multi beamlett extraction experiments and sector magnet field investigation
DESCRIPTION
Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation. Platform DC Power Supply. Platform Ground. 35kV. Pulsed Extract Power Supply. 17kV. -. +. Laboratory Ground. 18kV. Extraction Electrode, Coldbox and Analysing Magnet all Pulsed. -. +. 35keV H - Beam. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/1.jpg)
Multi Beamlett Extraction Experiments and Sector
Magnet Field Investigation
![Page 2: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/2.jpg)
Platform Ground
Pulsed Extract Power
Supply
Extraction Electrode,
Coldbox and Analysing Magnet all
Pulsed
+
17kV-
Platform DC Power Supply
35kV
Post Extraction
Acceleration Gap
Laboratory Ground
+-
18kV
35keV H- Beam
![Page 3: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/3.jpg)
Profile Measurements for Different Extraction Voltages
![Page 4: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/4.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
17 kV Extraction Voltage
35 kV Platform Voltage
18 kV Post Acceleration Voltage
47 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 5: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/5.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
16 kV Extraction Voltage
35 kV Platform Voltage
19 kV Post Acceleration Voltage
42 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 6: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/6.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
15 kV Extraction Voltage
35 kV Platform Voltage
20 kV Post Acceleration Voltage
40 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 7: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/7.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
14 kV Extraction Voltage
35 kV Platform Voltage
21 kV Post Acceleration Voltage
38 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 8: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/8.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
13 kV Extraction Voltage
35 kV Platform Voltage
22 kV Post Acceleration Voltage
35 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 9: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/9.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
12 kV Extraction Voltage
35 kV Platform Voltage
23 kV Post Acceleration Voltage
32 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 10: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/10.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
11 kV Extraction Voltage
35 kV Platform Voltage
24 kV Post Acceleration Voltage
28 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 11: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/11.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
10 kV Extraction Voltage
35 kV Platform Voltage
25 kV Post Acceleration Voltage
25 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 12: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/12.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
9 kV Extraction Voltage
35 kV Platform Voltage
26 kV Post Acceleration Voltage
21 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 13: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/13.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
8 kVExtraction Voltage
35 kV Platform Voltage
27 kV Post Acceleration Voltage
17 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 14: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/14.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
7 kV Extraction Voltage
35 kV Platform Voltage
28 kV Post Acceleration Voltage
13 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 15: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/15.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
6.5 kV Extraction Voltage
35 kV Platform Voltage
28.5 kV Post Acceleration Voltage
12 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 16: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/16.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
6 kVExtraction Voltage
35 kV Platform Voltage
29 kV Post Acceleration Voltage
10 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 17: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/17.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
5.5 kV Extraction Voltage
35 kV Platform Voltage
28.5 kV Post Acceleration Voltage
9 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 18: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/18.jpg)
2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
17 kV Extraction Voltage
35 kV Platform Voltage
18 kV Post Acceleration Voltage
47 mA Beam Current
355 mm downstream from ground plane of post acceleration gap
![Page 19: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/19.jpg)
17 kV Extract Potential
-60 -600-30 30
0
50
100
-50
-100
x (mm)
x ‘(m
Ra
ds)
-60 -600-30 30
0
50
100
-50
-100 y (mm)
y ‘(mRads)
0.84 πmm-mRad norm rms 0.92 πmm-mRad norm rms
47 mA Beam Current
The Present Situation
![Page 20: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/20.jpg)
Multi Beamlett Extraction
12345
H2CsCs
To study beam transport aperture plates with 5 separate 1 mm diameter holes have been constructed.
Position of Caesium and Hydrogen dispensing holes
Hole Index
![Page 21: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/21.jpg)
VARY EXTRACTION VOLTAGE
![Page 22: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/22.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
6 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 23: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/23.jpg)
7 kV Extraction Voltage
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
18 kV Post Acceleration Voltage
![Page 24: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/24.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
8 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 25: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/25.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
9 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 26: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/26.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
10 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 27: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/27.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
11 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 28: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/28.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
12 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 29: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/29.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
13 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 30: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/30.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
14 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 31: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/31.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
15 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 32: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/32.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
16 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 33: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/33.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
17 kV Extraction Voltage
18 kV Post Acceleration Voltage
![Page 34: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/34.jpg)
0
5
10
15
20
25
30
35
40
6 8 10 12 14 16 18
Extraction Voltage (kV)
Be
am
Cu
rre
nt (
mA
) HOLE1
HOLE2
HOLE3
HOLE4
HOLE5
ALL
SUM
5
H2CsCs
4 3 2 1
Beam Current Variation with Extraction Voltage
![Page 35: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/35.jpg)
Mapping the Field
5
H2CsCs
4 3 2 1 θ
r
r = 105 mm
r = 55 mmB
B
![Page 36: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/36.jpg)
0
0.1
0.2
0.3
0.4
0.5
0.6
0 10 20 30 40 50 60 70 80 90
Angle (Degrees)
B (
T)
r = 55
r = 60
r = 65
r = 70
r = 75
r = 80
r = 85
r = 90
r = 95
r = 100
r = 105
Sector Magnet Field
![Page 37: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/37.jpg)
0
0.1
0.2
0.3
0.4
0.5
0.6
55 60 65 70 75 80 85 90 95 100 105r (mm)
B (
T)
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
0
0.1
0.2
0.3
0.4
0.5
0.6
55 60 65 70 75 80 85 90 95 100 105r (mm)
B (
T)
0.00
0.99
1.98
2.97
4.05
5.05
6.04
7.03
8.02
9.01
10.00
0
0.1
0.2
0.3
0.4
0.5
0.6
55 60 65 70 75 80 85 90 95 100 105r (mm)
B (
T)
80.00
80.99
81.98
82.97
83.96
85.05
86.04
87.03
88.02
89.01
90.00
Angle (Degrees)
Magnetic Field
![Page 38: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/38.jpg)
0
0.5
1
1.5
2
55 60 65 70 75 80 85 90 95 100 105r (mm)
n
0.00
