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    • 48. 发明授权
    • Fast transition RF impedance matching network for plasma reactor ignition
    • 用于等离子体反应器点火的快速转换RF阻抗匹配网络
    • US5815047A
    • 1998-09-29
    • US563849
    • 1995-11-27
    • Carl A. SorensenWendell T. BloniganJohn White
    • Carl A. SorensenWendell T. BloniganJohn White
    • H03H7/40
    • H03H7/40
    • An impedance matching network for an RF coupled plasma reactor having RF excitation apparatus receiving RF power through the impedance matching network from an RF generator for producing a plasma in the reactor has at least one capacitor connected to the output of the RF generator and having a capacitance value providing an impedance match to the plasma impedance during a steady state of the plasma, at least a first rapidly tunable capacitor connected in parallel with the one capacitor, the rapidly tunable capacitor being rapidly switchable between a high capacitance value providing a match to the plasma impedance during the onset of plasma ignition and a lesser minimum capacitance value, and a controller for rapidly switching the rapidly tunable capacitor from the high to the lesser capacitance value upon reaching the plasma steady state.
    • 一种用于RF耦合等离子体反应器的阻抗匹配网络,其具有RF激发装置,其通过来自RF发生器的阻抗匹配网络接收RF功率,用于在电抗器中产生等离子体,具有连接到RF发生器输出的至少一个电容器, 在等离子体的稳定状态期间提供与等离子体阻抗的阻抗匹配的值,至少与一个电容器并联连接的第一快速可调谐电容器,快速可调谐电容器可在提供与等离子体的匹配的高电容值之间快速切换 等离子体点火开始期间的阻抗和较小的最小电容值,以及用于在快速调节电容器达到等离子体稳态时从快速切换到较小电容值的控制器。
    • 49. 发明授权
    • Window assembly for a deep well scintillation detector
    • 用于深井闪烁检测器的窗组件
    • US4360733A
    • 1982-11-23
    • US185292
    • 1980-09-08
    • William P. NovakIval ToepkeJohn White
    • William P. NovakIval ToepkeJohn White
    • G01T1/20
    • G01T1/20
    • A circular glass window in the form of a shallow, truncated cone having parallel faces is nested within and equidistantly spaced from a metal retaining ring defining at its inner periphery a shallow, tapered, smooth-wall bore having a sloped sidewall to which the correspondingly sloped edge of the glass window is bonded by a thin layer of epoxy adhesive composition constituting an annular hermetic seal of constant predetermined thickness for optimum strength. The retaining ring, with the glass window mounted therein, is welded to the end of a tubelike metal housing containing a cylindrical scintillation crystal coaxially mounted therein, the larger diameter base end or inner face of the truncated, cone-shaped window being optically coupled to and adjacent one end of the crystal. The crystal is biased toward the inner face of the window to apply an evenly distributed compression force to the annular epoxy-formed seal to aid in maintaining its hermetic integrity under adverse temperature conditions.
    • 具有平行面的浅的截头圆锥体形状的圆形玻璃窗嵌入在与其内周边限定的一个浅的锥形的平滑壁孔内并等距离地间隔开,该孔具有倾斜的侧壁,相应地倾斜 玻璃窗的边缘通过环氧树脂粘合剂组合物的薄层粘合,构成具有恒定预定厚度的环形密封,以获得最佳强度。 将安装有玻璃窗的保持环焊接到同轴地安装在其中的圆柱形闪烁晶体的管状金属壳体的端部,所述截锥形窗口的较大直径的基端或内表面被光耦合到 和晶体的相邻一端。 晶体被偏压到窗的内表面,以将均匀分布的压缩力施加到环形环氧形成的密封件上,以有助于在不利的温度条件下保持其气密完整性。