Abstract:
La presente especificación divulga un sistema para detectar material nuclear con base en al menos una fuente de radiación de sondeo y las firmas de radiación generadas de interrogar un objeto bajo inspección. Además, la presente especificación describe un detector de activación de umbral capaz de detectar neutrones instantáneos, por medio de la activación, después de que la radiación cegadora de la fuente se ha detenido. El detector de activación de umbral se puede fabricar de fluorocarbonos líquidos que permiten la detección de radiación beta y rayos gamma.
Abstract:
The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.
Abstract:
The present specification discloses a system for detecting nuclear material based on at least one source of probing radiation and the radiation signatures generated from interrogating an object under inspection. In addition, the present specification describes a threshold-activation detector capable of detecting prompt neutrons, via the activation, after the source's blinding radiation has stopped. The threshold-activation detector can be manufactured from liquid fluorocarbons that allow for the detection of beta radiation and gamma rays.
Abstract:
The present specification discloses a system for detecting nuclear material based on at least one source of probing radiation and the radiation signatures generated from interrogating an object under inspection. In addition, the present specification describes a threshold-activation detector capable of detecting prompt neutrons, via the activation, after the source's blinding radiation has stopped. The threshold-activation detector can be manufactured from liquid fluorocarbons that allow for the detection of beta radiation and gamma rays.
Abstract:
La presente invención describe métodos para la inspección de un objeto. El método incluye analizar un objeto en un proceso de dos etapas. En el escaneo primario, un camión o un contenedor de carga (contenedor) es completamente escaneado con una radiación de haz en abanico, la radiación transmitida se mide con un arreglo de detectores, y la información de transmisión y, opcionalmente, las firmas de fisión se analizan para determinar la presencia de materiales de alta-densidad, de alta Z y fisionables. Si el contenedor activa la alarma en una o más áreas, las áreas son sometidas a un escaneo secundario. Esto se hace mediante el reposicionamiento preciso del contenedor a la ubicación de las áreas sospechosas, el ajuste del sistema de escaneo para centrarse en las áreas sospechosas, la realización de una irradiación estacionaria de las áreas, y el análisis de las firmas características medidas para aclarar o confirmar la presencia de SNM.
Abstract:
The present specification discloses a system for detecting nuclear material based on at least one source of probing radiation and the radiation signatures generated from interrogating an object under inspection. In addition, the present specification describes a threshold-activation detector capable of detecting prompt neutrons, via the activation, after the source's blinding radiation has stopped. The threshold-activation detector can be manufactured from liquid fluorocarbons that allow for the detection of beta radiation and gamma rays.