beam line bpm upgrade

Beam Line BPM UpgradeBeam Line BPM Upgrade

Nathan Eddy & Elvin Harms21 April 2005

BPM Upgrade 2

Beam Line BPM UpgradeBeam Line BPM Upgrade

Introduction/Motivation History Technical Overview Status Software Implementation Steps Acknowledgements Summary

BPM Upgrade 3

Beam Line BPM Upgrade - IntroductionBeam Line BPM Upgrade - Introduction

Part of the ‘Rapid Transfers’ Run II Upgrade Project Beam Line Regulation Software Oscillation Feedback & Control

Diagnostics Commissioning

Ultimate goal Accumulator to Recycler transfers every ~30

minutes and completed in 1 or 2 minutes

BPM Upgrade 4

Beam Line BPM Upgrade - MotivationBeam Line BPM Upgrade - Motivation

1.3.6.5.1 Beam line BPM upgrade BPM current use

• Reverse protons– Minimum 30 uniform 53 MHz bunches– A few E11 intensity– Beam conditions purposely varied during shot set up to

minimize necessary intensity currently no pbar beam line BPM data

• Reverse proton data sufficient for good pbar transmission• Electronics limitations

– Low intensity– bunch structure

• Outdated DAQ• Difficult to integrate with existing software

Rapid Transfers - no routine reverse proton tuneup for rapid transfers

• Use pbars to monitor beam line performance• Use data to feedback to beam lines tune

BPM Upgrade 5

Beam Line BPM Upgrade - MotivationBeam Line BPM Upgrade - Motivation

Scope of work P1, P2, AP1, AP3, A1 Use existing BPM

pickups (53 MHz) Upgrade electronics

to support all expected beam modes

Modernize DAQ Develop

applications software to meet beam monitoring and tuning needs

AP3 Line8.9 GeV/c

AP1 Line8.9 GeV/c120 GeV/c

P2 Line8.9 GeV/c120 GeV/c

P1 Line8.9 GeV/c120 GeV/c

BPM Upgrade 6

Beam Line BPM Upgrade - HistoryBeam Line BPM Upgrade - History

Identified as part of Run II Upgrades/Rapid Transfers Preliminary meeting, Requirements – 8/11/03 No resources allocated/available Inventory of existing systems – March 2004 Manpower identified – May 2004 Requirements document v 1.0 released – May 2004 Requirements Review – June 2004 Re-reviewed/notice to proceed with design - July 2004 Rack at F23 – September 2004 Installation Schedule developed – October 2004 Project review – October 2004 Crate running at F23 – February 2005 First Pbar beam signals – March 2005 Expected close out – summer 2005

BPM Upgrade 7

Beam Line BPM Upgrade – RequirementsBeam Line BPM Upgrade – Requirements

Mode Energy

(GeV)

Particle

Bunch structure Intensity Read frequenc

y

Reverse protons

8 protons 53 MHzup to 84 bunches

1011 .1 Hz or less

Pbars to MI/RR/

Tevatron

8 pbars 4 bunches of 2.5 MHz superimposed on 53

MHz

1010 – 1011 .1 Hz or less

Stacking 120 Protons 53 MHzup to 84 bunches

1013 ~.5 Hz

SY120 120 Protons slow spill 53 MHz 1011 .5 – 1 sec spill

Collider protons

150 Protons single coalesced bunch

1012

P1 line

Beams Document 1279-v3.3

BPM Upgrade 8


Mode Energy

(GeV)

Particle


y

Reverse protons


1011 .1 Hz or less

Pbars to MI/RR/

Tevatron


MHz

1010 – 1011 .1 Hz or less

Stacking 120 protons 53 MHzup to 84 bunches

1013 ~.5 Hz

SY120 P2120 protons – slow spill

53 MHz 1011 .5 – 1 sec spill

P2 line


BPM Upgrade 9


Mode Energy

(GeV)

Particle


y

Reverse protons


1011 .1Hz or less

Pbars to MI/RR/

Tevatron


MHz

1010 – 1011 .1 Hz or less

Stacking 120 protons 53 MHzup to 84 bunches

1013 ~.5 Hz

AP1 line


BPM Upgrade 10


Mode Energy

(GeV)

Particle


y

Reverse protons


1011 .1Hz or less

Pbars to MI/RR/

Tevatron


MHz

1010 – 1011 .1 Hz or less

AP3 line


BPM Upgrade 11


Mode Energy

(GeV)

Particle


y

Collider tuneup – protons

from Tevatron to

MI

150 protons(from

Tevatron to MI)

53 MHZup to 84 bunchessingle coalesced

bunch

1010 - 1011

Pbars from MI to

Tevatron

150 pbars 2.5 MHzup to 4 bunches

1010 – 1011 .5 Hz?

