TOP IMPLART AT 152 MeV: SPOT SCANNING AFTER BEAM-1 LINE C. RONSIVALLE Tentative parameters: L1=0.2 m L2=0.4 m d=0.2 m L=1.5 m Bmax=0.3 T M1 M2 8 Aprile.

TOP IMPLART AT 152 MeV: SPOT SCANNING AFTER BEAM-1 LINE

C. RONSIVALLE

Tentative parameters:

L1=0.2 mL2=0.4 md=0.2 mL=1.5 m

Bmax=0.3 T

<- L1-><-d-><-L2-><----------L---------->

M1 M2

8 Aprile 2010

BEAM-1 LINE (Current design)

1.6 m

Lquad=180 mm

0.6 m

Beam at the entrance of scanning magnet 1

Beam at the output of scanning magnet 2

Horizontal size (FWHM)=8.7 mmVertical size (FWHM)=9.08 mm

Max. x-displacementdue to hor. kick given by M1

M1 and M2 are approximated as two steerers placed in the middle of the magnets. Each particle gets a kick depending on its energy

IRRADIATED FIELD: 100x100 mmOne row, nsteps=10Step length=1 FWHM

Bx vs t for one row scanning time=100 msec

Hor. centroids displacement

F=100 Hz

IRRADIATED FIELD: 100x100 mmOne row, nsteps=10,Step length=1 FWHM

F=100 Hz

IRRADIATED FIELD: 100x100 mmOne row, nsteps=20Step length=FWHM/2

F=200 Hz

EXAMPLES OF SCANNING MAGNETS

1. CNAO

1. CNAO

2. INDIANA UNIVERSITY CYCLOTRON FACILITY-BLOOMINGTON

2. INDIANA UNIVERSITY CYCLOTRON FACILITY-BLOOMINGTON

3. GSI