| Autor: |
Singh, S., Armstrong, C. D., Kang, N., Ren, L., Liu, H., Hua, N., Rusby, D. R., Klimo, O., Versaci, R., Zhang, Y., Sun, M., Zhu, B., Lei, A., Ouyang, X., Lancia, L., Laso Garcia, A., Wagner, A., Cowan, T. E., Zhu, J., Schlegel, T., Weber, S., McKenna, P., Neely, D., Tikhonchuk, V., Kumar, D. |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Publication date: 2021-01-06 Open accessDOI: 10.14278/rodare.825Versions: 10.14278/rodare.826License: CC-BY-4.0 |
| Popis: |
Relativistic electrons generated by the interaction of petawatt-class short laser pulses with solid targets can be used to generate bright x-rays via bremsstrahlung. The efficiency of laser energy transfer into these electrons depends on multiple parameters including the focused intensity and pre-plasma level. This paper reports experimental results from the interaction of a high intensity petawatt-class glass laser pulses with solid targets at a maximum intensity of 1019 W cm−2. In-situ measurements of specularly reflected light are used to provide an upper bound of laser absorption and to characterize focused laser intensity, the pre-plasma level and the generation mechanism of second harmonic light. The measured spectrum of electrons and bremsstrahlung radiation provide information about the efficiency of laser energy transfer. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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