Beam Text May 17 2012: Difference between revisions

From New IAC Wiki
Jump to navigation Jump to search
← Older editNewer edit →
Setisadi (talk | contribs)
6,202 edits
Setisadi (talk | contribs)
6,202 edits
No edit summary
Line 46: Line 46:


= Energy Scan at 15 esh MeV =
= Energy Scan at 15 esh MeV =
[[https://wiki.iac.isu.edu/index.php/Kiwi_Dipole_Mappings#Estimation_for_En_vs_I Dipole Map]]


== 1. Tuning ==
== 1. Tuning ==
Line 105: Line 107:


=== En Scan===
=== En Scan===
  Dipole    FC
  Dipole    FC         En
  Coil      Current
  Coil      Current
  Current  Reading
  Current  Reading
  (A)      (mA)
  (A)      (mA)      (MeV)
  27        1.264
  27        1.264     13.5305
  28        1.596
  28        1.596     13.9129
  29        2.336
  29        2.336     14.2850
  30        3.7
  30        3.7       14.6469
  30.5      4.18
  30.5      4.18     14.8240
  31        4.7
  31        4.7       14.9985
  31.5      7.26
  31.5      7.26     15.1704
  32        8.56
  32        8.56     15.3398


== Quad Scanning for Emittance ==
== Quad Scanning for Emittance ==
Line 204: Line 206:


== Energy Scan ==  
== Energy Scan ==  
[[https://wiki.iac.isu.edu/index.php/Kiwi_Dipole_Mappings#Estimation_for_En_vs_I Dipole Map]]
  Dipole    FC        En  
  Dipole    FC        En  
  Coil      Current
  Coil      Current
  Current  Reading
  Current  Reading
  (A)      (mA)      (MeV)
  (A)      (mA)      (MeV)
  12        1.712
  12        1.712     6.5610
  12.5      3.344      
  12.5      3.344     6.8305   
  13        6.72
  13        6.72     7.0975
  13.5      9.44
  13.5      9.44     7.3620
  14        20
  14        20       7.6238
  14.5      33.12
  14.5      33.12     7.8831
  15        33.6
  15        33.6     8.1399
  15.3      28.64     8.2927
  15.3      28.64     8.2927
  15.5      24.56
  15.5      24.56     8.3940
  15.7      20.88
  15.7      20.88     8.4950
  16        16.4
  16        16.4     8.6456
  16.2      12.48
  16.2      12.48     8.7455
  16.5      9.36  
  16.5      9.36     8.8946
  16.7      6.48
  16.7      6.48     8.9935
  17        3.94
  17        3.94     9.1411
  17.3      1.968
  17.3      1.968     9.2877
  17.5      1.368
  17.5      1.368     9.3849
  17.8      0.936
  17.8      0.936     9.5300
  18        0.648
  18        0.648     9.6262
  19        0.332
  19        0.332     10.1012
  20        0.332
  20        0.332     10.5658


== Quad Scanning for Emittance ==
== Quad Scanning for Emittance ==
Line 316: Line 321:


== Energy Scan ==  
== Energy Scan ==  
[[https://wiki.iac.isu.edu/index.php/Kiwi_Dipole_Mappings#Estimation_for_En_vs_I Dipole Map]]
  Dipole    FC        En
  Dipole    FC        En
  Coil      Current   
  Coil      Current   
  Current  Reading
  Current  Reading
  (A)      (mA)      (MeV)
  (A)      (mA)      (MeV)
  4        0.592
  4        0.592     1.8985
  4.5      0.86
  4.5      0.86       2.2091
  5        1.54
  5        1.54       2.5172
  5.5      2.4
  5.5      2.4       2.8228
  6        3.7
  6        3.7       3.1257
  6.5      4.82
  6.5      4.82       3.4261
  7        5.94
  7        5.94       3.7240
  7.5      6.54
  7.5      6.54       4.0192
  8        6.84      4.3119
  8        6.84      4.3119
  8.5      6.1
  8.5      6.1       4.6021
  9        4.9
  9        4.9       4.8896
  9.5      2.76
  9.5      2.76       5.1746
  10        1.48    
  10        1.48       5.4570
  10.5      0.296
  10.5      0.296     5.7369




