Abstract
Simulations show enhanced free-free and free-bound x-ray emission from laser-produced plasmas for both porous and solid targets irradiated by picosecond laser pulses under different prepulse conditions. The porous targets are modeled as a thick solid substrate over-coated with a thin porous layer. Using porous targets and prepulses shows that x-ray yields can be enhanced significantly over single pulses on solid density targets. The optimum conditions of prepulse and porous layer density are investigated by simulations with a fluid and atomic physics code. (C) 2010 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 2936-2941 |
| Number of pages | 6 |
| Journal | Physics Letters A |
| Volume | 374 |
| Issue number | 29 |
| DOIs | |
| Publication status | Published - 28 Jun 2010 |
Keywords
- Laser plasmas
- X-ray sources
- Porous target
- Laser prepulse
- COLLISIONALLY-PUMPED LASER
- ND-YAG LASER
- FEMTOSECOND-LASER
- PHOTOELECTRON-SPECTROSCOPY
- GENERATION ENHANCEMENT
- SUBPICOSECOND LASER
- AQUEOUS-SOLUTIONS
- ALUMINUM PLASMA
- SILICON TARGET
- HIGH-INTENSITY