1. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 1 09/17/2008 Fluorescence diagnostic at NDCX results and prospects F. Becker 1, P. Hauville 3, P.A. Ni 2, F.M. Bieniosek 2 1) Gesellschaft für Schwerionenforschung GSI, Darmstadt 2) Lawrence Berkeley National Laboratory LBNL, Berkeley 3) École Nationale Supérieure de Physique ENSPG, Grenoble

2. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 2 Outline 1/3 BIF-monitor requirements at NDCX target chamber: –Results 2007 – Al plasma spectrum –BIF-monitor in a bright environment Latest experimental results for (Xe, Kr, Ar, Ne, N 2 ): –Beam induced spectra recorded in DB 1 –Plasma induced spectra recorded in TC –Beam induced spectra recorded in TC Experimental prospects: –How to increase the PIF/BIF-ratio? –Puff-valve and gas jet for increased signal

3. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 3 BIF transverse beam profile monitor ION beam Blackened walls Vacuum gauge Valve Viewport 150mm flange Lens Image-Intensifier CCD FireWire-Camera Any fluorescent gas equally distributed

4. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 4 BIF transverse beam profile monitor

5. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 5 BIF transverse beam profile monitor - monitor successfully applied at DB 1 (Okt. 2007)

6. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 6 Results 2007 – Al plasma spectrum 470A, basepressure 470A, p=10 -5 Torr N 2 660A, basepressure Al N2N2

7. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 7 BIF-monitor in a bright environment - are there lines just excited by the beam? - can it be discriminated against neighbor-lines?

8. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 8 Outline 2/3 BIF-monitor requirements at NDCX target chamber: –Results 2007 – Al plasma spectrum –BIF-monitor in a bright environment Latest experimental results for (Xe, Kr, Ar, Ne, N 2 ): –Beam induced spectra recorded in DB 1 –Plasma induced spectra recorded in TC –Beam induced spectra recorded in TC Experimental prospects: –How to increase the PIF/BIF-ratio? –Puff-valve and gas jet for increased signal

9. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 9 Beam induced spectra recorded in DB 1

10. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 10 Beam induced spectra recorded in DB 1 ?

11. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 11 Beam induced spectra recorded in DB 1 ? Xe II @ 537 nm Kr II @ 484 nm

12. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 12 Plasma induced spectra recorded in TC

13. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 13 Beam induced spectra recorded in TC

14. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 14 Beam induced spectra recorded in TC

15. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 15 How reliable is the calibration?

16. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 16 How reliable is the calibration?

17. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 17 The PIF/BIF ratio no lines just excited by the beam PIF/BIF ratio for Xe is between 800 and 4000 [P. Hauville]

18. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 18 Outline 3/3 BIF-monitor requirements at NDCX target chamber: –Results 2007 – Al plasma spectrum –BIF-monitor in a bright environment Latest experimental results for (Xe, Kr, Ar, Ne, N 2 ): –Beam induced spectra recorded in DB 1 –Plasma induced spectra recorded in TC –Beam induced spectra recorded in TC Experimental prospects: –How to increase the PIF/BIF-ratio? –Puff-valve and gas jet for increased signal

19. 6/26/2016 The Heavy Ion Fusion Science Virtual National Laboratory 19 Thank You