PLS Corrector PS Upgrade and Orbit measurement using DBPM - … · 2006. 6. 23. · Local Ethernet HUB 3COM-24Port H V Corrector PS Controller Bergoz BPM Module EPICS OPIs MVME5110

Pohang Accelerator LaboratoryPOSTECH

EPICS collaboration meeting on 6~7 October 2005

Pohang Accelerator Laboratory

Kiman Ha, J.H [email protected]

PLS Corrector PS Upgrade and Orbit measurement using DBPM

Pohang Accelerator LaboratoryPOSTECHEPICS Collaboration Meeting 2005

Outline

-Status of Digital Corrector power supplies hardware-Status of PS control system-Data measurements-Orbit measurements using Libera tryout DBPM-Summary


Goals of orbit feedback

-Storage ring : 2.5 GeV 180 mA

-Orbit feedback operation using digital power supplies -Orbit stability with feedback (RMS)

- Short term (1 hour) : < 1 μm- Long term (12 hours) : < 3 μm

-Total 70 sets V type replaced and 32 V correction PS’s are involved for orbit feedback

-98 BPMs used for beam position measurement


Present PS upgrade status

-PS Upgrade statusAugust and September 2005, 70 vertical PS were

replaced to new digital controlled typeSeptember 2005, Hardware and Control system

CommissioningSeptember 28 2005, User run startingTotal budget : 650,000$ (Not include Control System)

-DBPMNovember 2003, Installed DBPM-2 from I-Tech August 2005, One of DBPM Libera tryout version

installed for TBT, damping time, RMS and MEAN orbit data measurement


Analog- Digital-Converter

2 ADC,16 Bit, 50 kHz

4 ADC, 12 Bit

2 DAC for debugging

DSP-controller incl. FPGA

6 Bit Digital Out

8 bit Digital Input

1 RS232

1 Fiber optics

Euro card size

Shark DSP

Shark links on backplane

Digital Control Unit from DIAMOND

- Originally developed by PSI EE group- DIAMOND has full-license


Installed PS in Shed #1 and Inside view

VME IOC CrateBergoz BPM

Optical fiber for EPICS interface

DCCT &IO interface board

1

2

3

4

5

6

VMIC-3122EVRVIPC664

MVME5110-400 MHz

Digital PS and Control Rack


Power Supplies IOCs

Control Network

SBC ADC EVR

#1 VME based IOC

Same configurations #2 to #12 IOC

W/S PC Windoswor LINUX

SBC: MVME5110-400 MHzADC:VMIVME-3122

6

1 1

B

2

x

1 x

4x

x

1x

Ern

e

A

2

x

8

2

x

x

1 x

x

1 x

5

7

1

Local Ethernet HUB 3COM-24Port

H V

Corrector PSController

Bergoz BPM Module

EPICS OPIs

MVME5110

+-10V analogX,Y,AGC

Event GeneratorRF 500.082MHzAC 60Hz

Clock and Triggerto BPM, CMPS, ADC

2KHz ~ 40KHz

2’nd Ethernet port

Fiber optics

VIPC664-TM

Digtal PS

vxWorks 5.5.1base 3.13.9CPU load 48% ~ 52%PS scan rate : 0.1 secADC 32CH : 0.01 sec

IOC internals:

Fiber


IOC and PS configuration

VMECPU

Carrier module TM module

PSIP-A

IP-B

IP-C

IP-D

Optical fiber link

MVME5110

VIPC664-TM

Event trigger

CH1

CH2

PSPS 8PS 8

PS 2PS 2

EVR


Control hardware

TM

Fiber I/O port

Industry Pack Carrier VME64x 4 slot boardsGreenspring

Vipc664Hytec 8002

Industry Pack Module for 2 power supplies

VME64x Transition modulefor 8 power supplies


Web monitoring

10 min

4 days

-PPC linux

-mySQL

-GUNPLOT


DPS Feedback operations - 1

V*10 is Amps

Beam current

Digital SettingADC input Readback

Current setting and ADC input readback by feedback operation40 Hours

Beam dump


Step response test

55.0A55.0001

55.0002

+55.0003

55.000555.0004

55.0A

Step response @55(A), 100uA step(1ppm)

1ppm @ full range

V*10 is Amps


DPS Feedback operations - 2

Operating output currents of vertical corrector

0 1000 2000 3000 4000 5000 6000 7000 800075.9

75.91

75.92

75.93

75.94

75.95

75.96

75.97

P oint

[A]

P 08C V 1

Current setting and DCCT output readback by feedback operation

SETTING

READBACK

0 1000 2000 3000 4000 5000 6000 7000 8000-23 .94

-23 .93

-23 .92

-23 .91

-23 .9

-23 .89

-23 .88

P o in t

[A]

P 0 8 C V 2

SETTING

READBACK

Delta is offset


Timing of DBPM for data sampling

=1.068 MHz

A,B,C,D

Ethernet

sf

0 1000 2000 3000 4000 5000 6000 7000 80002.675

2.68

2.685

2.69

2.695

2.7

2.705

2.71

2.715Y Position (TBT, 10kHz)

point

mm

Yrms-TBT= 0.0039583um y mean y stdYrms-10kHz= 0.0031294um


Turn by turn data measurement

0 1000 2000 3000 4000 5000 6000 7000 80002.675

2.68

2.685

2.69

2.695

2.7

2.705

2.71

2.715Y Position (TBT, 10kHz)

point

mm

Yrms-TBT= 0.0039583um y mean y stdYrms-10kHz= 0.0031294um

FIR filter TBT to 50 kHz

Upper: TBT data,Lower: Filtered data

1000 2000 3000 4000 5000 6000 7000 8000

2.305

2.31

2.315

2.32

2.325

2.33

2.335

2.34

2.345Y Position

[us]

[mm

]

TBT(1:8192,3:4)(:,1)FIR 50 kHz(1:8192,3:4)(:,2)


Damping time measurement

500 1000 1500 2000 2500 3000 3500 4000 4500 5000

2.7

2.8

2.9

3

3.1

3.2

3.3

3.4

3.5

3.6

[us]

[mm

]

X position damping time

500 1000 1500 2000 2500 3000 3500 4000 4500 50000

0.5

1

1.5

2

2.5

3

3.5

4Y position damping time

[us]

[mm

]

1ms

Injection

[mm]

[mm]

[us]


Response matrix measurement

100 150 200 250 300 350 400 45016

17

18

19

20

21

22Response Matrix (RMS)

Point

[um

]

0 100 200 300 400 5002.4

2.5

2.6

2.7

2.8

2.9

3

Response matrix (MEAN)

point

[mm

]


Summary

-Digital Power SuppliesThe PLS orbit feedback operation is based on EPICS

control system.70 of 19-bit digital controlled PS and there control

systems working very well.Satisfactory operation result used digital controlled PS

-DBPM LiberaTesting with Libera DBPM for orbit measurementsWe need replace full access version software for more

fast and widely applications (Tryout versions are just opened HTTP for access data, It takes 15 seconds of 8,000 data samplings )


Planes

Digital Power Supplies:Just performance monitoring

Digital BPM:Full accessible version driver install and porting EPICS

IOC and optimizationSingle bunch testing for LINAC


Acknowledgement

I am gratefully thank to :

F.Jene, L. Tener and Andreas in PSITony dobing, Mark Heron in DIAMOND

for the many advice and support during the work.

PLS Corrector PS Upgrade and Orbit measurement using DBPM - … · 2006. 6. 23. · Local Ethernet HUB 3COM-24Port H V Corrector PS Controller Bergoz BPM Module EPICS OPIs MVME5110

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