Title of article
Development of an improved positron emission particle tracking system
Author/Authors
Stellema، نويسنده , , C.S. and Vlek، نويسنده , , J. and Mudde، نويسنده , , R.F. and de Goeij، نويسنده , , J.J.M. and van den Bleek، نويسنده , , C.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
15
From page
334
To page
348
Abstract
An improved Positron Emission Particle Tracking (PEPT) system has been developed for the non-intrusive investigation of solids flow in a gas-solids Interconnected Fluidised Bed (IFB) reactor. This system tracks continuously the 3D location of a single positron emitting particle. This particle has the same size and density as the solids and can be made as small as 500 μm. The system performance was improved through the use of graded absorbers which enable to filter valuable information from the Compton spectrum. A radiotracer particle moving at 1 m s−1 can be located with a 3D resolution better than 15 mm in a continuous trajectory. For a velocity of 0.1 m s−1 the 3D resolution is better than 5 mm. The obtained results are presented through ensemble-averaged solidsʹ velocity patterns.
Keywords
Fluidised beds , radiotracer , Particle tracking , Solids flow , Positron emitter , Flow fields
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
1998
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2177304
Link To Document