THE PROPOSED SCIENTIFIC OBJECTIVE OF THIS PROJECT IS TO PERFORM SUCH ANALYSES FOR SW RB SR SE ZR Y AND MG. RIMS ANALYSES FOR RB SR AND SE WILL AIM AT IMPROVED UNDERSTANDING OF NON-VOLATILE VERSUS VOLATILE ELEMENT FRACTIONATION IN THE EARLY SOLAR NEBULA AND TESTING THE IDEA OF PREFERENTIAL ACCRETION OF GAS OR DUST BY THE SUN. TO THIS END THE ABUNDANCES OF KR WILL BE OBTAINED BY INTERPOLATION FROM ABUNDANCES OF THE NEIGHBORING ELEMENTS (RB SR AND SE) MEASURED BY RIMS AND COMPARED TO ACTUAL ABUNDANCES OF SW KR MEASURED BY OTHERS AND CORRECTED FOR FIRST IONIZATION POTENTIAL FRACTIONATION. IF FOR EXAMPLE THE MEASURED KR ABUNDANCE IS HIGHER THAN THE INTERPOLATED KR ABUNDANCE THIS WOULD INDICATE THAT THE SUN PREFERENTIALLY ACCRETED VOLATILES POSSIBLY DUE TO FORMATION OF OUTER SOLAR SYSTEM PLANETESIMALS. RIMS ANALYSES FOR ZR AND Y WILL AIM AT RE-INITIATING A DISCUSSION OF WHY THE CLEAR R- AND S-PROCESS DOUBLE PEAK STRUCTURE IN THE SOLAR SYSTEM ELEMENT ABUNDANCE CURVE ASSOCIATED WITH THE MAGIC NEUTRON NUMBERS N82 AND N126 IS NOT APPARENT FOR THE N50 REGION. SW MG WILL BE MEASURED SIMULTANEOUSLY WITH THE LISTED ELEMENTS OF INTEREST AS A REFERENCE ENABLING COMPARISON WITH OTHER SW ELEMENTS MEASURED BY RIMS AND OTHER TECHNIQUES. THE PROPOSED TECHNICAL OBJECTIVE OF THIS PROJECT IS TO ENABLE THESE ANALYSES BY COMPLETING CONSTRUCTION TESTING AND OPTIMIZATION OF THE RIMS INSTRUMENTATION AT UIC DEPARTMENT OF CHEMISTRY.