Title: Method of detecting radon and its daughter alpha energy spectrum using atmospheric air pulse ionization chamber
Application Number: 200510022380 Application Date: 2005.12.23
Publication Number: 1794011 Publication Date: 2006.06.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01T1/185,G01T1/167,G01T1/36
Applicant(s) Name: Applied Nuclear Technology and Automatic Engineeri Address: 610059
Inventor(s) Name: Fang Fang, Geng Bo, Zhou Wei, Ma Yingjie, Wang Min
Attorney & Agent: hu songtao
Abstract:
     A method of using constant pressure air pulse ionization chamber to detect Rn and its alpha energy spectrum includes applying a closed cavity as ionization chamber with constant pressure air pulse, leading Rn gas to be detected into cavity by connected through gas nozzle, fixing collection electrode of excellent conductor in cavity as its output and collection signal being coupled to input end of charge sensitive amplifier, connecting voltage pulse signal in direct ratio of amplitude to incoming alpha energy at output end of said amplifier to multichannel analyzer for obtaining Rn alpha energy spectrum.
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