Physics cases for trackingCalculations made by Lisbon and Sevilla. Similations by D. Rodriguez (Huelva)

19C at the Low Energy Branch (LEB)Settings 1:48Ca energy: 400 MeV/u.Graphite target: = 3 g/cm2Degrader 1: Al with = 20.9 g/cm2.Degrader 2: Al with = 10.5 g/cm2.Without contaminants.Settings 2:48Ca energy: 400 MeV/u.Graphite target: = 3 g/cm2Degrader 1: Al with = 20.9 g/cm2.Same yield of 20N and 19C.Calculations courtesy of David Boutin

The Low Energy Branch (LEB) 19C estimatesSettings 1

Beam parameters and tracking system 19C11Be = 38 MeV/u = 8.4 MeV/uEFWHM = 3 MeV/uTrack1DSSSD (20 m)SeD?Track2DSSSD (20 m)SeD?2 m30 cm208Pb (for 19C)1 mg/cm2Diameter: 10 cm x (19C)= 344 mm mrady (19C)= 376 mm mrad x (11Be)= 344 mm mrad y (11Be)= 376 mm mradC8H8 (for 11Be)1 mg/cm2Diameter: 10 cm

E1 E2 E/ E3 E Detection set-ups:- E1 : DSSSD Si-40m.- E2 : DSSD 200 m. E/ E3 : Single PAD 1.5 mm. E : CsI 6 cm. Pulse shape analysis. Time of flight.Detector setupTarget30401) d = 17 cm Angular resolution: 2. Pixel: 3x3 mm2. 19C @ 160 MeV19C18C2) d = 34.4 cm Angular resolution: 2 Pixel: 6x6 mm23) d = 68.8 cm. Angular resolution: 2 Pixel: 1.2x1.2 cm2dBeam010Be10

19C Elastic scattering + break-up (no tracking)50 100 150 200 250 50 100 150 200 250 18C19C18C19C18CEtotal /MeVEtotal /MeVE /MeVE /MeVE = E1+ E2 Detector resolution 2% (Si)50 100 150 200 250 Etotal /MeV19C18CE /MeV1)2)3)

50 100 150 200 250 19C Elastic scattering + break-up (tracking)19C18CEtotal /MeVE /MeV1)50 100 150 200 250 Etotal /MeV2)3) 50 100 150 200 250 Etotal /MeVE /MeVt = 1 ns 18C19C19C18C3)3)High time resolutionneeded SeD

11Be Elastic scattering + break-up 10Be 50 150 250 350 450 E = E1+ E2 + E3 Detector resolution 2% (Si)Detector resolution 10% (CsI)3) No trackingEtotal /MeVE /MeV11Be10Be3) Tracking

t = 60 ps 11Be10Be 50 150 250 350 450 Etotal /MeVE /MeV 50 150 250 350 450 Etotal /MeV3) Tracking+ pixel

Low energy vs high energy

Tracking requirements for low energy beams (5-20 MeV/u)Angular resolution: 0.5-1Timing: 0.7-0.3 ns

Transverse momentum resolutionpT = m v q