1. Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1

2. Longitudinal wake potential (30m) for CATIA model. Tapers with slots 2

3. 3

4. Different sets of the meshes. Δ xΔ z Mesh 1 1mm 2mm Mesh 20.5mm 2mm Mesh 30.2mm0.5mm2mm Mesh 40.5mm0.2mm2mm Mesh 50.5mm 1mm Mesh 60.2mm0.5mm1mm Mesh 70.5mm0.35mm1mm Mesh 80.5mm0.2mm1mm Mesh 90.2mm0.5mm Mesh 100.4mm 0.5mm impossibly 4 The calculations were performed for different beam positions: 1. x=0, y=0; 2. x=1.5mm, y=0; 3. x=0, y=1.5mm

5. Longitudinal wake potential (10m), was calculated for different mesh properties and presented in region from -0.5m to 0.5m. Beam position – on axis. Bunch length is 7.5cm. 5

6. Longitudinal wake potential (10m), was calculated for different mesh properties and presented in region from -0.5m to 10m. Beam position – on axis. Bunch length is 7.5cm. 6

7. Longitudinal wake potential (10m), was calculated for different mesh properties and presented in region from -0.5m to 0.5m. Beam position – on axis. Bunch length is 7.5cm. 7

8. Longitudinal wake potential (10m), was calculated for different mesh properties and presented in region from -0.5m to 10m. Beam position – on axis. Bunch length is 7.5cm. 8

9. Real part of the longitudinal impedance. 9

10. Imaginary part of the longitudinal impedance. 10

11. X – component of the transverse wake potential for different mesh properties. Beam position – on axis. Bunch length is 7.5cm. 11

12. X – component of the transverse wake potential for different mesh properties. Beam position – on axis. Bunch length is 7.5cm. 12

13. Y – component of the transverse wake potential for different mesh properties. Beam position – on axis. Bunch length is 7.5cm. 13

14. Y – component of the transverse wake potential for different mesh properties. Beam position – on axis. Bunch length is 7.5cm. 14

15. Longitudinal wake potential for different mesh properties. Beam position – x = 1.5mm, y=0. Bunch length is 7.5cm. 15

16. Longitudinal wake potential for different mesh properties. Beam position – x=0, y=1,5mm. Bunch length is 7.5cm. 16

17. X – component of the transverse wake potential for different mesh properties. Beam position – x = 1,5, y = 0. Bunch length is 7.5cm. 17

18. X – component of the transverse wake potential for different mesh properties. Beam position – x = 0, y = 1,5. Bunch length is 7.5cm. 18

19. X – component of the transverse wake potential for different mesh properties. Beam position – x = 0, y = 1,5. Bunch length is 7.5cm. 19

20. Y – component of the transverse wake potential for different mesh properties. Beam position – x = 1,5, y = 0. Bunch length is 7.5cm. 20

21. Y – component of the transverse wake potential for different mesh properties. Beam position – x = 0, y = 1,5. Bunch length is 7.5cm. 21

22. Y – component of the transverse wake potential for different mesh properties. Beam position – x = 0, y = 1,5. Bunch length is 7.5cm. 22