calculations of wakefields for the lhcb velo. olga zagorodnova desy hamburg april 8, 2015 1
TRANSCRIPT
![Page 1: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/1.jpg)
1
Calculations of wakefields for the LHCb VeLo.
Olga Zagorodnova Desy Hamburg April 8, 2015
![Page 2: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/2.jpg)
2
Longitudinal wake potential (30m) for CATIA model.
Tapers with slots
![Page 3: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/3.jpg)
3
![Page 4: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/4.jpg)
4
Different sets of the meshes.
Δ x y Δ z
Mesh 1 1mm 1mm 2mm
Mesh 2 0.5mm 0.5mm 2mm
Mesh 3 0.2mm 0.5mm 2mm
Mesh 4 0.5mm 0.2mm 2mm
Mesh 5 0.5mm 0.5mm 1mm
Mesh 6 0.2mm 0.5mm 1mm
Mesh 7 0.5mm 0.35mm 1mm
Mesh 8 0.5mm 0.2mm 1mm
Mesh 9 0.2mm 0.5mm 0.5mm
Mesh 10 0.4mm 0.4mm 0.5mmimpossibly
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
![Page 5: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/5.jpg)
5
=0.00012 V/pC
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.
![Page 6: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/6.jpg)
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.
![Page 7: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/7.jpg)
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.
![Page 8: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/8.jpg)
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.
![Page 9: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/9.jpg)
9
Real part of the longitudinal impedance.
![Page 10: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/10.jpg)
10
Imaginary part of the longitudinal impedance.
![Page 11: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/11.jpg)
11
X – component of the transverse wake potential for different mesh properties.Beam position – on axis. Bunch length is 7.5cm.
![Page 12: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/12.jpg)
12
X – component of the transverse wake potential for different mesh properties.Beam position – on axis. Bunch length is 7.5cm.
![Page 13: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/13.jpg)
13
Y – component of the transverse wake potential for different mesh properties.Beam position – on axis. Bunch length is 7.5cm.
![Page 14: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/14.jpg)
14
Y – component of the transverse wake potential for different mesh properties.Beam position – on axis. Bunch length is 7.5cm.
![Page 15: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/15.jpg)
15
Longitudinal wake potential for different mesh properties.Beam position – x = 1.5mm, y=0. Bunch length is 7.5cm.
![Page 16: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/16.jpg)
16
Longitudinal wake potential for different mesh properties.Beam position – x=0, y=1,5mm. Bunch length is 7.5cm.
![Page 17: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/17.jpg)
17
X – component of the transverse wake potential for different mesh properties.Beam position – x = 1,5, y = 0. Bunch length is 7.5cm.
![Page 18: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/18.jpg)
18
X – component of the transverse wake potential for different mesh properties.Beam position – x = 0, y = 1,5. Bunch length is 7.5cm.
![Page 19: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/19.jpg)
19
X – component of the transverse wake potential for different mesh properties.Beam position – x = 0, y = 1,5. Bunch length is 7.5cm.
![Page 20: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/20.jpg)
20
Y – component of the transverse wake potential for different mesh properties.Beam position – x = 1,5, y = 0. Bunch length is 7.5cm.
![Page 21: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/21.jpg)
21
Y – component of the transverse wake potential for different mesh properties.Beam position – x = 0, y = 1,5. Bunch length is 7.5cm.
![Page 22: Calculations of wakefields for the LHCb VeLo. Olga Zagorodnova Desy Hamburg April 8, 2015 1](https://reader030.vdocuments.mx/reader030/viewer/2022032703/56649f4e5503460f94c6ff7a/html5/thumbnails/22.jpg)
22
Y – component of the transverse wake potential for different mesh properties.Beam position – x = 0, y = 1,5. Bunch length is 7.5cm.