Abstract
We studied the material dependence of electron acceleration with ultra-intense laser light at an intensity of 5x10{sup 19} W/cm{sup 2}. Recent particle simulations have shown that the average energy of fast electrons stays lower than the prediction of ponderomotive scaling if intense laser light interacts directly with the target material. To control the fast electron energy spectra, we performed an experiment at the J-KAREN laser facility. The observed electron spectra show that the slope temperature for aluminum is 1.4 times higher than gold. The enhancement is strongly related to the average ionisation degree in the thin preplasma region in the PIC simulation result. The maximum proton energy reaches 10 MeV, and it shows the same values for Al, Cu and Au. The PIC simulations exhibit the values of the sheath field at the target rear for Al, Cu, and Au, all of which are the same as the experiment. (author)
Mishima, Yosuke;
Habara, Hideaki;
Iwasaki, Tomoyuki;
Kikuyama, Kenshiro;
Kono, Takuya;
Morioka, Tomoya;
Morita, Kiyoshi;
Yabuuchi, Toshinori;
Tanaka, Kazuo A.;
[1]
Nishiuchi, Mamiko;
Yogo, Akifumi;
Pirozhkov, Alexander S.;
Fukuda, Yuji;
Ogura, Koichi;
Kondo, Kiminori;
[2]
Tanimoto, Tsuyoshi;
[3]
Sentoku, Yasuhiko;
[4]
Johzaki, Tomoyuki
[5]
- Osaka Univ., Graduate School of Engineering, Suita, Osaka (Japan)
- Japan Atomic Energy Agency, Kansai Photon Science Institute, Kizugawa, Kyoto (Japan)
- Kochi National College of Technology, Dept. of Electrical Engineering and Information Science, Nangoku, Kochi (Japan)
- Dept. of Physics, Univ. of Nevada, Nevada (United States)
- Hiroshima Univ., Graduate School of Engineering, Higashi-Hiroshima, Hiroshima (Japan)
Citation Formats
Mishima, Yosuke, Habara, Hideaki, Iwasaki, Tomoyuki, Kikuyama, Kenshiro, Kono, Takuya, Morioka, Tomoya, Morita, Kiyoshi, Yabuuchi, Toshinori, Tanaka, Kazuo A., Nishiuchi, Mamiko, Yogo, Akifumi, Pirozhkov, Alexander S., Fukuda, Yuji, Ogura, Koichi, Kondo, Kiminori, Tanimoto, Tsuyoshi, Sentoku, Yasuhiko, and Johzaki, Tomoyuki.
Material dependence of energy spectra of fast electrons generated by use of high contrast laser.
Japan: N. p.,
2013.
Web.
Mishima, Yosuke, Habara, Hideaki, Iwasaki, Tomoyuki, Kikuyama, Kenshiro, Kono, Takuya, Morioka, Tomoya, Morita, Kiyoshi, Yabuuchi, Toshinori, Tanaka, Kazuo A., Nishiuchi, Mamiko, Yogo, Akifumi, Pirozhkov, Alexander S., Fukuda, Yuji, Ogura, Koichi, Kondo, Kiminori, Tanimoto, Tsuyoshi, Sentoku, Yasuhiko, & Johzaki, Tomoyuki.
Material dependence of energy spectra of fast electrons generated by use of high contrast laser.
Japan.
Mishima, Yosuke, Habara, Hideaki, Iwasaki, Tomoyuki, Kikuyama, Kenshiro, Kono, Takuya, Morioka, Tomoya, Morita, Kiyoshi, Yabuuchi, Toshinori, Tanaka, Kazuo A., Nishiuchi, Mamiko, Yogo, Akifumi, Pirozhkov, Alexander S., Fukuda, Yuji, Ogura, Koichi, Kondo, Kiminori, Tanimoto, Tsuyoshi, Sentoku, Yasuhiko, and Johzaki, Tomoyuki.
2013.
"Material dependence of energy spectra of fast electrons generated by use of high contrast laser."
Japan.
@misc{etde_22229168,
title = {Material dependence of energy spectra of fast electrons generated by use of high contrast laser}
author = {Mishima, Yosuke, Habara, Hideaki, Iwasaki, Tomoyuki, Kikuyama, Kenshiro, Kono, Takuya, Morioka, Tomoya, Morita, Kiyoshi, Yabuuchi, Toshinori, Tanaka, Kazuo A., Nishiuchi, Mamiko, Yogo, Akifumi, Pirozhkov, Alexander S., Fukuda, Yuji, Ogura, Koichi, Kondo, Kiminori, Tanimoto, Tsuyoshi, Sentoku, Yasuhiko, and Johzaki, Tomoyuki}
abstractNote = {We studied the material dependence of electron acceleration with ultra-intense laser light at an intensity of 5x10{sup 19} W/cm{sup 2}. Recent particle simulations have shown that the average energy of fast electrons stays lower than the prediction of ponderomotive scaling if intense laser light interacts directly with the target material. To control the fast electron energy spectra, we performed an experiment at the J-KAREN laser facility. The observed electron spectra show that the slope temperature for aluminum is 1.4 times higher than gold. The enhancement is strongly related to the average ionisation degree in the thin preplasma region in the PIC simulation result. The maximum proton energy reaches 10 MeV, and it shows the same values for Al, Cu and Au. The PIC simulations exhibit the values of the sheath field at the target rear for Al, Cu, and Au, all of which are the same as the experiment. (author)}
journal = []
issue = {1}
volume = {41}
journal type = {AC}
place = {Japan}
year = {2013}
month = {Jan}
}
title = {Material dependence of energy spectra of fast electrons generated by use of high contrast laser}
author = {Mishima, Yosuke, Habara, Hideaki, Iwasaki, Tomoyuki, Kikuyama, Kenshiro, Kono, Takuya, Morioka, Tomoya, Morita, Kiyoshi, Yabuuchi, Toshinori, Tanaka, Kazuo A., Nishiuchi, Mamiko, Yogo, Akifumi, Pirozhkov, Alexander S., Fukuda, Yuji, Ogura, Koichi, Kondo, Kiminori, Tanimoto, Tsuyoshi, Sentoku, Yasuhiko, and Johzaki, Tomoyuki}
abstractNote = {We studied the material dependence of electron acceleration with ultra-intense laser light at an intensity of 5x10{sup 19} W/cm{sup 2}. Recent particle simulations have shown that the average energy of fast electrons stays lower than the prediction of ponderomotive scaling if intense laser light interacts directly with the target material. To control the fast electron energy spectra, we performed an experiment at the J-KAREN laser facility. The observed electron spectra show that the slope temperature for aluminum is 1.4 times higher than gold. The enhancement is strongly related to the average ionisation degree in the thin preplasma region in the PIC simulation result. The maximum proton energy reaches 10 MeV, and it shows the same values for Al, Cu and Au. The PIC simulations exhibit the values of the sheath field at the target rear for Al, Cu, and Au, all of which are the same as the experiment. (author)}
journal = []
issue = {1}
volume = {41}
journal type = {AC}
place = {Japan}
year = {2013}
month = {Jan}
}