학술논문
Long-Range Alpha Detector (LRAD) technology applied to ER and D&D problems
Document Type
Conference
Author
Source
Conference: Department of Energy environmental remediation conference,Augusta, GA (United States),24-28 Oct 1993; Other Information: PBD: [1993]
Subject
Language
English
Abstract
Standard alpha detectors are severely limited when monitoring alpha contamination on large surfaces and the inside surfaces of pipes, ducts, and equipment. The Long-Range Alpha Detector (LRAD) system overcomes these problems by detecting the ion pairs created by an alpha particle in ambient air, rather than the alpha particle directly. These ion pairs are transported to a collection grid by either an air current or an electric field and create a small electric current (typically 10{sup {minus}13} to 10{sup {minus}14} A) that is read by an electrometer and displayed on a data acquisition system. This method of detection is used to create monitoring systems for both the environmental restoration and decontamination and decommissioning fields.