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    • 2. 发明授权
    • Arrangement for automatically controlling the frequency of a
hyperfrequency generator feeding a resonant element subjected to
fluctuations in temperature
    • 用于自动控制供给受到温度波动的谐振元件的超频发生器的频率的布置
    • US4121173A
    • 1978-10-17
    • US768370
    • 1977-02-14
    • Guy AzamAndre BensussanClaude Levaillant
    • Guy AzamAndre BensussanClaude Levaillant
    • H01P7/06H03L7/04H05H7/02H05H9/00H03B3/04
    • H05H7/02H03L7/04
    • An arrangement enables the frequency variation of a resonant element (an accelerating section for example) to be followed in dependence upon its temperature and the frequency of the hyperfrequency generator G feeding this resonant element Q to be controlled in dependence upon the frequency variations thereof. The arrangement comprises at least one reference cavity C associated with means for allowing the circulation of cooling fluid along the walls of said reference cavity and with heat supply for bringing it, at any instant, to the temperature of the resonant element Q, means for measuring the amplitude variation .DELTA.a of the signal corresponding to the frequency variation of said reference cavity C in terms of its temperature variation and a frequency variation system controlled by a signal proportional to the amplitude variation .DELTA.a, for modifying the operating frequency of the generator G. This arrangement makes it possible to improve the performance of medical accelerators of which the thermal time constant is considerable in relation to their short operating time.
    • 根据其谐振元件(例如加速部分)的频率变化,可以根据其温度和频率发生器G的频率,根据其频率变化来馈送该谐振元件Q进行控制。 该装置包括至少一个参考空腔C,其与用于允许冷却流体沿着所述参考空腔的壁循环的装置和用于使其在任何时刻使其在谐振元件Q的温度下的热供应的装置相关联, 根据其温度变化,对应于所述基准空腔C的频率变化的信号的幅度变化量DELTA a和由与振幅变化量DELTA a成比例的信号控制的频率变化系统,用于修改发电机G的工作频率 这种布置使得可以提高热时间常数相对于其短的运行时间相当可观的医用促进剂的性能。
    • 3. 发明授权
    • Microwave drying device for drying products in form of grains
    • 用于干燥谷物形式的产品的微波干燥装置
    • US4332091A
    • 1982-06-01
    • US156465
    • 1980-06-04
    • Andre BensussanGuy Azam
    • Andre BensussanGuy Azam
    • F26B3/34H05B6/78F26B23/08
    • H05B6/784F26B3/343H05B6/78H05B2206/046
    • A microwave drying device for drying products in the form of grains, comprising a microwave source, at least one waveguide coupled electromagnetically to the microwave source, means for injecting into this waveguide the product to be treated, means for driving this product in the waveguide, means for causing a forced circulation of dry air in the waveguide, means for discharging the air charged with the humidity given up by the product to be treated, and means for collecting the dried product in this waveguide, wherein the waveguide is closed on itself so as to form a ring, a part of this waveguide forming a channel through which the product to be treated may pass, said channel being connected at its ends to pipes for feeding therein and removing therefrom the product, these pipes forming cut-off waveguide.
    • 一种用于干燥晶粒形式的产品的微波干燥装置,包括微波源,至少一个与微波源电磁耦合的波导管,用于将待处理产品注入该波导的装置,用于在波导中驱动该产品的装置, 用于使波导中的干燥空气强制循环的装置,用于排出被待处理产品放出的湿气的装置,以及用于在该波导中收集干燥产品的装置,其中波导自身封闭 为了形成环,该波导的一部分形成通道,待处理产品可以通过该通道,所述通道在其端部连接到用于馈送到其中的管道并从其中移除产品,这些管道形成截止波导。
    • 7. 发明授权
    • Electron gun for providing electrons grouped in short pulses
    • 用于提供以短脉冲分组的电子的电子枪
    • US5506473A
    • 1996-04-09
    • US706674
    • 1991-05-29
    • Jeanne AucouturierAndre BensussanHubert Leboutet
    • Jeanne AucouturierAndre BensussanHubert Leboutet
    • H05H7/02H05H7/08H05H7/18H01J25/10
    • H05H7/18H05H7/02H05H7/08
    • This gun comprises a cathode K, a grid G, and an anode A between which the applied voltages are radio-frequency voltages. The cathode is disposed on the central conductor of a coaxial cavity, facing said grid terminating said cavity. Said cavity is terminated at the other end by a short-circuit and includes a coaxial branch line so as to resonate at two frequencies F.sub.1 and F.sub.2 multiple of f.sub.0, whose beating induces a radio-frequency grid-cathode voltage. Said grid terminates another coaxial cavity whose central conductor is hollow and whose end facing said grid forms the anode. said other coaxial cavity resonator is excited and resonates at a frequency F.sub.0 multiple of f.sub.0, which induces a radio-frequency anode-grid voltage.A proper selection of the frequencies F.sub.0, F.sub.1, F.sub.2 allows to obtain electrons bunches of very short duration.
    • 该枪包括阴极K,栅极G和阳极A,其间施加的电压是射频电压。 阴极设置在同轴腔体的中心导体上,面对所述栅极终止所述空腔。 所述空腔在另一端通过短路端接,并且包括同轴分支线,以便以两倍的频率F1和F2谐振f0的倍数,其跳动引起射频栅极 - 阴极电压。 所述栅极终止另一同轴腔,其中心导体是中空的并且其面向所述栅格的一端形成阳极。 所述其他同轴腔谐振器被激发并以f0的频率F0谐振,这引起射频阳极电网电压。 频率F0,F1,F2的适当选择允许获得非常短的持续时间的电子束。