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論文

Applications of integral benchmark data

Palmiotti, G.*; Briggs, J. B.*; 久語 輝彦; Trumble, E.*; Kahler, A. C.*; Lancaster, D.*

Nuclear Science and Engineering, 178(3), p.295 - 310, 2014/11

 被引用回数:4 パーセンタイル:51.53(Nuclear Science & Technology)

国際炉物理実験データ保存プロジェクト(IRPhEP)および国際臨界安全ベンチマークプロジェクト(ICSBEP)は、炉物理分野や臨界安全分野に使われているデータと解析方法の検証、核データの検証、先進的なモデリング&シミュレーションや規制活動に対して、積分実験データを評価し提供している。本論文では、(1)不確かさ評価と炉定数調整、(2)原子力機構での設計検討における不確かさ評価、(3)核データ検証、(4)臨界安全での応用、(5)工業用途への支援の5つの応用について紹介する。

口頭

Hollow-atom Al X-ray spectra excited by PW laser pulses in foil and CH-buried targets

Pikuz, S. Jr.*; Wagenaars, E.*; Culfa, O.*; Dance, R.*; Rossall, A.*; Tallents, G.*; Faenov, A.*; K$"a$mpfer, T.*; Schulze, K.*; Uschmann, I.*; et al.

no journal, , 

Aluminum K-shell spectra from solid targets were measured during an experiment at Vulcan Petawatt facility. Laser pulses of very high contrast and 150 J of energy allowed interaction studies between the very high intensive laser field and solid state. Intense emission of exotic spectral lines related to the transitions in Al hollow atoms were observed from Al targets. Specifically for 1.5 micron thin foil target the hollow atom yield dominated the resonance line emission. It is suggested that the hollow atoms were predominantly excited by the impact of keV X-ray photons generated on the front surface of the target. On the contrary, the spectra of aluminum foils buried in several microns of CH demonstrated lower K-shell emission and contained much weaker yield of hollow-atom lines. In this case the laser did not interact directly with aluminum matter, so most probably hollow atoms excited by fast electrons penetrating the target.

口頭

Radiation properties of dense matter pumped by X-ray emission of plasma irradiated by laser intensities over 10$$^{20}$$ W/cm$$^{2}$$

Faenov, A.*; Colgan, J.*; Abdallah, J. Jr.*; Pikuz, S. A.*; Wagenaars, E.*; Booth, N.*; Brown, C. R. D.*; Culfa, O.*; Dance, R.*; Evans, R.*; et al.

no journal, , 

It was demonstrated that Hollow ions exotic states of matter, which are very far from equilibrium, can be formed by conventional optical laser technology when the laser intensity reached 10$$^{20}$$ W/cm$$^{2}$$ and approaches to the radiation dominant regime.

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