Optimization of laser hole drilling process on thick gold spherical hohlraums for intense X-ray generation

Pramana

S Jain¹  P K Tripathi¹  P D Gupta¹  S R Patwa1¹  A S Joshi¹ 

[1] Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India$$

关键词: Hohlraum;    plasma.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Hohlraums of high-𝑍 materials are used as soft X-ray sources to study indirect drive fusion, equation of state of materials etc. Here, we describe a method to develop spherical gold hohlraums of large wall thickness (∼ 70–80 𝜇m) on which laser entrance and diagnostics holes are drilled using a 10 Hz Nd:YLF laser. Holes of different diameters have been drilled with lenses of different focal lengths. The back wall of the hohlraum is protected from the damage by shutting off the laser at pre-determined hole drilling time.

【 授权许可】

Unknown