The effect of fill level on powder mixer performance using a positron camera

Investigation of the effect of impeller rotation rate, powder flow rate, and cohesion on powder flow behavior in a continuous blender using PEPT

“…In the next three sections we will further examine the residence time in more detail, using an approach similar to that of Broadbent et al (1995), who used PEPT to study the time a particle enters and departs an axial compartment within the vessel. In this paper, we refer to such a measurement as the local axial residence time.…”

Positron emission imaging in catalysis

“…Workers at the University of Birmingham in the UK have developed a so-called 'position camera' to image flow patterns by conventional tomographic reconstruction and by tracking of a single tracer particle, positron emission particle tracking (PEPT). [25] Physical processes such as powder mixing in a ploughshare batch mixer [26] and particle motion within a fluidized bed [27] have been studied.…”

Production of 11C-labelled n-hexane for use in positron emission imaging

“…138 l-1169/96/$15.00 © 1996 Published by Elsevier Science B.V. All SSDI 138 l-I 1 69(95)0021 [4][5][6] tions, as the energy of the photons is high enough to pass through most materials. In the field of catalysis therefore positron emission tomography would allow one to study labelled reactants inside a working catalyst bed; with conventional techniques of analysis it is only possible to study those reactants entering the catalytic reactor, and the products leaving.…”

“…Positron emission tomography (PET) is a technique which is used in the field of nuclear medicine and for other industrial applications [1][2][3][4]. The principle works by monitoring Tphotons produced as a result of the decay process of a positron emitting isotope [5].…”