00000nam 2200000zi 4500 9.905926 CaOODSP 20221107180956 m o d f cr |n||||||||| 211215e199009##oncad ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- NH17-289/1990E-PDF Vandrish, George, author. Low cost radon detector based on spark discharge technology : report of research / prepared for CMHC by George Vandrish and Lyle Davidson, Instruscience Ltd. [Ottawa, Ont.] : [Canada Mortgage and Housing Corporation], August 1990. 1 online resource (33 pages) : illustrations, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Canada Mortgage and Housing Corporation]. Includes bibliographical references (pages 29-30). "A portable radon detector has been successfully developed based on spark discharge technology . This detector was found to have a sensitivity to radon of 0.045 cpm/pCi. Research focused on the development of a low cost, high voltage supply, counting systems, various sensors, and a radon daughter electrostatic collector. Sensors based on conventional technology were constructed, optimised for sensitivity, simplicity of fabrication and stability. Sensors based on thin foil technology failed to function as expected and research was discontinued. Testing was ongoing throughout the project"--Executive summary. Radon Measurement. Radon control industry Canada Equipment and supplies. Radon Mesure. Canada Mortgage and Housing Corporation, issuing body. PDF 1.17 MB https://publications.gc.ca/collections/collection_2021/schl-cmhc/NH17-289-1990-eng.pdf