CDF Silicon Workshop 200612

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New BLM & New BLM & BLM BLM

electronicselectronicsJose E. Garcia, Jennifer Gimmell,

Ulrich Husemann

OutlineOutline

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 22

New BLM SystemNew BLM System• Motivation Motivation (why do we need an upgrade)

• Characteristics Characteristics (electronics, …) • Current StatusCurrent Status

• Installation plans Installation plans Commissioning Plans Commissioning Plans (software, firmware, ACNET interface)

SummarySummary

MotivationMotivation

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 33

• Tevatron project to improve ABORT system

Prevent against this

Long reaction time

MotivationMotivation

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 44

► CDF BLM Upgrade

Add more information to the old system which is working reliably

Use same well-understood type of detectors with enhanced capabilities (new electronics)

Maybe an intermediate step towards a diamond-based beam abort system

► Goals:

Shutdown: install new BLMs and all cablesinstall new BLMs and all cables

After shutdown: commissioning commissioning

System OverviewSystem Overview

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 55

• Integrate BLM current and digitize at Tevatron turn frequency (every Integrate BLM current and digitize at Tevatron turn frequency (every 21 21 s)s)

• Form three running sums for additional integration periodsForm three running sums for additional integration periods

Programmable time constantsProgrammable time constants

• One abort threshold per integration period of each channelOne abort threshold per integration period of each channel

• Possibility to change abort thresholds and masks in response to Possibility to change abort thresholds and masks in response to machine statusmachine status

Read-out using VME system and EthernetRead-out using VME system and Ethernet

VME CPU can be used for system computationsVME CPU can be used for system computations

System CharacteristicsSystem Characteristics

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 66

High Voltage Power Supply

BLM

VM

E /

AC

NE

T

Controller Card

Interface to VME crate

Timing Card

Synchronous integration clock digitizers

Abort Card

FPGA info from digitizers compared with abort masks and produce abort signals

Digitizer Card

4 Channels with integrator and ADC

FPGACompares readings and sums to programmed thresholds - i.e. 1ms, 10ms, 1s

BLM Electronics

BLM

BLM

BLM

Current StatusCurrent Status

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 77

• Picked up 5 new BLMs from Marv Olson of AD Instrumentation Department (4 to be installed, 1 spare)

• BLMs are tested by AD, gain: 10 C/Gy

• Old fixtures removed from collision hall

• New fixtures finished in April 2006: add-on to old fixtures

• Cables ready for the installation

BLM

BLMs

Installation PlansInstallation Plans

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 88

• Sharing crate with diamonds (first-floor counting room 1RR04D)

Richard Tesarek

Shutdown project

New Modules already requested

Installation of new BLM SystemInstallation of new BLM System BLMs and cables set-upBLMs and cables set-up

Commissioning PlansCommissioning Plans

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 99

• Initial phase of testing correct read-out – immediately after installation

• Check that the dose rate and integrated dose agree for old and new system.

• Set up the abort logic of the new system such that the limit is reached during a regular store. Check if the radiation levels for an abort agree – immediately after accelerator start-up

• Run the system with same limits and for an abort. Check if both systems have fired and compare their FIFO contents.

• Keep new BLM as back-up system up to reliability is completely proved – depending on how much chances do we have to test it

Before CommissioningBefore Commissioning

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 1010

ACNET Controls for BLMs

• Adapt actual settings in ACNET (E2 page) for new BLMs (next week)• Use similar set-up:

• Global reset• Current rate and integrated dose• FIFO controls

• Paul Derwent will help us in the integrationUse New Java Front-End

• Establish a integration of radiation (1 minute, full store) out of the built-in rolling sums

Some infrastructure is needed :

• Development of mechanisms for abort acknowledgment - equivalent to current Kludge card.

SummarySummary

J.E.Garcia – CDF Silicon Workshop – Santa BarbaraJ.E.Garcia – CDF Silicon Workshop – Santa Barbara 1111

We will have our slot in the following weeksWe will have our slot in the following weeks Material and BLMs are ready for installationMaterial and BLMs are ready for installation

CommissioningCommissioning Read-out system: VME modules and ACNET Read-out system: VME modules and ACNET controls will be set-up during next weekcontrols will be set-up during next week Prepare system for radiation level tests at the beam Prepare system for radiation level tests at the beam startupstartup New system working as backup for a test periodNew system working as backup for a test period

Unfortunately, I was not able to join you there. Finally after some troubles I have my visa.

Enjoy the weekend!!!Enjoy the weekend!!!

CDF Silicon Workshop 200612

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Additional Additional SlidesSlides