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    CHARGED-PARTICLE ACCELERATING DEVICE FOR METRIC-WAVE OPERATION
    11.
    发明专利
    CHARGED-PARTICLE ACCELERATING DEVICE FOR METRIC-WAVE OPERATION 未知

    公开(公告)号：CA1165440A

    公开(公告)日：1984-04-10

    申请号：CA372223

    申请日：1981-03-03

    Applicant: CGR MEV

    Inventor： LEBOUTET HUBERT

    IPC: G21K5/04 ,  H05H9/00

    Abstract: A CHARGED-PARTICLE ACCELERATING DEVICE FOR METRIC-WAVE OPERATION The particle-accelerating device comprises a charged-particle source, a linear accelerating structure formed by a series of accelerating resonant cavities, an electromagnetic wave generator for emitting a signal to be injected into at least one of the resonant cavities. Means are provided for applying a pulsed high voltage to the particle source and for scanning a target with the pulsed beam of accelerated particles. The electromagnetic wave generator comprises a thermionic tube having a cathode, an anode and at least one grid. At least one of the resonant cavities is electromagnetically coupled to the grid-anode space of the tube.

    Collimator with divergent aperture for beam of particles - esp. for neutron therapy, using stacks of lead or tungsten blocks moved synchronously to vary area of aperture
    12.
    发明专利
    Collimator with divergent aperture for beam of particles - esp. for neutron therapy, using stacks of lead or tungsten blocks moved synchronously to vary area of aperture 未知

    公开(公告)号：FR2524690A1

    公开(公告)日：1983-10-07

    申请号：FR8205438

    申请日：1982-03-30

    Applicant: CGR MEV

    Inventor： LEBOUTET HUBERT

    IPC: G21K1/04 ,  G21K1/02

    Abstract: The collimator has a principal axis of symmetry which can be aligned with a source of radiation. A square or rectangular aperture is obtd. by using four stacks of blocks. Each stack slides along the adjacent stacks to increase or decrease the area of the aperture; and each stack contains the same number of blocks which are aligned along the axis and absorb the radiation. Each block is located on a pivot lever so the stacks can slide w.r.t. each other; and the pivot levers are mounted on stacks of slides. In each stack, a single motor is used to move all the slides in a homothetic manner so the slope of the aperture remains constant An efficient biological shield is formed by the blocks, and a desired aperture with accurate dimensions is easily obtd..

    16.
    发明专利
    未知

    公开(公告)号：FR2466084A1

    公开(公告)日：1981-03-27

    申请号：FR7923598

    申请日：1979-09-21

    Applicant: CGR MEV

    Inventor： LEBOUTET HUBERT

    IPC: A61N5/10 ,  G21K1/02 ,  G21K5/04 ,  H05H3/06 ,  G21K5/10 ,  A61N5/00

    Abstract: An irradiation head permitting the positioning of the area to be treated and the checking of this position. This irradiation head, which is disposed downstream of the neutron target, is provided which a turret carried by a supporting plate and which can rotate about an axis zz perpendicular to said plate. The supporting plate has a central opening A of axis ZZ coinciding with the axis of the useful neutron beam and the axis of the collimator. The turret has three openings a1, a2, a3 which can successively face the opening A in accordance with the axis ZZ. Two of the openings a1, a2 are respectively associated with a light source S1 and an X-ray source S2 emitting beams of mean paths f1 and f2 equidistant with respect to axis zz, these beams being respectively designed for the positioning of the area to be treated and the checking of this position.

    Optical reflection range finder for distance determn. - has rotating emitter and receiver axes whose position is function of distance
    20.
    发明专利
    Optical reflection range finder for distance determn. - has rotating emitter and receiver axes whose position is function of distance 未知

    公开(公告)号：FR2522409A1

    公开(公告)日：1983-09-02

    申请号：FR8203265

    申请日：1982-02-26

    Applicant: CGR MEV

    Inventor： LEBOUTET HUBERT

    IPC: G01C3/10 ,  G01C3/18

    Abstract: The range finder has a light beam emitter, a receiver, a motor and an electronic unit. It is used to determine a distance along a reference direction between a first point and a second point (C) at whose level (75) the light beam is reflected or scattered towards the receiver. The emitter which contains a LED and the receiver which has at least one receiver diode to detect the reflected light have, respectively, an emission axis and a reception axis which cut the reference direction at the same points as they sweep along it. The emitter and receiver are set in synchronised rotational motion about rotational axes by means of the motor (21) in conjunction with the electronic unit until the emission and reception axes cross the reference direction at point (C) representing the distance to be measured. At this point the light beam is reflected towards the receiver, the angular position of the emitter or the receiver being then a function of the distance (D). The position is determined by means of a pickup.

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