| 摘要 |
A device is disclosed for simple and quick disconnection of a target assembl y at a cyclotron accelerator producing an ion beam irradiating the target assembly for PET radioisotope production. The device consists of a target bo dy presenting a target space (20) for introduction of target media to be irradiated by the ion beam from the cyclotron accelerator. The target body i s separated into three portions by means of two separation window foils. The first separation window (6) separates the internal space (20) of a first bod y portion (2) from a further internal space portion (21) of a second target bo dy portion (3) and the second separation window (7) separates a further interna l space (21) of the second target body portion (3) from an internal space (22) of a third target body portion (4) being in communication with the vacuum space of the cyclotron. This third body portion (4) forms a bayonet fitting to a corresponding bayonet fitting (5) fixed to the cyclotron vacuum casing at a position where the ion beam is extracted, whereby the corresponding bayonet fitting also constitutes an insulating member. The device can by a small twisting be quickly released from the vacuum casing of the cyclotron after that the vacuum has been removed for necessary maintenance and service.</SDO AB>
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