tokens: In cases other than requirement 6.2.1.1b , one of the following analyses of the shielding shall be performed : - a sector - analysis , as specified in clauses 6.2.2 and 6.2.3 , or - a detailed radiation transport simulation of the whole or a part of the spacecraft , as specified in clause 6.2.4 . - shielding analysis as part of a simultaneous complete analysis with all sensitive locations defined , irrespective of whether problems are apparent or not .