Patent ID: 6806450
Filing Date: 2004-10-19
Classification: G01N,H01J

Abstract:
A hazardous material detection system comprising:gaseous sample introduction means for introducing a gaseous sample containing a substance stuck to a detection object from an inside of a detection object conveyance path, which serves to manage entrance and exit of the detection object; detection object detection means for outputting a detection signal if the detection object is in a detection region of the detection object conveyance path; ionization means for ionizing the gaseous sample introduced by the gaseous sample introduction means, in response to the detection signal; mass analysis means for analyzing mass of the gaseous sample ionized by the ionization means; and decision means for deciding whether the gaseous sample contains a hazardous material, based on an analysis result from the mass analysis means, wherein the ionization means ionizes the gaseous sample only for a set time in response to the detection signal.