Oxford Centre for High Energy Density Science (OxCHEDS)

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14aQA-3 コーンシリンダー爆縮と超高強度レーザーによる長尺高密度プラズマ加熱(プラズマ基礎・科学 : レーザー応用, 基礎実験, 領域 2)

(2004) 169

Authors:

中村 浩隆, 兒玉 了祐, 松岡 健之, 薮内 俊毅, 犬伏 雄一, P Norreys, 白神 宏之, 近藤 公伯, 田中 和夫, 井澤 靖和, GODグループ, MTグループ, Tグループ
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High power laser production of short-lived isotopes for positron emission tomography

Journal of Physics D Applied Physics 37:16 (2004) 2341-2345

Authors:

KWD Ledingham, P McKenna, T McCanny, S Shimizu, JM Yang, L Robson, J Zweit, JM Gillies, J Bailey, GN Chimon, RJ Clarke, D Neely, PA Norreys, JL Collier, RP Singhal, MS Wei, SPD Mangles, P Nilson, K Krushelnick, M Zepf

Abstract:

Positron emission tomography (PET) is a powerful diagnostic/imaging technique requiring the production of the short-lived positron emitting isotopes 11C, 13N, 15O and 18F by proton irradiation of natural/enriched targets using cyclotrons. The development of PET has been hampered due to the size and shielding requirements of nuclear installations. Recent results show that when an intense laser beam interacts with solid targets, megaelectronvolt (MeV) protons capable of producing PET isotopes are generated. This report describes how to generate intense PET sources of 11C and 18F using a petawatt laser beam. The work describing the laser production of 18F through a (p,n) 18O reaction, and the subsequent synthesis of 2-[18F] is reported for the first time. The potential for developing compact laser technology for this purpose is discussed.
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Electronic conduction in shock-compressed water

Physics of Plasmas AIP Publishing 11:8 (2004) l41-l44

Authors:

PM Celliers, GW Collins, DG Hicks, M Koenig, E Henry, A Benuzzi-Mounaix, D Batani, DK Bradley, LB Da Silva, RJ Wallace, SJ Moon, JH Eggert, KKM Lee, LR Benedetti, R Jeanloz, I Masclet, N Dague, B Marchet, M Rabec Le Gloahec, Ch Reverdin, J Pasley, O Willi, D Neely, C Danson
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Laboratory measurements of 0.7 GG magnetic fields generated during high-intensity laser interactions with dense plasmas

Physical Review E Statistical Nonlinear and Soft Matter Physics 70:2 2 (2004) 1-26401

Authors:

U Wagner, M Tatarakis, A Gopal, FN Bee, EL Clark, AE Dangor, RG Evans, MG Haines, SPD Mangles, PA Norreys, MS Wei, M Zepf, K Krushelnick

Abstract:

Measurements of ultrahigh magnetic fields produced during intense laser interaction with solids were presented. Polarization measurements of high-order laser harmonics suggest the existence of magnetic field strengths of 0.7±0.1 GG. It was found that denser regions of the plasma can be probed using higher order harmonics. The technique was found to be useful for the measurements of multi-GG level magnetic fields.
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Charge-State Distribution and Doppler Effect in an Expanding Photoionized Plasma

Physical Review Letters American Physical Society (APS) 93:5 (2004) 055002

Authors:

ME Foord, RF Heeter, PAM van Hoof, RS Thoe, JE Bailey, ME Cuneo, H-K Chung, DA Liedahl, KB Fournier, GA Chandler, V Jonauskas, R Kisielius, LP Mix, C Ramsbottom, PT Springer, FP Keenan, SJ Rose, WH Goldstein
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