Rinderknecht H G, Johnson M Gatu, Zylstra A B, Sinenian N, Rosenberg M J, Frenje J A, Waugh C J, Li C K, Sèguin F H, Petrasso R D, Rygg J R, Kimbrough J R, MacPhee A, Collins G W, Hicks D, Mackinnon A, Bell P, Bionta R, Clancy T, Zacharias R, Döppner T, Park H S, LePape S, Landen O, Meezan N, Moses E I, Glebov V U, Stoeckl C, Sangster T C, Olson R, Kline J, Kilkenny J
Massachusetts Institute of Technology, Cambridge, 02139, USA.
Rev Sci Instrum. 2012 Oct;83(10):10D902. doi: 10.1063/1.4731000.
The particle-time-of-flight (pTOF) diagnostic, fielded alongside a wedge range-filter (WRF) proton spectrometer, will provide an absolute timing for the shock-burn weighted ρR measurements that will validate the modeling of implosion dynamics at the National Ignition Facility (NIF). In the first phase of the project, pTOF has recorded accurate bang times in cryogenic DT, DT exploding pusher, and D(3)He implosions using DD or DT neutrons with an accuracy better than ±70 ps. In the second phase of the project, a deflecting magnet will be incorporated into the pTOF design for simultaneous measurements of shock- and compression-bang times in D(3)He-filled surrogate implosions using D(3)He protons and DD-neutrons, respectively.
与楔形射程滤波器（WRF）质子谱仪一起使用的粒子飞行时间（pTOF）诊断设备，将为冲击-烧蚀加权ρR测量提供绝对时间，这将验证国家点火装置（NIF）内爆动力学的建模。在项目的第一阶段，pTOF已使用DD或DT中子，在低温DT、DT爆炸推进器以及D（3）He内爆中记录了精确的起爆时间，精度优于±70皮秒。在项目的第二阶段，将在pTOF设计中加入一个偏转磁体，以便分别使用D（3）He质子和DD中子，同时测量填充D（3）He的替代内爆中的冲击起爆时间和压缩起爆时间。
