In the framework of ESA Contract 4000127129/19/NL/HK (supported by the
Technology Research Programme) a new, comprehensive system of
tools—Human Interplanetary Exploration Radiation Risk Assessment
System (HIERRAS)— was developed to permit accurate and easier
calculation of radiobiological and equipment radiation effects for
future human interplanetary missions within helio-radii 0.9 to 1.6 AU.