基于皮秒拍瓦激光產(chǎn)生的高能X射線源具有強(qiáng)度高、脈寬短、焦點(diǎn)小的特點(diǎn),利用這種X射線源發(fā)展出來的高時空分辨率X射線點(diǎn)投影背光照相是強(qiáng)加載條件下材料動態(tài)響應(yīng),以及慣性約束聚變等高能量密度物理研究中亟需的重要診斷技術(shù)。目前,研究人員主要依靠TITAN、OMEGA-EP和神光Ⅱ升級等大型皮秒拍瓦激光裝置,對皮秒拍瓦激光與固體靶相互作用產(chǎn)生的X射線的能譜、轉(zhuǎn)換效率、分辨率等關(guān)鍵參數(shù)進(jìn)行了研究,發(fā)展了點(diǎn)投影背光照相技術(shù),并開展了動態(tài)演示實(shí)驗(yàn),成功獲得了慣性約束聚變內(nèi)爆過程和沖擊加載材料微噴過程的演示圖像。 

【文章來源】：中國激光. 2020,47(05)北大核心EICSCD

【文章頁數(shù)】：9 頁

【文章目錄】：
1 引 言
2 皮秒拍瓦激光裝置
3 基于皮秒拍瓦激光的高能X射線源
4 X射線背光照相技術(shù)
5 結(jié) 論


【參考文獻(xiàn)】：
期刊論文
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