抄録
In laser produced plasma EUV source, high intensity pulse CO<inf>2</inf> laser is essential for plasma generation. To achieve high conversion efficiency and stable EUV power, we desire to measure laser profile at the collision point. However, focused laser profile has not been observed directory by existing techniques. We have been developing laser profiler based on laser Compton scattering. Laser profile can be measured by scanning focused electron beam while measuring Compton scattering signal. This method is suitable for a high intensity laser, but very small spot size of electron beam is required. To achieve small spot size, we use S-band photocathode rf gun and specially designed solenoid lens. The beam size was simulated by General particle tracer (GPT) and directory measured by Gafchromic film HD-810. We have succeeded in observing minimum beam size of about 20μm rms. We are preparing beam scanning system, pulse CO<inf>2</inf> laser and a detector for Compton signal. In this conference, we will report the results of focused electron beam measurement and future prospect.
| 元の言語 | English |
|---|---|
| ホスト出版物のタイトル | IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference |
| 出版者 | Joint Accelerator Conferences Website (JACoW) |
| ページ | 2242-2244 |
| ページ数 | 3 |
| ISBN（印刷物） | 9783954501328 |
| 出版物ステータス | Published - 2014 7 1 |
| イベント | 5th International Particle Accelerator Conference, IPAC 2014 - Dresden, Germany 継続期間: 2014 6 15 → 2014 6 20 |
Other
| Other | 5th International Particle Accelerator Conference, IPAC 2014 |
|---|---|
| 国 | Germany |
| 市 | Dresden |
| 期間 | 14/6/15 → 14/6/20 |
Fingerprint
ASJC Scopus subject areas
- Nuclear and High Energy Physics
これを引用
Direct high power laser diagnostic technique based on focused electron bunch. / Sato, R.; Yoshida, Y.; Nonomura, K.; Sakaue, Kazuyuki; Endo, A.; Washio, Masakazu.
IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2014. p. 2242-2244.研究成果: Conference contribution
}
TY - GEN
T1 - Direct high power laser diagnostic technique based on focused electron bunch
AU - Sato, R.
AU - Yoshida, Y.
AU - Nonomura, K.
AU - Sakaue, Kazuyuki
AU - Endo, A.
AU - Washio, Masakazu
PY - 2014/7/1
Y1 - 2014/7/1
N2 - In laser produced plasma EUV source, high intensity pulse CO2 laser is essential for plasma generation. To achieve high conversion efficiency and stable EUV power, we desire to measure laser profile at the collision point. However, focused laser profile has not been observed directory by existing techniques. We have been developing laser profiler based on laser Compton scattering. Laser profile can be measured by scanning focused electron beam while measuring Compton scattering signal. This method is suitable for a high intensity laser, but very small spot size of electron beam is required. To achieve small spot size, we use S-band photocathode rf gun and specially designed solenoid lens. The beam size was simulated by General particle tracer (GPT) and directory measured by Gafchromic film HD-810. We have succeeded in observing minimum beam size of about 20μm rms. We are preparing beam scanning system, pulse CO2 laser and a detector for Compton signal. In this conference, we will report the results of focused electron beam measurement and future prospect.
AB - In laser produced plasma EUV source, high intensity pulse CO2 laser is essential for plasma generation. To achieve high conversion efficiency and stable EUV power, we desire to measure laser profile at the collision point. However, focused laser profile has not been observed directory by existing techniques. We have been developing laser profiler based on laser Compton scattering. Laser profile can be measured by scanning focused electron beam while measuring Compton scattering signal. This method is suitable for a high intensity laser, but very small spot size of electron beam is required. To achieve small spot size, we use S-band photocathode rf gun and specially designed solenoid lens. The beam size was simulated by General particle tracer (GPT) and directory measured by Gafchromic film HD-810. We have succeeded in observing minimum beam size of about 20μm rms. We are preparing beam scanning system, pulse CO2 laser and a detector for Compton signal. In this conference, we will report the results of focused electron beam measurement and future prospect.
UR - http://www.scopus.com/inward/record.url?scp=84928330232&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928330232&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9783954501328
SP - 2242
EP - 2244
BT - IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference
PB - Joint Accelerator Conferences Website (JACoW)
ER -