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Stuttgart Dynamitron at Bucharest - Perspectives and New Activities

Stuttgart Dynamitron at Bucharest - Perspectives and New Activities. Dr. Cristina Bordeanu. Nuclear Astrophysics measurements requirements. Low energies Energy stability Very low cross sections Long time measurements High beam intensity Low gamma background Special detectors

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Stuttgart Dynamitron at Bucharest - Perspectives and New Activities

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  1. Stuttgart Dynamitron at Bucharest - Perspectives and New Activities Dr. Cristina Bordeanu

  2. Nuclear Astrophysics measurements requirements • Low energies • Energy stability • Very low cross sections • Long time measurements • High beam intensity • Low gamma background • Special detectors • High precision measurement plans

  3. MINING FOR KNOWLEDGECONNECTING FUNDAMENTAL PHYSICS TO THE COSMOS

  4. LUNA Gran Sasso

  5. Laboratory forUnderground Nuclear Astrophysics LUNA 1 (1992-2001) 50 kV LUNA 2 (2000…) 400 kV LUNA site LNGS (shielding  4000 m w.e.)

  6. “We are made of star dust” Carl SaganWhy underground?

  7. Underground Astrophysics in Romania

  8. Contact people • Prof. Claus Rolfs –Ruhr University • Prof. Wiescher -Notre Damme University • Prof. Hammer - Notre Damme University • Prof. Michler –Stuttgart • Prof. Pitz - Stuttgart • Prof. Hollick - Stuttgart

  9. 4.3MV max voltage 1mA heavy ions 4mA electrons length 7 m diameter 2.6 m The side port containing the coils diameter of ca. 2m thickness 1.5 m Accelerating tube ca. 5.4 m long + ca. 1 m the high voltage terminal ca. 6 bar SF6 ca. 1.7 tons of SF6

  10. The power unit 2 m*2 m*2 m 200 kW Sources & extraction system PEABODY SCIENTIFIC.

  11. Gas handling System (part)

  12. Achievements at Stuttgart • Dynamitron mentenance • 1997 0.5% • 1998 0.5% • 2.1% • 2000 14.6% • 2001 13.9% • 2002 2.3% • 2003 -----

  13. Stuttgart experimental area • 00 - -radiation control system • 210 - heavy ion -beam scanner • 600 - (,) -security system • 900 - windowless gas target -Photoactivation • 1200- bremsstralung -Nuclear Astrophysics • Irradiation -Nucl.Resonance Fluores. • -Irradiations

  14. What we may get • Motif to stop the accelerator • No ion source • Radioactivity level • SF6 system and gas • Spare parts • change several sealings, delrin rods • Regenerate the accelerating tube • Bought parts must be rectified at the mechanical shop

  15. Duoplasmatron Peabody ScientificModel PS-100 We have to buy

  16. PROJECT • Where to place it • Money for the whole operation • Mechanical workshop • Spare-parts • Manpower • Power • Patience • High interest in experimental nuclear physics subjects and material applications

  17. STEP IN

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