物理学报
物理學報
물이학보
2013年
7期
507-515
,共9页
孙奇志?%方东凡%刘伟%秦卫东%贾月松%赵小明%韩文辉
孫奇誌?%方東凡%劉偉%秦衛東%賈月鬆%趙小明%韓文輝
손기지?%방동범%류위%진위동%가월송%조소명%한문휘
脉冲功率技术%反场构形%磁化等离子体%磁化靶聚变
脈遲功率技術%反場構形%磁化等離子體%磁化靶聚變
맥충공솔기술%반장구형%자화등리자체%자화파취변
pulsed power%field reversed configuration%magnetized plasma%magnetized target fusion
本文主要介绍“荧光-1”实验装置物理参数设计,并依据半经验公式预估在实验装置上可能达到的磁化等离子体状态参数.理论设计结果表明:“荧光-1”实验装置最大放电电流1.5 MA,四分之一周期3μs,最大反向磁场4 T;以此为实验平台,当θ箍缩线圈内充气压力50 mTorr(D2气体)时,形成的等离子体靶直径约为2 cm,长度17 cm;等离子体靶密度6.6×1016 cm?3,温度(Ti+Te )约300 eV;等离子体平均β值为0.95.该状态参数接近磁化靶聚变所要求的等离子体靶初始状态参数.
本文主要介紹“熒光-1”實驗裝置物理參數設計,併依據半經驗公式預估在實驗裝置上可能達到的磁化等離子體狀態參數.理論設計結果錶明:“熒光-1”實驗裝置最大放電電流1.5 MA,四分之一週期3μs,最大反嚮磁場4 T;以此為實驗平檯,噹θ箍縮線圈內充氣壓力50 mTorr(D2氣體)時,形成的等離子體靶直徑約為2 cm,長度17 cm;等離子體靶密度6.6×1016 cm?3,溫度(Ti+Te )約300 eV;等離子體平均β值為0.95.該狀態參數接近磁化靶聚變所要求的等離子體靶初始狀態參數.
본문주요개소“형광-1”실험장치물리삼수설계,병의거반경험공식예고재실험장치상가능체도적자화등리자체상태삼수.이론설계결과표명:“형광-1”실험장치최대방전전류1.5 MA,사분지일주기3μs,최대반향자장4 T;이차위실험평태,당θ고축선권내충기압력50 mTorr(D2기체)시,형성적등리자체파직경약위2 cm,장도17 cm;등리자체파밀도6.6×1016 cm?3,온도(Ti+Te )약300 eV;등리자체평균β치위0.95.해상태삼수접근자화파취변소요구적등리자체파초시상태삼수.
“Ying-Guang 1” is a multi-bank pulsed power device for investigating the formation, confinement and instability of the high temperature and high density field-reversed configuration (FRC) plasma injector for the magnetized target fusion (MTF). This paper described the physical design of the“Ying-Guang 1”device which will be constructed in 2013 at the Institute of Fluid Physics, CAEP. Theoretical results show that the peak reversed current and magnetic field of this device are 1.5 MA and 4 T respectively with the rise time of 3 μs. Based on the semi-empirical formula developed by Tuszewski the magnetized plasma of equilibrium density 6.6×1016 cm?3 and temperature (Ti+Te)~300 eV could be achieved on the“Ying-Guang 1”device when the initially filled D2 gas pressure is about 50 mTorr, and the length of the FRC separatrix is 17 cm with a radius of 2 cm. The average ratio of the thermal pressure to magnetic pressureβ is about 0.95, and the magnetic field embedded in plasma is 0.5 T. From the adiabatic compression scaling laws and the corresponding ignition conditions, the formated FRC plasma target of the“Ying-Guang 1”device approaches the necessity of the MTF if the radius compression ratio of the solid metal liner were set to 10.