Difference between revisions of "Beam Test Apr 24 2012"

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(Created page with '= Getting Ready Punchlist = 1) Get matlab ready for emittance measurement. 2) Install control box. 3) Clean up imaging system. 4) Determine dipole current setting. = Emittance T…')
 
 
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= Getting Ready Punchlist =
 
= Getting Ready Punchlist =
−
1) Get matlab ready for emittance measurement.
 
−
2) Install control box.
 
−
3) Clean up imaging system.
 
−
4) Determine dipole current setting.
 
  
−
= Emittance Test =
+
1) Get matlab ready for emittance measurement. (Not done due to Matlab licence issue)
 +
 
 +
(Done) 2) Install control box.
 +
(Done) 3) Clean up imaging system.
 +
(Done) 4) Determine dipole current setting.
 +
 
 +
= Test List =
 +
 
 +
== Energy Test ==
 +
 
 +
===1. Chad tunes HRRL ===
 +
 
 +
: 4.11
 +
 
 +
RF: 2857.351
 +
 
 +
 
 +
{| border="1"
 +
|  MOD HVPS  ||RF        || FC1      ||
 +
|-
 +
|  4.11 (nob)  || 2857.351  ||  34.2 mA  || 
 +
|-
 +
 
 +
|}
 +
 
 +
=== Test beam stability at different energies ===
 +
 
 +
Start from 2 MeV go up energy.
 +
 
 +
Assuming magnet polarity swith "up" as positive and "down" as negative.
 +
 
 +
==== 16 MeV ====
 +
 
 +
{| border="1"
 +
|  e- Beam Energy  (estimate) || 16 MeV
 +
|-
 +
| Solenoid 1    || 16.2 A
 +
|-
 +
| Solenoid 2      ||  0  A
 +
|-
 +
| Gun Ver        || -0.2 A
 +
|-
 +
| Gun Hor        || 0  A
 +
|-
 +
|Output Hor      || -0.3 A
 +
|-
 +
| Output Ver    || -1.2 A
 +
|-
 +
|  Gun HV  ||  (Knob Setting)
 +
|-
 +
|  Gun Grid Voltage  ||  (Knob Setting)
 +
|-
 +
|  RF frequency  || 2856.382 MHz
 +
|-
 +
|  Modulator HV Power Supply  || 4.98 (Knob Setting)
 +
|-
 +
|  RF macro Pulse Length (FWHM)  || 300 ns
 +
|- 
 +
|Q1  (A)|| 0
 +
|- 
 +
|Q2  (A)|| 0.6
 +
|- 
 +
|Q3  (A)|| 0
 +
|- 
 +
|Q4  (A)|| +10
 +
|- 
 +
|Q5  (A)|| -7
 +
|- 
 +
|Q6  (A)|| -5
 +
|-
 +
|  Peak Current on FC    || 135 mAmps
 +
|-
 +
|  Scope on FC  ||  [[File:hrrl_24Apr2012_EnTest_16MeV_FC_cur.png | 200 px]]
 +
|-
 +
|-
 +
| Beam Spot ||  [[File:hrrl_24Apr2012_EnTest_16MeV_beam_im.png | 200 px]]
 +
|}
 +
 
 +
==== 14 MeV ====
 +
 
 +
{| border="1"
 +
|  e- Beam Energy  (estimate from 2011 Mar setting) || 14 MeV (with big power supply Check with chad)
 +
|-
 +
| Solenoid 1    || 16.2 A 
 +
|-
 +
| Solenoid 2      ||  0  A
 +
|-
 +
| Gun Ver        || -0.2 A
 +
|-
 +
| Gun Hor        || 0  A
 +
|-
 +
|Output Hor      || -0.3 A
 +
|-
 +
| Output Ver    || -1.2 A
 +
|-
 +
|  Gun HV  ||  (Knob Setting)
 +
|-
 +
|  Gun Grid Voltage  ||  (Knob Setting)
 +
|-
 +
|  RF frequency  || 2856.382 MHz
 +
|-
 +
|  Modulator HV Power Supply  || 4.40 (Knob Setting)
 +
|-
 +
|  RF macro Pulse Length (FWHM)  || 300 ns
 +
|- 
 +
|Q1  (A)|| 0
 +
|- 
 +
|Q2  (A)|| 0
 +
|- 
 +
|Q3  (A)|| 0
 +
|- 
 +
|Q4  (A)|| +10
 +
|- 
 +
|Q5  (A)|| -7
 +
|- 
 +
|Q6  (A)|| -4
 +
|-
 +
|  Peak Current on FC    || 88 mAmps
 +
|-
 +
|  Scope on FC  ||  [[File:hrrl_24Apr2012_EnTest_14MeV_FC_cur.png | 200 px]]
 +
|-
 +
|-
 +
| Beam Spot ||  [[File:hrrl_24Apr2012_EnTest_14MeV_beam_im.png | 200 px]]
 +
|}
 +
 
