Cross section measurements at LNL
M.Mezzetto (INFN-Pd) on behalf of
INFN-LNL: M. Cinausero, G. De Angelis,G. Prete
The INFN Legnaro LaboratoryThe INFN Legnaro Laboratory
3 Elettrostatic Accelerators3 Elettrostatic Accelerators- Tandem XTU (16 MV)- Tandem XTU (16 MV)- Van der Graff (7 MV)- Van der Graff (7 MV)- An 2000 (2 MV)- An 2000 (2 MV)
1 Linac1 Linac- Alpi SC- Alpi SC
1 RFQ 1 RFQ injectorinjector- - Piave SCPiave SC
Experimental HallsExperimental Halls- - AboutAbout 10 10 Detection Detection
systemssystems
1 RIB Facility planned1 RIB Facility planned- SPES (ISOL)- SPES (ISOL)
A new approach for -beam
Beam cooling with ionization losses – C. Rubbia, A Ferrari, Y. Kadi and V. Vlachoudis in NIM A 568 (2006) 475–487
“Many other applications in a number of different fieldsmay also take profit of intense beams of radioactive ions.”
7Li(d,p)8Li6Li(3He,n)8B
7Li6Li
See also: Development of FFAG accelerators and their applications for intense secondary particle production, Y. Mori, NIM A562(2006)591
Cross section and Angular distribution measurements
20-30 MeV
Experiments at Laboratori Nazionali di Legnaro
TANDEM-LINAC accelerator complex
Inverse kinematic reaction
7Li beam at 10-30 MeV Target: deuterated plastic
7Li + d 8Li + p
Protons detected with 8LP: E-E hodoscope Si+CsI(Tl)
Detection Energy range: 2° to 24° : 1-64 AMeV 34° to 177°: 1-34 AMeV,
Experiments at Laboratori Nazionali di Legnaro
7LiBall: 30 cm inner diameter
126 E-E telescopes (collimated + 1°)
300 m Si - 5 mm CsI(Tl) angular range 34° to 177°7 rings, 18 telescopes per ring.
126 energy spectra 7 angles(per run)
Experiments at Laboratori Nazionali di Legnaro
7Li
First Experiment performed in July 2008
Inverse kinematic reaction:7Li + Cd2 target E=25 MeV
Data reduction in progress
Problems (technical):• Background reactions on the C Matrix• Proton spectra contaminated• Absolute Normalization needed
Problem (political):• Shortening in humane resources due to Italian
government cut of INFN positions
Possible future improvements:
a) Better REACTION IDENTIFICATION detecting HEAVY FRAGMENTS in coincidence with p
Detector developments - TOF measurements of Li ions Electromagnetic separation (MAGNEX spectrometer, available at LNS)
b) More CLEAN TARGETDuterons adsorbed into heavy matrix (Pt, no reaction on matrix)Gas jet target (not available at LNL)Cryogenic target (not available at LNL)
What next
Analyze data and evaluate contamination problems
EU support for a research fellowship
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