極電子ビーム / リニアコライダー / 電子銃 / エミッタンス / 高品質電子ビーム / 高周波空洞 / 扁平ビーム |
|---|
| Outline of Final Research Achievements |
We have developed a photocathode RF gun with DAW structure type to generate an extremely low emittance and spin polarized electron beam. NEA-GaAs cathode is used for generation of spin polarized electron beam, NEA-GaAs has a vulnerability issue and it requires an ultra-high vacuum level. It has confirmed that it is possible to install the additional vacuum pumping system to the DAW type of RF gun system without reducing the Q-value of cavities. On the other hand, to overcome a vulnerability issue of NEA surface, we evaporated CsTe semi-conductor thin film on GaAs surface and obtained a result which suggest NEA surface on GaAs wafer. This could be another technique for the NEA activation with Cs-O/F. To make the high aspect ratio of the beam shape, the X-Y emittance exchange technique is employed for RF gun system. We have performed tracking simulation for KEK-STF beam line. We established the emittance exchange method by using solenoid magnet and a set of skew quadrupole magnets.
|
Report
(5 results)
Research Products
(6 results)
-
[Journal Article] 1ms Pulse Beam Generation and Acceleration by Photocathode Radio Frequency Gun and Superconducting Accelerator2013
Author(s)
Masao Kuriki, Hokuto Iijima, Seiichi Hosoda, Ken Watanabe, Hitoshi Hayano, Junji Urakawa, Goro Isoyama, Ryukou Kato, Keigo Kawase, Ayaka Kuramoto, Shigeru Kashiwagi, and Kazuyuki Sakaue
-
Journal Title
Japanese Journal of Applied Physics
Volume: 52
Issue: 5R
Pages: 56-401
DOI
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
