Transport Phenomena and Kinetic Theory pp 257-271 | Cite as

# Two inverse problems in photon transport theory: evaluation of a time-dependent source and of a time-dependent cross section

## Abstract

*inverse*problems are considered:

- (a)
identification of some physical or geometrical quantity (such as a cross section, or a photon source, or the shape of the surface that bounds the host medium), evaluating its dependence on spatial and/or angle variables, under the assumption that photon transport is time independent and starting, for instance, from the knowledge of the exiting photon flux;

- (b)
identification of some physical or geometrical quantity that characterizes the host medium, evaluating its dependence on spatial and/or angle variables

*and*on time, under the assumption that photon transport is time dependent and starting, for instance, from the knowledge of the time behaviour of the exiting photon flux.

## Keywords

Inverse Problem Abstract Equation Photon Density Interstellar Cloud Host Medium## Preview

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