Line 395: Line 403:


== Energy Scan ==  
== Energy Scan ==  
[[https://wiki.iac.isu.edu/index.php/Kiwi_Dipole_Mappings#Estimation_for_En_vs_I Dipole Map]]
  Dipole    FC        En
  Dipole    FC        En
  Coil      Current   
  Coil      Current   
  Current  Reading
  Current  Reading
  (A)      (mA)      (MeV)
  (A)      (mA)      (MeV)
  8        0.5
  8        0.5       4.3119
  9        0.6
  9        0.6       4.8896
  10        0.67
  10        0.67     5.4570
  11        0.716
  11        0.716     6.0141
  12        0.752
  12        0.752     6.5610
  13        0.828
  13        0.828     7.0975
  14        0.896
  14        0.896     7.6238
  15        1.112
  15        1.112     8.1399
  16        1.328
  16        1.328     8.6456
  17        1.624
  17        1.624     9.1411
  18        1.896
  18        1.896     9.6262
  19        2.448
  19        2.448     10.1012
  20        3.36
  20        3.36     10.5658
  21        4.82
  21        4.82     11.0201
  22        6.58
  22        6.58     11.4642
  22.2      7.88
  22.2      7.88     11.5518
  22.5      9.24
  22.5      9.24     11.6824
  22.7      10.0
  22.7      10.0     11.7690
  23        10.2
  23        10.2     11.8980
  23.1      11.2
  23.1      11.2     11.9408
  23.2      11.56
  23.2      11.56     11.9836
  23.3      13.04
  23.3      13.04     12.0262
  23.5      13.2
  23.5      13.2     12.1111
  23.8      13.04
  23.8      13.04     12.2377
  24        13.48
  24        13.48     12.3216
  24.2      12.36
  24.2      12.36     11.9836
  24.5      11.24
  24.5      11.24     12.5295
  24.7      10.2
  24.7      10.2     12.6119
  25        10.28
  25        10.28     12.7348
  25.1       8.6
  25.1     8.6       12.7756
  25.2      6.92
  25.2      6.92     12.8162
  25.5      6.2
  25.5      6.2       12.9376
  25.7      4.84
  25.7      4.84     13.0180
  26        3.64
  26        3.64     13.1378
  26.5      1.82
  26.5      1.82     13.3354
  27        1.28
  27        1.28     13.5305
  28        0.56
  28        0.56     13.9129
  29        0.364
  29        0.364     14.2850
  30        0.364
  30        0.364     14.6469

Revision as of 01:48, 27 May 2012

Preparation

[Check List]

0. MATLAB emittance analysis: (working?) -- yes

1. Magnets: --Working

2. Camera: (a)--Working, (b)--shielding-good,(c) Sync? -- good

3. Flags: --Working

4. Farady Cup: hocked up? --yes

5. Blank off for camera on? --good

6. Gas bottle for valve full? --Yes

7. Gas bottle for flags full? --Yes

8. 3 Pickup Coils (Green Torroids): (1)@gun: hocked-up; (2)@accelerator exit: hocked-up to 2 red strip wire. Now connected to linac monitor panel which labeled as "J12 from back", "Scan field Mon" from front. (3)@end of beamline:

Start List

1) Valve exit of cavity opened?

2) Faraday cups are hocked up?

3) Target in?

4) Start the camera? Turn light on and off, observe if camera working. Load run script from "C:\Documents and Settings\sadiq\My Documents\26Apr2012\Camera_Settings".

Camera triggering issue

1. camera is triggered by something?

2. When camera trig is plugged into pulse generator, pulse generator set to trigger externally, but no external trigger connected to pulse generator, and Klystron HV is on, camera triggers.

3. Is camera being triggered by the noise created by the Klystron HV?

4. We have camera grounding issue.

can not bend the beam

Wrong polarity on the dipole. To switch the polarity on the dipole, we need turn on the power supply for the relays.

