ERNA2: L. Gialanella SUN e INFN Sezione di Napoli

Presentazione sul tema: "ERNA2: L. Gialanella SUN e INFN Sezione di Napoli"— Transcript della presentazione:

1 ERNA2: 2014-2016 L. Gialanella SUN e INFN Sezione di Napoli
3MV Pelletron High intensity stable ion beams (H->U) Radioactive ion beams: 7Be, 10Be (coll. LNS), possible 26Al AMS ERNA at CIRCE, Caserta detector Recoil Mass Separator Radio- chemistry 1 2 ion sources gas target CSSM accelerator ion beam analysis and purification

2 Financed by INFN and DFG for about 2.5 Meuro
DTL Bochum 2009 moved to CIRCE Caserta

3 7Be+p: hydrogen burning and solar neutrinos
Activity 2013 Target ok 7Be beam ok (Interest from LNS Stream) 5 GBq used for commissioning 15 GBq for mesurements Theoretical study of competing processes (EC) Activity in 2014 Measurements at Ecm= MeV (40 GBq necessary) Collaboration ATOMKI, PSI. Fig. 2 Recent results for 7Be+p in form of astrophysical S factor. [Adelberger et al. Review of Modern Physics, 83(2011)195].

4 Total cross section S(300)=161±19stat+8-2 sys
12C+4He: helium burning Total cross section S(300)=161±19stat+8-2 sys S(300)=161±19stat+8-2 sys Schürmann, Gialanella, Kunz, Strieder, Phys. Lett. B 2012

5 12C(,)16O – ERLUNA WG E1 Extrapolation
(total) poor statistic of low-energy data E1 Extrapolation Reliability of 16N -delayed -decay E2: inconsistencies between direct and indirect measurements Influence of two subthreshold states E1 destructive interference Stot(0.3)  50 % lower

6 Jet target design and construction Further test on pair spectrometers
ISSUE ERNA2 LUNA-MV E2 gs 6.92 MeV cascade primary angular distribution E2 g.s. transition E1 gs Total cross section E1 g.s. transition E0 cascade 6.03 MeV cascade secondary transition (pair production) - Influence of the 16N data E1 g.s. transition Ecm<800 keV Activity 2013: Jet target design and construction Further test on pair spectrometers Activity 2014 Jet target commissioning Gamma detector design Activity Acceptance/suppression measurements Feasibility assessment

7 Ecm = 1 MeV; Ecm = 2 MeV; Ecm = 3 MeV ESSD (channels) EIC (channels)
12C+12C: carbon burning P and alpha channels 30 45 60 70 90 100 PCF4 (mbar) Ea = 5806 keV ESSD = 3924 keV EIC = 832 keV ESSD = 440 keV EIC = 3220 keV E/PCG = 0.31 kV/cm/atm E/PGA = 6x E/PCG Ecm = 1 MeV; Ecm = 2 MeV; Ecm = 3 MeV ESSD (channels) EIC (channels) PCF4 = 300 mbar Design modification to allow forward angles (thin target, ERDA analysis of D content) -> increase chamber diameter ( )

8 Activity 2013 - Chaber installation and test - Measurements start with a reduced setup (Ecm>3 MeV) - Target characterization (thermic effects and background) Activity 2014 Full setup Measurements E<3 MeV Activity 2015/2016 measurements down to 2MeV and below Collaboration Uni Edinburgh Approved project Royal Society (travel money and consumables)

9 238U magnetic rigidity spectrum at 2.7 MV
238U 14MeV charge state probability Post-stripper

10 Activity 2014 - SHE chemistry (collaboration PSI) TOF setup Test measurements Activity Measuremenst of different samples (origin and chemical form) Post-stripper+mcp

11 14,15N+alpha: 19F production in AGB stars – FIRB project
Activity 2013: target characterization High energy resonance measurements - Sensitivity study of stellar models Activity 2014: Low energy resonance measurements Data analysis and astrophysical impact

12 Consuntivi 2012: 8 pubblicazioni ISI
MILESTONES 2013 Studio della distribuzione di stati di carica di isotopi di U e trasporto attraverso ERNA (ERNA-AMS) % Caratterizzazione del nuovo bersaglio a doppi jet (He+Ar) e disegno esecutivo delle camere per l'array gamma e lo spettrometro di coppie. – spostata al Completamento delle misure della 7Be+p a Ecm= MeV. – spostata al Completamento della camera di reazione 12C+12C con 4 telescopi. % Studio dell'impatto delle misure della 7Be+p sulle previsioni della componente di alta energia del neutrino solare possibile Determinazione dell'impatto astrofisico della nuova determinazione della 7Be+p Misura della sezione d'urto della 12C+12C a Ecm=3-4 MeV Misura di test delle nuove camere per il jet. Test dello spettrometro p+19F(alpha,16O) con la cameretta nuova e i 2 telescopi. – spostata al 2014 Completamento e pubblicazione delle stime teoriche della 7Be+e in ambiente astrofisico possibile Consuntivi 2012: 8 pubblicazioni ISI

13 MILESTONES 2014 Completamento setup tempo di volo SHE e test campioni SHE preparati al PSI con linea a bassa risoluzione Misure e analisi Ecm=0.4-1 MeV .Determinazione rate della 7Be+p. Parzialmente dal 2013. Misura di test delle nuove camere per il jet. Test dello spettrometro p+19F(alpha,16O) con la cameretta nuova e i 2 telescopi. Spostata dal 2013 Misure 12C+12C per Ecm=2-3 MeV Analisi risonanze per 14,15N+4He

14

15 Piano finanziario globale di spesa
Anagrafica: 17.2 FTE (29 ricercatori)-> 60% di cui 4 dottorandi e 3 assegnisti 2 laureandi Piano finanziario globale di spesa Anno missioni consumo altri_cons trasporti manutenzione inventario licenze-SW apparati spservizi Totale 2014 46.00 23.00 8.00 10.00 37.50 35.00 42.00 201.50 2015 18.00 5.00 15.00 141.00 2016 3.00 134.00 Totali 138.00 59.00 16.00 20.00 62.50 55.00 126.00 476.50 Mod. EC/EN 6

16 Inaugural Workshop for ERNA at CIRCE
Direct measurements in Nuclear Astrophysics with Recoil Mass Separators Inaugural Workshop for ERNA at CIRCE October, 4th-5th 2013 Department of Mathematics and Physics of the Second University of Naples, Caserta, Italy Scientific and Organizing Committee A. Di Leva Università Federico II and INFN, Napoli L. Gialanella SUN and INFN Napoli - Chair G. Imbriani Università Federico II and INFN, Napoli P. Lubrano INFN, Perugia M. Romoli INFN, Napoli D. Schürmann SUN and INFN, Napoli Organized by the Mathematics and Physics Dept. of the Second University of Naples Supported by INFN Sez. di Napoli e Perugia and Dept. of Physics of Federico II University Sponsored by GIANTS (Gruppo Italiano Astrofisica Nucleare Teorica e Sperimentale) Web Site: Contact: S. Bishop         TUM, Germany M. Busso         Univ. Perugia and INFN, Italy M. Couder         University of Notre Dame, USA S. Cristallo         INAF - OAT, Italy A. Di Leva         Univ. Federico II and INFN, Italy I. Dominguez    Universidad de Granada, Spain B. Fulton          University of York, UK A. Guglielmetti   Univ. Milano and INFN, Italy S. Romano         Univ. Catania and INFN, Italy K. Sagara         Kyushu University, Japan                 D. Schürmann   SUN and INFN, Italy F. Terrasi         SUN and INFN, Italy M. Wiescher         University of Notre Dame, USA Invited speakers