A1 line


BPM Upgrade 12



BPM Upgrade 13

Beamline BPM Upgrade – Technical OverviewBeamline BPM Upgrade – Technical Overview

Use BPM pickups already in place (4 styles) MI8, Main Ring, Accumulator, Debuncher

Use cables currently installed (RG8/RG213) Examined whether pre-amps needed

Use Echotek digital receiver to digitize and process analog signals Use / for position, || for intensity Used in Recycler, NUMI, & Tevatron

System design draws heavily upon Recycler, NUMI, and Tevatron systems System Design based upon NUMI model Front-end software from Recycler/NUMI Same VME crate, Echotek & Clock boards used in

Tevatron

BPM Upgrade 14

Analog FilterGain/Att

PickupIn Tunnel

Cables (RG8/RG213) to Service Building

EchotekDigitize &

Downconvert

PPC ControllerCalculate

Position & Intensity

VME

Front Panel

Cables

ACNET

Analog FilterGain/Att

Clock Trigger

A,B

A

B

RackIn ServiceBuilding

VMECrate

Ethernet

Beamline BPM Upgrade – System OverviewBeamline BPM Upgrade – System Overview

BPM Upgrade 15

PP

C C

on

troller

CD

Clo

ck Bo

ard

Ech

otek

Ech

otek

Ech

otek

Trig

ger F

ano

ut

IP M

od

ules

VME Backplane

PPC Controller – handles front end software, readout, and communication

CD Clock Board – provides each Echotek board with clock input (74MHz)

Echotek – digitizes & downconverts the 8 analog inputs (4 bpms)

Trigger Fanout – generates trigger input for each Echotek from BeamSync

IP Modules – modules to decode TCLK, generate triggers, calibration I/O

An

alog

Filter

An

alog

Filter

An

alog

Filter

Analog Filter – filters, attenuates, & amplifies analog signal as needed

Ethernet

Test/C

trl Mo

du

le

Test/Ctrl Module – handles setup of filter modules including test pulses

BPM Cables from Tunnel

Digital PS

Linear PS

Separate crate for Analog Modules – linear PS & existing control software

Beamline BPM Upgrade – Electronics OverviewBeamline BPM Upgrade – Electronics Overview

BPM Upgrade 16

Beamline BPM Upgrade – Analog Filter ModuleBeamline BPM Upgrade – Analog Filter Module 53MHz Bunched Beam

1-4 large intensity bunches (TeV)

7-84 consecutive bunches (rev P, Stacking)

2.5MHz Bunched Beam 4 bunches Accumulator to

Main Injector Test Feature (Electronics)

Inject 2.5MHz or 53MHz test signal

A=B, A<B, A>B Proto Type 2 layer board

Done by EE support Checkout since mid Feb

Production Boards Expect 5 next week Full Quantity (46) available

in June

BPM Upgrade 17

Beamline BPM Upgrade – Test ApplicationBeamline BPM Upgrade – Test Application

BPM Upgrade 18

Beamline BPM Upgrade – Initial TestingBeamline BPM Upgrade – Initial Testing

Teststand on 2nd floor Transfer Gallery for initial testing Full VME system – ppc, echotek, trigger modules, clock

prototype and AWG for signal input Using Prototype Analog Module Using R25 diagnostic application Used to evaluate system performance and digital filter

testing

2.5MHz Pbars

0

50

100

150

200

250

300

5 10 50 100

Bunch Intensity (e9)

Po

siti

on

Res

olu

tio

n (

um

)

Expected Resolution

BPM Upgrade 19

Beamline BPM Upgrade – Initial InstallationBeamline BPM Upgrade – Initial Installation

New rack installed at F23 Split pickup signals to both old and new system Use for beam commissioning in parallel with old system Initial installation rack – full infrastructure currently

installed (minus required number of filter modules) Used to evaluate Filter Module prototype

Fast Time PlotData Logger

BPM Upgrade 20

Beamline BPM Upgrade – Application SoftwareBeamline BPM Upgrade – Application Software

BPM Plots/List (I39, P54, T39) Configuration & control of beamline bpms, make

measurements and archive data APx Lattice (P143)

Perform orbit measurements and compare with archived data, apply orbit corrections

Reverse Proton Tuneup (P150) Similar to P143 for reverse protons

Pbar Differential Orbit Measurement (P163) Gathers orbit data while adjusting trims & measuring

lattice parameters Shot Data Acquistion (SDA) Expect existing applications to continue to see protons

with minimal changes More extensive modifications or new applications will be

needed to monitor anti-protons

BPM Upgrade 21

Beamline BPM Upgrade – Installation PlanBeamline BPM Upgrade – Installation Plan

Complete System Installation at F23 (AP1) Infrastructure in place

• Rack, crates, power supplys, cables, etc• VME electronics complete and operational