Energy Scan at 15 esh MeV

[Dipole Map]

1. Tuning

Energy Switch Out (High En Range)
Dipole Coil Current
e- Beam Energy () MeV (mapping )
Solenoid 1 12.9 A
Solenoid 2 13.7 A
Gun Hor 0.1 A
Gun Ver 0.2 A
Output Hor -0.4 A
Output Ver 0.0 A
Rep Rate 63
Gun HV 8.97(Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.291 MHz
Modulator HV Power Supply 4.84 (Knob Setting)
RF macro Pulse Length (FWHM) 200 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Peak Current on FC 1 (45 deg) 114 mAmps File:17May2012 FC 0deg.png
Peak Current on FC 2 (45 deg) mAmps
Scope on FC 1 File:Hrrl 26Apr2012 EnTest 4MeV FC1 cur.png
Scope on FC 2 File:Hrrl 26Apr2012 EnTest 4MeV FC2 cur.png
Beam Spot

En Scan

Dipole    FC         En
Coil      Current
Current   Reading
(A)       (mA)      (MeV)
27        1.264     13.5305
28        1.596     13.9129
29        2.336     14.2850 
30        3.7       14.6469
30.5      4.18      14.8240
31        4.7       14.9985
31.5      7.26      15.1704
32        8.56      15.3398

Quad Scanning for Emittance

En Scan at 15.6004336 MeV. Q1 is on, All other quads are off. 88.8 mAmp Peak Current.

1) Scan from -10 Amps to 10 Amps

2) Increment at 0.4 Amps.

3) Name images by numbers start from 1. Then go on.

Like: -10 Amp is 1, -9.6 Amp is 2, and so on til 10 Amp is named 51.

4) Scan multipole (10) times from -10 to 10 Amps, and put them in different folders.

5) For each time, take back ground images. It should be done when RF is on and gun is off.

6) After the scan take a scope image for the current of the FC after the OTR screen.

Scan with Q1

After scan, put the files Run "Emit_Calc_N10toP10_Q1" under "C:\Documents and Settings\sadiq\My Documents\MATLAB\Emit_Calc\15MeV\Q1" directory.

Scan with Q6

After scan, put the files Run "Emit_Calc_N10toP10_Q6" under "C:\Documents and Settings\sadiq\My Documents\MATLAB\Emit_Calc\15MeV\Q1" directory.

Dipole Scanning for Energy Measurement

Energy Scan at Low Energy 8 MeV esh

1. Tuning

Energy switch is in, linac operates at low energy

Energy Switch In (Low En Range)
Dipole Coil Current
nominal e- Beam Energy () MeV (mapping )
Solenoid 1 12.1 A
Solenoid 2 9.6 A
Gun Hor + 0.3 A
Gun Ver 0 A
Output Hor + 0.6 A
Output Ver + 0.3 A
Rep Rate 63
Gun HV 8.99(Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.388 MHz
Modulator HV Power Supply 4.185 (Knob Setting)
RF macro Pulse Length (FWHM) 200 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Scope on FC 1 99.2 mA File:Hrrl 17May2012 EnTest LowEn1 FC0deg cur.png
Scope on FC 2 File:Hrrl 17May2012 EnTest LowEn1 FC45deg cur.png
Beam Spot

Energy Scan

[Dipole Map] 

Dipole    FC        En 
Coil      Current
Current   Reading
(A)       (mA)      (MeV)
12        1.712     6.5610
12.5      3.344     6.8305    
13        6.72      7.0975
13.5      9.44      7.3620
14        20        7.6238
14.5      33.12     7.8831
15        33.6      8.1399
15.3      28.64     8.2927
15.5      24.56     8.3940
15.7      20.88     8.4950
16        16.4      8.6456
16.2      12.48     8.7455
16.5      9.36      8.8946
16.7      6.48      8.9935
17        3.94      9.1411
17.3      1.968     9.2877
17.5      1.368     9.3849
17.8      0.936     9.5300
18        0.648     9.6262
19        0.332     10.1012
20        0.332     10.5658

Quad Scanning for Emittance

En Scan at 15.6004336 MeV. Q1 is on, All other quads are off. 88.8 mAmp Peak Current.

1) Scan from -10 Amps to 10 Amps

2) Increment at 0.4 Amps.

3) Name images by numbers start from 1. Then go on.