 +
 
 +
 
 +
==== 10 MeV First Setting ====
 +
 
 +
{| border="1"
 +
|  e- Beam Energy  () ||
 +
|-
 +
| Solenoid 1    || 16.2 A 
 +
|-
 +
| Solenoid 2      ||  0  A
 +
|-
 +
| Gun Ver        || -0.2 A
 +
|-
 +
| Gun Hor        || 0  A
 +
|-
 +
|Output Hor      || -0.3 A
 +
|-
 +
| Output Ver    || -1.2 A
 +
|-
 +
|  Gun HV  ||  (Knob Setting)
 +
|-
 +
|  Gun Grid Voltage  ||  (Knob Setting)
 +
|-
 +
|  RF frequency  || 2856.382 MHz
 +
|-
 +
|  Modulator HV Power Supply  || 4.40 (Knob Setting)
 +
|-
 +
|  RF macro Pulse Length (FWHM)  || 300 ns
 +
|- 
 +
|Q1  (A)|| 0
 +
|- 
 +
|Q2  (A)|| 0
 +
|- 
 +
|Q3  (A)|| 0
 +
|- 
 +
|Q4  (A)|| +10
 +
|- 
 +
|Q5  (A)|| -7
 +
|- 
 +
|Q6  (A)|| -4
 +
|-
 +
|  Peak Current on FC    || 88 mAmps
 +
|-
 +
|  Scope on FC  ||  [[File:hrrl_24Apr2012_EnTest_14MeV_FC_cur.png | 200 px]]
 +
|-
 +
|-
 +
| Beam Spot ||  [[File:hrrl_24Apr2012_EnTest_14MeV_beam_im.png | 200 px]]
 +
|}
 +
 
 +
==== 10 MeV Second Setting- Saidq's Tune ====
 +
 
 +
{| border="1"
 +
|  e- Beam Energy  () || 10 MeV
 +
|-
 +
| Solenoid 1    || 7.2 A 
 +
|-
 +
| Solenoid 2      ||  2.9  A
 +
|-
 +
| Gun Hor        || 0  A
 +
|-
 +
| Gun Ver        || 0 A
 +
|-
 +
|Output Hor      || -0.2 A
 +
|-
 +
| Output Ver    || 0.3 A
 +
|-
 +
|  Gun HV  || 10.00 (Knob Setting)
 +
|-
 +
|  Gun Grid Voltage  || 10.00 (Knob Setting)
 +
|-
 +
|  RF frequency  || 2856.373 MHz
 +
|-
 +
|  Modulator HV Power Supply  || 4.20 (Knob Setting)
 +
|-
 +
|  RF macro Pulse Length (FWHM)  || 300 ns
 +
|- 
 +
|Q1  (A)|| 0
 +
|- 
 +
|Q2  (A)|| 0
 +
|- 
 +
|Q3  (A)|| 0
 +
|- 
 +
|Q4  (A)|| 0
 +
|- 
 +
|Q5  (A)|| 0
 +
|- 
 +
|Q6  (A)|| 0
 +
|-
 +
|  Peak Current on FC    || 73.2 mAmps
 +
|-
 +
|  Scope on FC  ||  [[File:hrrl_24Apr2012_EnTest_14MeV_FC_cur.png | 200 px]]
 +
|-
 +
|-
 +
| Beam Spot ||  [[File:hrrl_24Apr2012_EnTest_14MeV_beam_im.png | 200 px]]
 +
|}
 +
 
 +
 
 +
==== 4-5 MeV Setting ====
 +
 
 +
Energy switch changed to low energy setting. Part of the cavity is grounded.
 +
 
 +
{| border="1"
 +
| Energy Switch || In (Part of the cavity is grounded, HRRL low energy operation mode )
 +
|-
 +
|  e- Beam Energy  () || 4-5 MeV
 +
|-
 +
| Solenoid 1    || 7.2 A 
 +
|-
 +
| Solenoid 2      ||  2.9  A
 +
|-
 +
| Gun Hor        || 0  A
 +
|-
 +
| Gun Ver        || 0 A
 +
|-
 +
|Output Hor      || -0.2 A
 +
|-
 +
| Output Ver    || 0.3 A
 +
|-
 +
|  Gun HV  || 10.00 (Knob Setting)
 +
|-
 +
|  Gun Grid Voltage  || 10.00 (Knob Setting)
 +
|-
 +
|  RF frequency  || 2856.373 MHz
 +
|-
 +
|  Modulator HV Power Supply  || 4.00 (Knob Setting)
 +
|-
 +
|  RF macro Pulse Length (FWHM)  || 300 ns
 +
|- 
 +
|Q1  (A)|| 0
 +
|- 
 +
|Q2  (A)|| 0
 +
|- 
 +
|Q3  (A)|| 0
 +
|- 
 +
|Q4  (A)|| 0
 +
|- 
 +
|Q5  (A)|| 0
 +
|- 
 +
|Q6  (A)|| 0
 +
|-
 +
|  Peak Current on FC    ||  mAmps
 +
|-
 +
|  Scope on FC  ||  [[File:hrrl_24Apr2012_EnTest_4MeV_FC_cur.png | 200 px]]
 +
|-
 +
|-
 +
| Beam Spot ||  [[File:hrrl_24Apr2012_EnTest_4MeV_beam_im.png | 200 px]]
 +
|}
 +
 
