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Schedule

24-09-09

General Schedule 9th, September 09

Today

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Overview

24-09-09

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Extended transfer line tests..

24-09-09

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Tests with beam

2.5 days with beam Pilot Beam for the most part:

single bunch of 2 - 3 x 109 protons Beam emittance: 1 µm Momentum spread: nominal Nominal tunes, nominal magnetic machine

Total intensity injected: 1 x 1013 protons

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Stopping the beam

24-09-09 Stefano Redaelli

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Beam etc 2008

24-09-09

Duration Intensity # shots Intensity Commentsh p+ p+

1End TI2, Injection Steering, commission BDI, timing

4 5E+09 100 5.0E+11 TDI in, protecting Alice

2Trajectory acquisition commissioning, trajectory correction, threading

6 5E+09 200 1.0E+12 To IR3 collimators

3 Momentum matching (if required) 1 5E+09 50 2.5E+11

RECYCLE & recover 2

4 Kick response 3 5E+09 300 1.5E+12Data used for , coupling, BPM polarity checks, corrector polarity checks

5 Screens 2 5E+09 50 2.5E+11

6 Dispersion 1 5E+09 200 1.0E+12 Pi bumps, BLMs, BCT

7 Check BLM system 5E+09 100 5.0E+11

8 Higher order polarity checks 3 5E+09 150 7.5E+11

9 Injection region aperture 3 5E+09 300 1.5E+12 TDI in, protecting Alice

10 Aperture - first cut 4 5E+09 300 1.5E+12

11 Aperture - sliding bumps where required 6 5E+09 150 7.5E+11

12 Momentum aperture 2 5E+09 100 5.0E+11

13Effects of magnetic cycle, variations during decay, reproducibility

6 5E+09 100 5.0E+11 Reserve

TOTAL 43 2100 9.0E+12 On to TCPDAYS 2 5.0E+11 On to TDI 

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Program revisited – one sector – first cut

24-09-09

Final BIS tests, TEDs out etc. Friday p.m.

Injection region 4 ABT & co

Threading 2 To collimators Jorg & co

Momentum matching check 1 Jorg & co

Kick response 4 corrector /BPM checks K. Fuchsberger & co

Dispersion 8 matching from line OP/ABT

Cycle 2 OP

Injection region studies 6 aperture/kicker waveform Bren, Jan & co

Arc Aperture 4 Stefano & co

Higher order polarity 6 Frank Z & co

Momentum aperture 2 trim lines? OP

Cycle 2 OP

Spectrometer 4 Mike & co

Injection protection set-up 4 ABT & co

Loss response at collimators 4

Screens 2 plus shot-to-shot stability VK,

[Multibunch] 2

57 hours

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Other

24-09-09

BLMs Parasitic & collimators

Ralph Steinhagen BBQ etc.

R2E

Alice

Quenches ?

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Preparation – on the list

24-09-09

[Dry] Run line, injection, and LHC together

OP checks of S23 and/or S78 etc following PGC, cycles etc.

Spectrometer tests

Vacuum valves and interlock tests

Lock Collimators

DSO, EIS etc.

Beam Interlock SystemFinal configurationPIC 2 BIC configurationSMP

Interface to Vacuum, PIC, WIC +…Beam Permit loops in place Activate only required User inputs: 5 BICs (L2, R2, UJ33, SR3 & CCR) are involved Other BICs not implicated in the Beam Permit => User Permits inputs disabled

Beam dump Arm – to BIS, energy tracking

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Pre-flight checks

24-09-09

Injection septa, kickers Pulse elements, soft start tests

RF synchro – pre-pulses Extraction/Injection tests

RF re-phasing

Timing System Injection requests

Collimators Controls tests plus Hardware interlocks

Vacuum Interlock tests, valves out

TDI & TCDD IST, Controls tests

BLMs Acquisition, PIC, thresholds

BPMs “BeamThreading” - test

BPM – sum signal Q8.R2, Q8.L3

BTVs Tests, calibration etc.

BCT Test

RADMON Controls tests

RAMSES Check

Optics, aperture & knobs

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Pre-flight checks

24-09-09

Logging

Alarms

LSA/Settings etc full pre-cycle, polarity checks, settings checks, FIDEL

YASP

Controls Infrastructure

Magnet model full decay etc

Optics/Aperture

On-line model knobs etc

Sequencer

Software Interlocks Injection permits etc,

PGC & settings on the sector

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RP actions after the Sector Test

Delayed access to the LHC due to air activation (~1/2 hour)

The LHC areas affected by the Sectors Test will remain closed until RP has performed a radiation survey in the areas.

The LHC area to be surveyed is ranging from R22 up to the area downstream last beam impact point in Point 3 (direction Point 4).

Point 3 will remain closed with radiation veto. Due to the risk of elevated dose rates the survey in Point 3 will not be done before access to this area is required.

The whole RP survey will last approximately 1 day.

Survey will start downstream Point 3 into direction of Point 4, followed by a survey of the ALICE experimental cavern. Radiation vetos will be lifted as soon as surveys are finished.

24-09-09

Doris Forkel-Wirth, Helmut Vincke

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Forecast of area classifications after the test All areas which have seen beam or secondary particles originating from any

beam impact will be classified at least as Supervised Radiation Areas. These areas will range from R22 over ALICE to the area located

downstream Point 3 (direction Point4). Personnel accessing Supervised Radiation Areas have to be equipped with

a personal dosimeter. Areas around the Point 3 collimators will be classified as Controlled

Radiation Areas: Area will not be freely accessible (access doors closed by radiation veto) Personal and operational dosimeter will be required Job and dose planning is required for access

Area around the TDI absorber will most probably remain accessible with personal dosimeter only. The final classification will however depend on the intensity shot on the TDI absorber.

24-09-09

Material leaving classified areas: All material leaving radiation areas needs to be classified and/or controlled by RP

Doris Forkel-Wirth, Helmut Vincke

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Support

24-09-09

PO  Dave CERN piquet ++

Access Ghislain On-call support TS/ASE

SPS Expert OP coverage OP

RP Helmut Vincke, Doris Forkel-Wirth

HV will be available ( CCC, and full time available by phone. Our technician in charge (or the piquet) will be certainly available via phone full time

MPP Andre, Rob, Nuria On-call support in case of problems. Will particpate.

RF Andy We know where you live

BI Rhodri, Lars, Bernd  + on-call support

ATB   Beam stopper - check

BT  Bren, Etienne, Volker…. On-call support in case of problems. Will particpate.

CRYO   On-call support in case of problems

HWC Roberto, Rudiger Will participate.

QPS   On-call support in case of problems.

CO   Eugenia organising full coverage: LSA, timing, FEs etc.

BIS Bruno Will participate

Vacuum   Need on-call support in case of problems.