pet_ex0	Comparsion of the Ramp and Hamming1 filter in iradon.
pet_ex1	Comparsion of all direct reconstruction methods without and with AWS.
pet_ex2	Comparsion of iradonIT (EM, ART, CG) with iradon (FB) without and with AWS.
pet_ex3	Comparsion of iradonIT (EM, ART, CG) with iradon (FB), without saving of the system matrix (without and with AWS).
pet_ex4	Using of iradon and iradonIT with ini-files