 +
 
 +
Gun has been up to air for 3 times. It could be oxidation, contamination. Or it could be gun died, less likely.  Roasting the gun to burn off the contamination is an idea. Chad just roasted gun for with higher current, we saw gun current increased many times. We will leave roasted for one night.

Latest revision as of 21:40, 24 April 2012

Getting Ready Punchlist

1) Get matlab ready for emittance measurement. (Not done due to Matlab licence issue) 

(Done) 2) Install control box. 
(Done) 3) Clean up imaging system.
(Done) 4) Determine dipole current setting.

Test List

Energy Test

1. Chad tunes HRRL

4.11

RF: 2857.351


MOD HVPS RF FC1
4.11 (nob) 2857.351 34.2 mA

Test beam stability at different energies

Start from 2 MeV go up energy.

Assuming magnet polarity swith "up" as positive and "down" as negative.

16 MeV

e- Beam Energy (estimate) 16 MeV
Solenoid 1 16.2 A
Solenoid 2 0 A
Gun Ver -0.2 A
Gun Hor 0 A
Output Hor -0.3 A
Output Ver -1.2 A
Gun HV (Knob Setting)
Gun Grid Voltage (Knob Setting)
RF frequency 2856.382 MHz
Modulator HV Power Supply 4.98 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) 0
Q2 (A) 0.6
Q3 (A) 0
Q4 (A) +10
Q5 (A) -7
Q6 (A) -5
Peak Current on FC 135 mAmps
Scope on FC 200 px
Beam Spot 200 px

14 MeV

e- Beam Energy (estimate from 2011 Mar setting) 14 MeV (with big power supply Check with chad)
Solenoid 1 16.2 A
Solenoid 2 0 A
Gun Ver -0.2 A
Gun Hor 0 A
Output Hor -0.3 A
Output Ver -1.2 A
Gun HV (Knob Setting)
Gun Grid Voltage (Knob Setting)
RF frequency 2856.382 MHz
Modulator HV Power Supply 4.40 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) +10
Q5 (A) -7
Q6 (A) -4
Peak Current on FC 88 mAmps
Scope on FC 200 px
Beam Spot 200 px


10 MeV First Setting

e- Beam Energy ()
Solenoid 1 16.2 A
Solenoid 2 0 A
Gun Ver -0.2 A
Gun Hor 0 A
Output Hor -0.3 A
Output Ver -1.2 A
Gun HV (Knob Setting)
Gun Grid Voltage (Knob Setting)
RF frequency 2856.382 MHz
Modulator HV Power Supply 4.40 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) +10
Q5 (A) -7
Q6 (A) -4
Peak Current on FC 88 mAmps
Scope on FC 200 px
Beam Spot 200 px

10 MeV Second Setting- Saidq's Tune

e- Beam Energy () 10 MeV
Solenoid 1 7.2 A
Solenoid 2 2.9 A
Gun Hor 0 A
Gun Ver 0 A
Output Hor -0.2 A
Output Ver 0.3 A
Gun HV 10.00 (Knob Setting)
Gun Grid Voltage 10.00 (Knob Setting)
RF frequency 2856.373 MHz
Modulator HV Power Supply 4.20 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Peak Current on FC 73.2 mAmps
Scope on FC 200 px
Beam Spot 200 px


4-5 MeV Setting

Energy switch changed to low energy setting. Part of the cavity is grounded.

Energy Switch In (Part of the cavity is grounded, HRRL low energy operation mode )
e- Beam Energy () 4-5 MeV
Solenoid 1 7.2 A
Solenoid 2 2.9 A
Gun Hor 0 A
Gun Ver 0 A
Output Hor -0.2 A
Output Ver 0.3 A
Gun HV 10.00 (Knob Setting)
Gun Grid Voltage 10.00 (Knob Setting)
RF frequency 2856.373 MHz
Modulator HV Power Supply 4.00 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) 0
Q2 (A) 0
Q3 (A) 0
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Peak Current on FC mAmps
Scope on FC 200 px
Beam Spot 200 px


Gun has been up to air for 3 times. It could be oxidation, contamination. Or it could be gun died, less likely. Roasting the gun to burn off the contamination is an idea. Chad just roasted gun for with higher current, we saw gun current increased many times. We will leave roasted for one night.

Retrieved from "https://wiki.iac.isu.edu/index.php?title=Beam_Test_Apr_24_2012&oldid=73628"