IMPROVEMENTS IN OR RELATING TO THE DETECTION OF FISSION PRODUCTS

Patent · Wed Sep 25 04:00:00 EDT 1963

OSTI ID:4158476

Wilson, M V

A method and apparatus are described for detecting fission products carried in a gaseous phase and measuring their quantity by electrostatically precipitating the daughter products of the gaseous fission product materials onto an inactive liquid surface in the presence of a gas phase and then transferring the liquid medium to an activity counting device shielded from the active gas phase. The liquid surfuce may be in the form of charged drops, charged jets, or a surface film covering a suitably shaped electrode. In one preferred form of the apparatus the electrode is a dished porous plate with a central bore through which the liquid is led into a shielded counting chamber. The liquid is delayed in this chamber for a suitable period, and secondary decay of the precipitated activity is measured. Proportional counters, scintillation counters, or an assembly of Geiger tubes may be used for activity measurement. (A.G.W.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-005248
• OSTI ID: 4158476
• Report Number(s): GB 937663
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CHEMISTRY
DECAY
DETECTION
ELECTRODES
ELECTROSTATICS
FISSION PRODUCTS
GASES
GEIGER-MUELLER COUNTERS
LABORATORY EQUIPMENT
LIQUIDS
POROSITY
PRECIPITATION
PROPORTIONAL COUNTERS
QUANTITATIVE ANALYSIS
SCINTILLATION COUNTERS
SHIELDING
SURFACES