Topics

 

I Modeling of the LII Process

I.a Structure of model approaches. A Review

- which different levels of complexity are applied by the different models?

I.b Energy- and mass balance during particle heating and cooling

- separation of heating and cooling or simulation of the complete process
- considered heat fluxes

- temperature dependence of the heat capacity

- solution of the differential equation-system (heat- and mass balance) 

I.c Different models for heat fluxes

- different Knudsen regions

I.d Simulation of radiation signals

- influence of particle size distribution

- consideration of the radial and temporal distribution of laser fluence 

I.e Material properties

 

II Experimental 

II.a Excitation

- wavelength
- influence of radial and temporal energy distribution
- devices for homogenisation of laser fluence

II.b Signal Detection

- one- or two-dimensional signal detection

- camera or photomultiplier

- detection wavelengths

- potential interference

II.c Influence of laser fluence

- on signals: excitation curve

- on particles: change of aggregate structure and particle morphology

II.d Two-color applications for direct temperature measurement

 

III Signal evaluation

III.a Determination of particle size or size distribution from measured signals

 - Fitting of measured curves or numerical solution of Fredholm integral equation

III.b Influence of the particle shape / degree of agglomeration

III.c Determination of particle volume fraction from the measured signals

- problem of calibration

- correction of temperature difference between calibration and measurement

 

 IV Comparison of different approaches of all involved groups