Dosimeter for radon and radon daughter products
US4778992A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Feb 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An improved radon detector has an enclosed housing with a removeable cap to provide a chamber within which a detector member is mounted for detecting the impact of alpha particle emissions from radon gas entering the chamber through apertures formed in the cap. The detector member has at least one planar surface for detecting the emissions and is supported within the chamber to orient the planar detection surface in a generally vertical plane parallel to the central axis of the upstanding enclosed wall which positions the detection surface in parallel opposition to preferably the major portion of the enclosing wall on which radioactive decay products from radon are deposited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.