1. AFCI Reactor-Accelerator Coupling Experiments (RACE) Project Prof. Denis Beller Project Director Idaho State University (e-mail: beller@egr.unlv.edu) Eighth Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation Nov. 11, 2004

2. RACE Project l Design, model, and conduct ADSS experiments l Predict and analyze subcritical multiplication and source-driven transients l Map source importance & flux in and around a variety of ADSS l Provide a bridge between MUSE and TRADE

3. Idaho State University leads a growing RACE consortium l IAC RACE ADSS l UT-Austin & Texas A&M TRIGAs l UNLV TRP l U of Michigan l ANL-West l LANL

4. Driving neutron sources: l MUSE DT-neutron source »~1.5x10 10 n/s, 2.45 & 14.1 MeV l TRADE p + source will make about »10 15 n/s, up to 140 MeV l Quite a jump! l RACE linear electron accelerator: »Up to ~10 13 n/s »Intermediate energy: spallation-like spectrum plus small tail up to 30+ MeV

5. ADSS Experiments Comparison SystemSource Strength (n/s) PowerCost MUSE DD & DT ~10 10 Zero $60 M RACE Electron beam 5x10 12 1-10 kW th $2-3 M TRADE Proton cyclotron ~10 15 200 kW th $90 M?

6. RACE ADSS Characteristics

7. Tentative Experiment Schedule l ISU-IAC »Design & licensing Aug ’03-Mar ’04 »ConstructionFeb-Apr ’04 »ExperimentsApr ’04-Jun ’05 l UT-Austin ExperimentsSpring ’05-? »TRIGA, other l Texas A&M ExperimentsFall ’05-’07+ »TRIGA, used fuel core, LBEFall ‘07

8. RACE Progress l Design studies completed at Texas A&M and UT »Fresh fuel and fresh reactor at UT »Texas A&M may build permanent ADSS l Static and transient analyses completed at U of Mich l New UNLV TRP project approved l Seven ADSS experiments at ISU-IAC

9. 75% W, 25%Cu target for ISU RACE, 2 ¾” diameter x 3” long

10. Target with thermocouples

11. Comparison of MCNPX flux and Mn Activation Measurements

12. In June we installed a new system l Replaced accelerator l Large Al vessel l Graphite reflector l Water moderator

13. Accelerator and “large” vessel

14. RACE fuel trays and target inside the graphite reflector

15. Preliminary results: Gold activation versus MCNPX

16. Time-dependent measurement

17. Conclusion l ADSS Exp at ISU, UT, and Tx A&M l Now thru 2006 or beyond l Design, modeling, and execution l Predict and measure subcritical multiplication, source-driven transients, and map source importance l Recruit, educate and train students l Transmutation