XPOC XPOC external post-operational checks for the LHC beam dump - - PowerPoint PPT Presentation

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XPOC XPOC external post-operational checks for the LHC beam dump for the LHC beam dump LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 1 XPOC: Goal C G l Verify that the dump was correctly V if th t th d tl executed Launch

SLIDE 1

XPOC XPOC

external post-operational checks for the LHC beam dump for the LHC beam dump

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 1

SLIDE 2

C G l XPOC: Goal

V if th t th d tl

Verify that the dump was correctly

executed

L h t ti ll ft h d

Launch automatically after each dump Acquisition of equipment/ measurement devices Analysis of dump action and check against refs Analysis of dump action and check against refs Interface with LHC sequencer Interface with Beam Interlock System Interface with Beam Interlock System

Storage and retrieval on an “event” basis

f acquired data
f acquired data

Generate alarms

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 2

SLIDE 3

C l b d d XPOC: Faults to be detected

Asynchronous dump
Asynchronous dump
MKD pre-trigger
Missing MKD
MKD tracking error
MKB tracking error
MKB tracking error
Missing MKB (dilution failure)
Missing MKD redundant branch
MKD re-triggering not working correctly
MSD energy tracking error
MSD energy tracking error
Beam emittance too large
Orbit in IR6 out of tolerance
Direct BLM triggered
IR6 access loop broken
IR6 access loop broken
MSD power convertor trip
Over-populated abort gap
TDE over-temperature
TDE over/ under pressure
TDE over/ under pressure
TCDQ-beam position out of tolerance
MKB/ D internal diagnostic not working
Beam instrumentation not working correctly
BETS not working correctly

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 3

BETS not working correctly

SLIDE 4

C l h XPOC: Functional architecture

LINE BPM ACQUISITION LINE BPMs

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 4

SLIDE 5

C d d XPOC: Devices providing data

MKD/ MKB : Measured MKD/ MKB current waveforms IPOC
MKD/ MKB : Measured MKD/ MKB current waveforms, IPOC

summary, status

MSD : Measured currents, FMCM status
BETS : Measured/ reference currents, voltages, etc
BLM : Losses before/ during extraction (± 100 turns)
BPM : Bunch positions before/ during extraction (± 100 turns)
BCT : Circulating/ extracted intensity (± 100 turns)
BTVs : BTV images, projection and status
TCDS/ Q/ TCS : TCDQ up/ down set/ meas positions & status

/ Q/ Q p/ / p

Abort gap m onitor: Measured abort gap population

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 5

SLIDE 6

C l XPOC: Operational requirement

Split into distinct functionalities:

acquisition and storage

automatic process running in a server connected to

the timing system

analysis analysis

automatic process running in a server connected to

the timing system g y

retrieval/ viewing

GUIs to view results and to browse through archived

dumps

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 6

SLIDE 7

C XPOC: present status

Acquisition and storage

Acquiring real data from MKDs, MKBs and writing to

SDDS storage SDDS storage

Working on acquisition chains for other devices Updating logging data base requirements

Analysis

Prototypes for BTVDD tested on dummy data Prototype for MKD used on real data About to start working on MKB module

“E t b ” GUI

“Event browser” GUI

Some components exist (BTVDD display, MKD history…

)

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 7

SLIDE 8

C l XPOC: test & results

BTVDD analyses

Width [ mm] Height [ mm] Length [ mm] Center [ mm] Start of trace [ mm] trace [ mm] Initial 352 318 899

17 Measures 352 319 1001

16 Error [ % ] 0 3 11 0 2

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 8

Error [ % ] 0.3 11 0.2

SLIDE 9

C l XPOC: test & results

MKD

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 9

SLIDE 10

C l XPOC: test & results

MKD Comparison

LBDS Audit, 28/ 01/ 2008 Gallet Eric, AB/ BT 10