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 KNOWLEDGE CONNECTING FUNDAMENTAL PHYSICS TO THE COSMOS

4. LUNA
Gran Sasso

5. Laboratory for Underground
Nuclear Astrophysics
LUNA site
LNGS
(shielding  4000 m w.e.)
LUNA 1
( )
50 kV
LUNA 2
(2000…)
400 kV
Radiation
LNGS/surface
Muons
Neutrons
10-6
10-3

6. “We are made of star dust” Carl Sagan Why 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)

13. Achievements at Stuttgart
Dynamitron mentenance % %
2.1% % % %

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

15. 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

16. Duoplasmatron Peabody Scientific Model PS-100
We have to buy

17. 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

18. STEP IN