Measurement of the electron density produced by the prepulse in an experiment of high energy proton beam generation

被引：0

作者：

Jeong, Tae Moon ^{[1
]}

Choi, Il Woo

Sung, Jae Hee

Kim, Hyung Taek

Hong, Kyung-Han

Yu, Tae Jun

Kim, Jung Hoon

Noh, Young-Chul

Ko, Do-Kyeong

Lee, Jongmin

Sagisaka, Akito

Yogo, Akifumi

Daido, Hiroyuki

机构：

[1] Gwangju Inst Sci & Technol, Adv Photon Res Inst, Kwangju 500712, South Korea

[2] Japan Atom Energy Agcy, Adv Photon Res Ctr, Kyoto 6190215, Japan

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2007年 / 50卷 / 01期

关键词：

electron density; interferometer; proton beam generation;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The characteristics of the preplasma, such as the electron density and its profile, were investigated from a measurement of the phase shift due to the preplasma in an experiment on high energy proton beam generation. The electron density and its profile were calculated from the measured phase shifts, and their dependences on the prepulse intensity and the time delay were investigated. Although the size of the electron density depended on the prepulse intensity, the maximum electron density ranged from 1.5 x 10(19) to 2.1 x 10(19) cm(-3), irrespective of the prepulse intensity and the time delay in the picosecond range. The analysis showed that a preplasma having an electron density of similar to 10(19) cm(-3) existed on a target before the main laser pulse arrived at the target for the generation of high energy proton beams.

引用

页码：34 / 39

页数：6

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