Measurements of fast electron scaling generated by petawatt laser systems
Measurements of fast electron scaling generated by petawatt laser systems
复制标题
DOI：
10.1063/1.3155086
复制
发表时间：
2009-06
影响因子：
2.2
通讯作者：
T. Tanimoto;H. Habara;R. Kodama;M. Nakatsutsumi;K. Tanaka;K. Lancaster;James C. Green;R. Scott;M. Sherlock;P. Norreys;R. Evans;M. Haines;S. Kar;M. Zepf;J. King;T. Ma;M. Wei;T. Yabuuchi;F. Beg;M. Key;P. Nilson;R. Stephens;H. Azechi;K. Nagai;T. Norimatsu;K. Takeda;J. Valente;J. Davies
中科院分区：
文献类型：
--
作者：
T. Tanimoto;H. Habara;R. Kodama;M. Nakatsutsumi;K. Tanaka;K. Lancaster;James C. Green;R. Scott;M. Sherlock;P. Norreys;R. Evans;M. Haines;S. Kar;M. Zepf;J. King;T. Ma;M. Wei;T. Yabuuchi;F. Beg;M. Key;P. Nilson;R. Stephens;H. Azechi;K. Nagai;T. Norimatsu;K. Takeda;J. Valente;J. Davies
用电子能谱仪测量了1018~1021W cm−~2范围内和不同靶材料的快电子能谱。在卢瑟福·阿普尔顿实验室和大阪大学的拍瓦激光设施上进行了几次实验活动，脉冲持续时间从0.5ps到5ps不等，这与即将到来的快速点火积分实验有关。入射角度也从垂直入射变为p偏振下的40°。结果证实，在不同的辐照条件下，快电子在较高强度下的有质动势能有所降低。
Fast electron energy spectra have been measured for a range of intensities between 1018 and 1021Wcm−2 and for different target materials using electron spectrometers. Several experimental campaigns were conducted on petawatt laser facilities at the Rutherford Appleton Laboratory and Osaka University, where the pulse duration was varied from 0.5to5ps relevant to upcoming fast ignition integral experiments. The incident angle was also changed from normal incidence to 40° in p-polarized. The results confirm a reduction from the ponderomotive potential energy on fast electrons at the higher intensities under the wide range of different irradiation conditions.