公开(公告)号：US5183645A

公开(公告)日：1993-02-02

申请号：US625550

申请日：1990-12-11

Applicant: Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Vincent Guyon ,  Rodolphe Chomel ,  Andre Deloge ,  Pierre Doutreluigne ,  Henri Le Roy

Inventor： Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Vincent Guyon ,  Rodolphe Chomel ,  Andre Deloge ,  Pierre Doutreluigne ,  Henri Le Roy

IPC: G21C19/46 ,  G21F9/06

CPC classification number: G21C19/46 ,  G21F9/06 ,  Y02W30/883

Abstract: The invention concerns the recovery of Pu (IV) by using crown compounds.According to the invention, the aqueous solution containing the plutonium (IV) is placed in contact with at least one crown compound, for example DCH 18C6, dissolved in an organic diluting agent, such as benzonitrile. In the case where the solution only contains traces of Pu, it is possible to use a crown compound secured to a solid phase, such as silica.The aqueous solution is a concentrated solution of fission products, an effluent originating from an irradiated nuclear fuel reprocessing installation or a concentrated solution of plutonium with americium.

Abstract translation: 本发明涉及通过使用冠状化合物回收Pu（IV）。 根据本发明，含有钚（IV）的水溶液与至少一种溶解在有机稀释剂如苄腈中的冠状化合物（例如DCH 18C6）接触。 在溶液仅含有痕量Pu的情况下，可以使用固定在固相上的冠状化合物，例如二氧化硅。 水溶液是裂变产物的浓缩溶液，源自辐照的核燃料后处理装置的流出液或钚与钚的浓缩溶液。

公开(公告)号：US4946277A

公开(公告)日：1990-08-07

申请号：US249894

申请日：1988-09-27

Applicant: Patrice Marquet ,  Jean-Marc Lemaire ,  Philippe Dunouvion

Inventor： Patrice Marquet ,  Jean-Marc Lemaire ,  Philippe Dunouvion

IPC: G01S3/783

CPC classification number: G01S3/783

Abstract: The device permits a wide field of detection with high sensitivity and high locating precision. To this end, the device has a four-quadrant detector associated with a diaphragm formed by the central transparent zone of an opaque mask. The diaphragm preferably has a circular shape and no focusing lens. These elements are in parallel planes so that the line joining the centers of the diaphragm and the detector is perpendicular to these planes. The set is placed in a housing and is shielded by a transparent window. With a deviation measurement circuit that processes the detected signals, the assembly enables the computation of the angular offset of a pinpoint radiant source. With two elementary sensors of this type, it is possible to compute the spatial location of the source, for example a laser.

Abstract translation: 该装置允许具有高灵敏度和高定位精度的广泛的检测领域。 为此，该装置具有与由不透明掩模的中心透明区形成的隔膜相关联的四象限检测器。 隔膜优选具有圆形形状且不具有聚焦透镜。 这些元件处于平行平面，使得连接隔膜和检测器的中心的线垂直于这些平面。 该组放置在外壳中并被透明窗遮蔽。 利用处理检测到的信号的偏差测量电路，该组件能够计算精确点辐射源的角度偏移。 使用这种类型的两个基本传感器，可以计算源的空间位置，例如激光。