Front-end software complete and being used for testing Expect to have 2-3 Filter Modules installed in mid May Complete installation in early June (10 Filter Modules)

Remaining Locations AP3 – AP30, F27, P1 – MI60S, P2 – F2, A1 – MI60N Setup and perform initial checkout on 2nd floor Remove old system and install new 1 rack at a time User software must handle mix of old & new for protons Plan to begin mid June, complete in July

BPM Upgrade 22

Beam Line BPM Upgrade - AcknowledgementsBeam Line BPM Upgrade - Acknowledgements

Hardware John Van Bogaert, Bob Dysert, Claudio Rivetta

(SLAC), Craig McClure, Glen Johnson, Bakul Banerjee, Bob Forster, Bill Haynes, Vince Pavlicek

Software Duane Voy, Charlie Briegel, Bob West, Brian

Hendricks, Lin Winterowd

Review process Steve Werkema, Ioanis Kourbanis, Valeri Lebedev

Oversight, Consulting, etc. Nathan Eddy, Bob Webber, Peter Prieto, Amber

Larson, Elvin Harms

BPM Upgrade 23

Beam Line BPM Upgrade - SummaryBeam Line BPM Upgrade - Summary

An upgrade to the P1, P2, AP3, AP3, A1 BPM systems has been identified as necessary and is included as part of Run II Upgrades/Frequent Transfers project

Upgrade design draws on recent BPM upgrade experience (Tevatron, Recycler, NuMI)

Unique design for both 2.5 and 53 MHz operation

Design is largely complete; testing with beam is in progress at F23

Anticipated completion this summer MI upgrade will build on this experience

BPM Upgrade 24

Arm & Trigger EventsArm & Trigger Events

Transfer Lines TCLK MIBS Delay

Prot MI to TeV P1 $4D $7C 2.7 sec

Pbar MI to TeV A1 $40 $7B 6.7 sec

Prot TeV to MI A1 $5D $D8 6.7 sec

Prot MI to Target P1,P2,AP1 $80 $79 1 sec

Prot MI to Acc P1,P2,AP1,AP3 $93 $7E 2.5 sec

Pbar Acc to MI AP3,AP1,P2,P1 $91 $7A 22.6 sec

BPM Upgrade 25

53MHz Beam Signal Parameters53MHz Beam Signal Parameters

ModeBunch Intensity

(e9)Cable Length (ft) Range (dB)

1 Proton Bunch to TeV 250 - 400 171 - 621 10.5

4 Pbar Bunches to TeV 10 - 170 142 - 651 31.8

Stacking Protons (84) 40 - 130 120 - 621 17.3

Reverse Protons (7-35) 3 - 15 120 - 651 21.5

2.5MHz Pbars (4) 5-100 120 - 651 33.5

Max Echotek input 1.1Vpp Measurement range requirements +/-15mm Yields 900mVpp maximum at 0mm (A=B) Choose to use 700mVpp to give some headroom

BPM Upgrade 26

Filter Module TestingFilter Module Testing

1st Prototype from EE Support in February Miscommunication on how to evaluate two solid state

switch candidates Minimized usefulness of board (2 weeks)

2nd Prototype from EE Support Discovered issue with output op amp unable to supply

enough current over entire signal range (1 week) Began “Real Beam” testing at F23 (3 weeks)

• Found that gain/attenuation settings needed adjustment• Found large position variations – SW120 & temperature

Decided to make Prototype run of full board (2 weeks)

Total 2 months over estimated time to produce production boards

BPM Upgrade 27

Beamline BPM LogisticsBeamline BPM Logistics

MI 60 South, P1 BPMs 15 BPMs -> 4 Echoteks, 8 Analog Modules

MI 60 North, A1 BPMs 16 BPMs -> 4 Echoteks, 8 Analog Modules

F1 Service, P2 BPMs 9 BPMs -> 3 Echoteks, 5 Analog Modules

F23 Service, AP1 & AP3 BPMs (now 2 racks) 19 BPMs -> 5 Echoteks, 10 Analog Modules

F27 Service, AP3 BPMs 10 BPMs -> 3 Echoteks, 5 Analog Modules

AP30 Service, AP3 BPMs (now 2 racks) 19 BPMs -> 5 Echoteks, 10 Analog Modules

Totals for 6 racks 88 BPMs 24 Echoteks (8 ch) & 46 Analog Modules (4 ch) Max of 5 echoteks & 10 Analog Modules per rack

beam line bpm upgrade

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