( Bellissima ) Formulazione alternativa ... molto insolita... dell'equazione del trasporto
Vecchi miei appunti attorno al 1983 ( avevo 37 anni ) motivati solo dal mio desiderio di sapere, capire e seguire strade nuove... quando ancora... fino al 1985, mi interessavo della teoria del trasporto applicata alla neutronica e mentre il nucleare italiano era allo sbando senza bisogno del voluto disastro di Chernobyl...
Ron T. Ackroyd - Ann. Nucl. Energy V.10, pag. 65 (1983)
http://www.sciencedirect.com/science/article/pii/0306454983900117In epoca successiva, quando ormai non mi interessavo più di neutronica, è uscito questo volume che reputo molto interessante:
Finite Element Methods for Particle Transport: Applications to Reactor and Radiation Physics 9780863801815 ( pubblicato nel 1997 ) (Ron Tunstall Ackroyd; 1921-2006 )
This book describes and applies methods for the solution of problems on the energy and time dependent behaviour of either neutrons or photons in systems with arbitrarily complex shapes and compositions. Solutions and precise gauges are provided for both global and local accuracy of solutions and it is shown that this new and deterministic method is a valuable complementary tool to the stochastic Monte Carlo Method. Assuming no previous knowledge of finite element methods or transport theory, the reader is taken to the frontiers of research where many diverse applications of the methods are opening up in non-nuclear fields. The theory is illustrated in depth for both test problems and problems that arise in practical situations in the fields of nuclear power and mineral prospecting. The methods described are also applicable to infra-red medical tomography, and to environmental problems such as the response of clouds and vegetation to the sun's rays.
