Beam profile with multiplicity 25e- and 75e-

Charge correlation upstream and downstream diamond: backplane and twostrip

Results: CSA linear vs e- multiplicity but RF is not !!!

Eta distribution

Eta correlation upstream and downstream diamond: 25e-, 75e-

Eta correlation upstream and downstream diamond: x=49.51mm, x=50.01mm,x=50.51mm,x=51.01mm,x=51.51mm

Eta function: dx = 50mm x Eta

Eta residual

Results: estimated spatial resolution 15 mm !!!! (Very bad spatial resolution)

Further studies on spatial bunch structures

Bunch profile events 0, 1000, 1500, 2184, 500 for 450 MeV and 25e-

Bunch center spread and beam profile

Setup BTF

Diamond data run

/afs/le.infn.it/project/diapix/BTFOct2014/

Diamond strip oriented vertically to the beam

Diamond backplane readout by RF AMPLI and diamond 2nd and 3rd readout by CSA AMPLI

Trigger by Fast Channel Digitizer from upstream blackplane diamon signal

Rate without write on disk 50 Hz, writing on disk 15-20 Hz.

#Linearity studies (Q vs particles)

run evts e-/bunch xdiam ydiam dxbeam dybeam

1 7.454k 25 50.1 mm, 65.3 mm 3 mm 4 mm

2 1.634k

3 1.629k

4 9.008k 75 4 mm 3 mm

#charge waiting studing (x1+x2, x1-x2, x beam)

run evts e-/bunch xdiam ydiam dxbeam dybeam

5 8.780k 25 50.51 mm 65.3 mm 3 mm 4 mm

6 8.148k 25 51.01 mm 65.3 mm 3 mm 4 mm

7 4.554k 25 50.01 mm 65.3 mm 3 mm 4 mm

8 4.982k 25 49.51 mm 65.3 mm 3 mm 4 mm

9 4.939k 25 51.51 mm 65.3 mm 3 mm 4 mm

---

#Move diamond in y to verify vertical alignemnt

ydiamond rate

75.3 mm 8 Hz

70.0 mm 40 Hz

65.3 mm 50 Hz

60.3 mm 50 Hz

55.3 mm 40 Hz