Fabrication of disk-shaped, deuterated resorcinol/formaldehyde foam target for laser–plasma experiments
Authors:
Open Access
- 15 June 2021
- journal article
- letter
- Published by Cambridge University Press (CUP) in High Power Laser Science and Engineering
- Vol. 9
Abstract
Resorcinol/formaldehyde (RF) foam resin is an attractive material as a low-density target in high-power laser–plasma experiments because of its fine network structure, transparency in the visible region, and low-Z element (hydrogen, carbon, and oxygen) composition. In this study, we developed disk-shaped RF foam and deuterated RF foam targets with 40–200 μm thickness and approximately 100 mg/cm3 density having a network structure from 100 nm to a few micrometers cell size. By deuteration, the polymerization rate was drastically slowed down owing to kinetic isotope effects. These targets were used in high-power laser experiments where a megaelectronvolt proton beam was successfully generated.Keywords
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