A.Blas AB/RF/FB APC meeting 20/4/2007 1 Status of the PS TFB Upgrade launched in July 2005 L. Arnaudon, A. Blas, F. Caspers, D. Glenat, R. Louwerse, V

A.Blas AB/RF/FBA.Blas AB/RF/FB APC meeting 20/4/2007APC meeting 20/4/2007 11

Status of the PS Status of the PS TFBTFBUpgrade launched in July 2005Upgrade launched in July 2005

L. Arnaudon, A. Blas, F. Caspers, D. Glenat, R. Louwerse, V. Rossi

1. Background2. System block-diagram3. Hardware overview4. Planning


PS TFBPS TFBBackground

05/05 Presentation to the APC to ask for some founding (new amplifiers, Strip line kicker upgradekicker impedance matching transformers, PLC control system, LHC type electronic core …)

System specified for < +/- 2mm injection errors and compatibility with LHC:

End 06 System expected to be ready


PS TFBPS TFB

Blue boxes represent new hardware since 6/05

Block diagram

BeamPick-up

SS02

VMEElectronic core

Pre-driver

PowerAmplifier

Control Interface

ClockGeneration

Particle Flight time

BetatronPhase difference

= (k+1)./2

BeamPick-up

SS98

Pick-upAmplifiers

signals

KickerSS97

WaterCooling

Power Attenuator


PS TFBPS TFB Pick-up amplifiers(J. Belleman)

Were ready in October 2003

BW: 20 kHz – 40 MHz80 dB dynamic range (compatible with ions)

Remotely programmable gain

Located in the ring below concrete slab


PS TFBPS TFB Electronic core

Ongoing design using the hardware foreseen for the LHC 1TFB

Ready in late 2007 ????.

NotchFilter

HilbertFilter

AutomaticDelay

G

G

PU 1(Aux)

PU 2

BTFSet-up

GAIN

DAC OUT

M=1M=3

ON/OFFFilter coefs

160 *FREV 160 *FREV

40 MHz &160 *FREV

(KFLIGHT - KLOOP CLK)TFIX

Automaticdelay

PU1-PU2Particle

Flight time PU1

PU2


PS TFBPS TFB Electronic core


PS TFBPS TFB Clock generation (J. Sladen)

1 GHz DDS

Available since mid-2004

Receives the frequency program from the PS central building and outputs the 160*Frev (< 80 MHz).


PS TFBPS TFB Pre-Amplifier

Fast Clipping of the output signal0 and 180o outputsProgrammable gainTFM setupLocal / Remote control Interface with the PLC controlCompatible with analogue systems


PS TFBPS TFB Power Amplifier

[2.5 kHz – 23 MHz], 3kW – 5ms, 750W - CW

4 amplifiers required+ 2 spares

2 amplifiers ready used in 2006 MDs3 amplifiers under final tests1 amplifier under construction waiting for missing material


PS TFBPS TFB Power Amplifier

Amplitude Phase

Power Response (inactive trace = version used in MD)


PS TFBPS TFB Impedance matching transformers

Input impedance: 50 ΩOutput impedance: 100 ΩEach coax: 50 ΩVoltage gain = 2

[ 2kHz – 40 MHz]up to 3 kW


PS TFBPS TFB Kicker


PS TFBPS TFB Kicker


PS TFBPS TFB Power loads

50 Ω / 30 dB Attenuator[ DC – 1GHz] 1 kW CW

100Ω to 50Ω resistive transition[ DC – 190 MHz] 1.6 kW CW


PS TFBPS TFB Power Control


PS TFBPS TFB Water cooling

Electric valves coupled to leak detectors


PS TFBPS TFB LHC 26 GeV + MTE MD setup

Pick-upSS98/100

Pick-upAmplifier

VertorSum

PowerAmplifiers

KickerSS97/100

FunctionGenerator

184 ns

SP2T

4 ns5 ns

100 MHz3dB BW

359.42 kHz2Vpp

Splitter

2 ns 2 ns

3 ns

1

2

Start 1PX.TF-start-CCanal 1 TG8

Start 2PX.TF-Start-RF

PR.SCTFBGVPR.SCTFBGH

[20 kHz, 40 MHz]Transfer impedance

[11m, 1 k]0.167 dB steps

Beam235 ns

235 ns

Kicker length = 0.9 m, ZC = 112 deviation (H plane) = 2 rad/(kW on both sides) at

1.4 GeV

100

16 ns

14 ns

SP2T1

2

Start 2PX.TF-Scope-

RF

14 ns

1 ns

50

Pick-upSS02/100

16 ns

Patch Panel

Combiner

0o180o

86.5 ns

57 ns

Start 1PX.TF-Scope-C

Splitter

10 dBAtt.

-9dBCableComp.+cable

Combiner

0.5 ns 0.5 ns

Total 2100.7 nsWith +/- 2.5o error

below 20 MHz

-9dBCableComp.+cable

Total 1340 nsWith +/- 1o error below 20 MHz

At 26 GeVFrev = 476.83 MHz

Trev = 2097 nsStart C20 at C2305Start C40 at C2340

Start Coarse synchro C2155Start Fine Synchro C2367


PS TFBPS TFB 26 GeV MD setup

2100 ns Notch delay+1340 ns 1-turn-delay


PS TFBPS TFB

MTE blow-up at 14 GeV, Oct.2006, A. Franchi, S. Gilardoni, M. Giovannozzi, D. Quatraro

See APC slides 9 March 2007

26 GeV, LHC beam transverse damping, Oct. - Nov. 2006.R. Steerenberg, G. Arduini, E. Benedetto, H .Damereau, A. Grudiev, W. Höfle, E. Métral,M.

Morvillo, C. Rossi, G. Rumolo……. (APC slides 22 September and 15 December 2006)

- Excitation–Damping test. Observation of the first betatron line amplitude: 5.7 ms damping time instead of 21 ms natural decay (100 to 5 %),with C10 cavities

only active.No significant results with C20, C40 or C80 Problem found afterwards: Power resistors (200W CW, 3kW/2ms peak) dead !!

MD’s


PS TFBPS TFB Summary

The transverse feedback system is waiting for its VME electronic core to be completed. For this unit, the time table is under discussion

The system is ready for another set of measurements on the 26 GeV flat-top.The system is ppm => parallel MDs

Documents

A.Blas AB/RF/FB APC meeting 20/4/2007 1 Status of the PS TFB Upgrade launched in July 2005 L. Arnaudon, A. Blas, F. Caspers, D. Glenat, R. Louwerse, V