Optical fiducial timing system for X-ray streak cameras with aluminum
coated optical fiber ends
    1.
    发明授权
    Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends 失效
    带有铝质光纤端头的X射线条纹相机的光学基准定时系统

    公开(公告)号:US4730106A

    公开(公告)日:1988-03-08

    申请号:US937792

    申请日:1986-12-04

    IPC分类号: H01J29/89 H01J31/50 H01J40/14

    CPC分类号: H01J29/892

    摘要: An optical fiducial timing system is provided for use with interdependent groups of X-ray streak cameras (18). The aluminum coated (80) ends of optical fibers (78) are positioned with the photocathodes (20, 60, 70) of the X-ray streak cameras (18). The other ends of the optical fibers (78) are placed together in a bundled array (90). A fiducial optical signal (96), that is comprised of 2.omega. or 1.omega. laser light, after introduction to the bundled array (90), travels to the aluminum coated (82) optical fiber ends and ejects quantities of electrons (84) that are recorded on the data recording media (52) of the X-ray streak cameras (18). Since both 2.omega. and 1.omega. laser light can travel long distances in optical fiber with only a slight attenuation, the initial arial power density of the fiducial optical signal (96) is well below the damage threshold of the fused silica or other material that comprises the optical fibers (78, 90). Thus the fiducial timing system can be repeatably used over long durations of time.

    摘要翻译: 提供光学基准定时系统,用于与相互依赖的X射线条纹照相机组(18)一起使用。 光纤(78)的铝涂层(80)端部与X射线条纹照相机(18)的光电阴极(20,60,70)定位。 光纤(78)的另一端放置在捆扎阵列(90)中。 在引入到束状阵列(90)之后,由2ω或1ω激光组成的基准光信号(96)行进到铝涂层(82)光纤端,并喷射数量的电子(84) 被记录在X射线条纹照相机(18)的数据记录介质(52)上。 由于2Ω和1Ω激光都可以在仅具有轻微衰减的光纤中行进长距离,所以基准光信号(96)的初始心率功率密度远低于熔融二氧化硅或其它材料的损伤阈值 光纤(78,90)。 因此,可以在长时间内重复使用基准定时系统。

    Three Wavelength Coupling for Fusion Capsule Hohlraums
    2.
    发明申请
    Three Wavelength Coupling for Fusion Capsule Hohlraums 审中-公开
    用于融合胶囊的三个波长耦合Hohlraum

    公开(公告)号:US20120057665A1

    公开(公告)日:2012-03-08

    申请号:US13108895

    申请日:2011-05-16

    IPC分类号: H05H1/02

    CPC分类号: G21B1/23

    摘要: Using three tunable wavelengths on different cones of laser beams the energy transfer between beams can be tuned to redistribute the energy within the cones of beams most prone to backscatter instabilities. Using a third wavelength provides a greater level of control of the laser energy distribution and coupling in the hohlraum, to significantly reduce stimulated Raman scattering losses and increase the hohlraum radiation drive, yet maintain implosion symmetry.

    摘要翻译: 在不同锥形的激光束上使用三个可调波长,可以调整光束之间的能量传递,以重新分布最容易发生后向散射不稳定的光束内的能量。 使用第三波长提供更大程度的控制激光能量分布和耦合在hohlraum,以显着减少受激拉曼散射损失和增加霍尔辐射驱动,但保持内爆对称性。

    Method and apparatus for producing durationally short ultraviolet or
X-ray laser pulses
    3.
    发明授权
    Method and apparatus for producing durationally short ultraviolet or X-ray laser pulses 失效
    用于生产持续短时紫外线或X射线激光脉冲的方法和装置

    公开(公告)号:US4731786A

    公开(公告)日:1988-03-15

    申请号:US46020

    申请日:1987-05-05

    摘要: A method and apparatus is disclosed for producing ultraviolet or X-ray laser pulses of short duration (32). An ultraviolet or X-ray laser pulse of long duration (12) is progressively refracted, across the surface of an opaque barrier (28), by a streaming plasma (22) that is produced by illuminating a solid target (16, 18) with a pulse of conventional line focused high power laser radiation (20). The short pulse of ultraviolet or X-ray laser radiation (32), which may be amplified to high power (40, 42), is separated out by passage through a slit aperture (30) in the opaque barrier (28).

    摘要翻译: 公开了用于产生短持续时间(32)的紫外或X射线激光脉冲的方法和装置。 长时间(12)的紫外线或X射线激光脉冲通过通过用固体靶(16,18)照射而产生的流动等离子体(22)逐渐折射穿过不透明屏障(28)的表面, 传统的线路聚焦高功率激光辐射的脉冲(20)。 通过穿过不透光屏障(28)中的狭缝孔(30)将紫外线或X射线激光辐射(32)的短脉冲放大到高功率(40,42)。