0.99
1.98
2.97
3.96
5.05
6.04
7.03
8.02
9.01
10.00
0
0.5
1
1.5
2
55 60 65 70 75 80 85 90 95 100 105r (mm)
n
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
0
0.5
1
1.5
2
55 60 65 70 75 80 85 90 95 100 105r (mm)
n
80.00
80.99
81.98
82.97
83.96
85.05
86.04
87.03
88.02
89.01
90.00
Angle (Degrees)
Field Index
![Page 39: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/39.jpg)
Overall Field Index
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
55 60 65 70 75 80 85 90 95 100 105
r (mm)
n
![Page 40: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/40.jpg)
Sector Magnet Modifications
5
H2CsCs
4 3 2 1
![Page 41: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/41.jpg)
Sector Magnet Modifications
5
H2CsCs
4 3 2 1
![Page 42: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/42.jpg)
Sector Magnet Modifications
5
H2CsCs
4 3 2 1
![Page 43: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/43.jpg)
Sector Magnet Modifications
5
H2CsCs
4 3 2 1
![Page 44: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/44.jpg)
![Page 45: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/45.jpg)
VARYPOST ACCELERATION
VOLTAGE
![Page 46: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/46.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap23 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 47: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/47.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap25 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 48: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/48.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap26 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 49: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/49.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap27 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 50: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/50.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap28 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 51: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/51.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap29 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 52: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/52.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap30 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 53: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/53.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap31 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 54: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/54.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap32 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 55: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/55.jpg)
HOLE 1 HOLE 2
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap33 kV Post Acceleration Voltage
7 kV Extraction Voltage
![Page 56: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/56.jpg)
VARY SECTOR MAGNET CURRENT
![Page 57: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/57.jpg)
HOLE1
5.5 A Sector Magnet Current
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap7 kV Extraction Voltage
28 kV Post Acceleration Voltage
![Page 58: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/58.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
6.0 A Sector Magnet Current355 mm downstream from ground plane of post acceleration gap
7 kV Extraction Voltage 28 kV Post Acceleration Voltage
![Page 59: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/59.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
6.5 A Sector Magnet Current355 mm downstream from ground plane of post acceleration gap
7 kV Extraction Voltage 28 kV Post Acceleration Voltage
![Page 60: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/60.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
355 mm downstream from ground plane of post acceleration gap
7.0 A Sector Magnet Current
7 kV Extraction Voltage 28 kV Post Acceleration Voltage
![Page 61: Multi Beamlett Extraction Experiments and Sector Magnet Field Investigation](https://reader036.vdocument.in/reader036/viewer/2022070404/56813be4550346895da51099/html5/thumbnails/61.jpg)
HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
7.5 A Sector Magnet Current355 mm downstream from ground plane of post acceleration gap
7 kV Extraction Voltage 28 kV Post Acceleration Voltage
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HOLE 1 HOLE 2 HOLE 3
HOLE 4 HOLE 5 ALL 5
8.0 A Sector Magnet Current355 mm downstream from ground plane of post acceleration gap
7 kV Extraction Voltage 28 kV Post Acceleration Voltage
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VARY SCINTILATOR POSITION
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HOLE 3 ALL 5
355 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
405 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
455 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
505 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
555 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
605 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
655 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
705 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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HOLE 3 ALL 5
755 mm downstream from ground plane of post acceleration gap8 kV Extraction Voltage
27 kV Post Acceleration Voltage
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0 μs
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10 μs
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20 μs
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30 μs
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40 μs
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50 μs
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60 μs
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70 μs
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80 μs
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90 μs
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100 μs
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110 μs
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120 μs
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130 μs
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140 μs
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150 μs
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160 μs
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170 μs
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180 μs
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190 μs
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200 μs
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210 μs
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220 μs
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Cause of the cobra head
5
H2CsCs
4 3 2 1
Hydrogen causing the meniscus to blow out?
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2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
10 kV Extraction Voltage
35 kV Platform Voltage
25 kV Post Acceleration Voltage
25 mA Beam Current
SLIT
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2.5
mA/cm2
2.0
1.5
1.0
0.5
0.0
10 kVExtraction Voltage
35 kV Platform Voltage
25 kV Post Acceleration Voltage
5.8 mA Beam Current
HOLE
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Additional
VARY EXTRACT ELECTRODE GAP
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0
10
20
30
40
50
60
70
80
6 8 10 12 14 16 18
Extraction Voltage (kV)
Be
am
Cu
rre
nt (
mA
)
= 10 mm Post Ac. Gap / 1.1 mm Ext. Jaws= 10 mm Post Ac. Gap / 2.1 mm Ext. Jaws= 55 mm Post Ac. Gap / 2.1 mm Ext. Jaws
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2.1 mm ext elec new PAE level with em scanners
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1.1 mm ext elec new PAE level with em scanners
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2.1 mm ext elec new PAE level with em scanners
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1.1 mm ext elec new PAE level with em scanners
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2.1 mm ext elec new PAE level with em scanners
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1.1 mm ext elec new PAE level with em scanners
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0.00E+00
5.00E+08
1.00E+09
1.50E+09
2.00E+09
2.50E+09
3.00E+09
0 2 4 6 8 10 12 14
Extraction Voltage (kV)
Inte
rgra
ted
Co
un
t
1.1mm
2.1mm
Integrated Light output for different extract jaw gaps
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-2
-1
0
1
2
3
4
55 60 65 70 75 80 85 90 95 100 105
n
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