Like: -10 Amp is 1, -9.6 Amp is 2, and so on til 10 Amp is named 51.

4) Scan multipole (10) times from -10 to 10 Amps, and put them in different folders.

5) For each time, take back ground images. It should be done when RF is on and gun is off.

6) After the scan take a scope image for the current of the FC after the OTR screen.

Scan with Q1

Scan with Q6

Dipole Scanning for Energy Measurement

Energy Scan at Low Energy 3 MeV esh

1. Tuning

Energy switch is in, linac operates at low energy

Energy Switch In (Low En Range)
Dipole Coil Current
nominal e- Beam Energy () 3 MeV (mapping )
Solenoid 1 7.0 A
Solenoid 2 4.1 A
Gun Hor 0.0 A
Gun Ver 0.0 A
Output Hor -0.1 A
Output Ver -0.1 A
Rep Rate 63
Gun HV 8.99(Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.284 MHz
Modulator HV Power Supply 3.85 (Knob Setting)
RF macro Pulse Length (FWHM) 200 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Scope on FC 1 34.2 mA File:Hrrl 17May2012 EnTest LowEn2 FC0deg cur.png
Scope on FC 2 File:Hrrl 17May2012 EnTest LowEn2 FC45deg cur.png
Beam Spot File:Hrrl 26Apr2012 EnTest 15MeV beam im.png

Energy Scan

[Dipole Map] 

Dipole    FC        En
Coil      Current   
Current   Reading
(A)       (mA)      (MeV)
4         0.592      1.8985
4.5       0.86       2.2091
5         1.54       2.5172
5.5       2.4        2.8228
6         3.7        3.1257
6.5       4.82       3.4261
7         5.94       3.7240
7.5       6.54       4.0192
8         6.84       4.3119
8.5       6.1        4.6021
9         4.9        4.8896
9.5       2.76       5.1746
10        1.48       5.4570
10.5      0.296      5.7369


Energy Scan at Low Energy 12 MeV esh

1. Tuning

Energy switch is out, linac operates at high energy range.

Energy Switch Out(High En Range)
Dipole Coil Current
nominal e- Beam Energy () 12 MeV (mapping )
Solenoid 1 6.9 A
Solenoid 2 5.2 A
Gun Hor 0.1 A
Gun Ver 0.0 A
Output Hor -0.2 A
Output Ver 0.5 A
Rep Rate 63
Gun HV 8.99(Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.262 MHz
Modulator HV Power Supply 4.24 (Knob Setting)
RF macro Pulse Length (FWHM) 200 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Scope on FC 1 67.2 mA File:Hrrl 17May2012 EnTest 12MeV FC0deg cur.png
Scope on FC 2 File:Hrrl 17May2012 EnTest 12MeV FC45deg cur.png
Beam Spot

Energy Scan

[Dipole Map] 

Dipole    FC        En
Coil      Current   
Current   Reading
(A)       (mA)      (MeV)
8         0.5       4.3119
9         0.6       4.8896
10        0.67      5.4570
11        0.716     6.0141
12        0.752     6.5610
13        0.828     7.0975
14        0.896     7.6238
15        1.112     8.1399
16        1.328     8.6456
17        1.624     9.1411
18        1.896     9.6262
19        2.448     10.1012
20        3.36      10.5658
21        4.82      11.0201
22        6.58      11.4642
22.2      7.88      11.5518
22.5      9.24      11.6824
22.7      10.0      11.7690
23        10.2      11.8980
23.1      11.2      11.9408
23.2      11.56     11.9836
23.3      13.04     12.0262
23.5      13.2      12.1111
23.8      13.04     12.2377
24        13.48     12.3216
24.2      12.36     11.9836
24.5      11.24     12.5295
24.7      10.2      12.6119
25        10.28     12.7348
25.1      8.6       12.7756
25.2      6.92      12.8162
25.5      6.2       12.9376
25.7      4.84      13.0180
26        3.64      13.1378
26.5      1.82      13.3354
27        1.28      13.5305
28        0.56      13.9129
29        0.364     14.2850
30        0.364     14.6469
Retrieved from "https://wiki.iac.isu.edu/index.php?title=Beam_Text_May_17_2012&oldid=74585"