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BMS activities and brick maniupulation

• Short summary of 2008 activities and results

• Extraction and filling activities foreseen in 2009

• Black CS extraction strategy

D.DuchesneauLAPP, Annecy

OPERA general meetingMizunami January 20th , 2009

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Brick manipulation activities in 2008

End of initial loading on July 14th 2008 with 146420 bricks in the detector

The main achievements in 2008:

now

January 2007: start filling target

July 2008 : end of filling target

The BMS(Brick Manipulator System)

one robot on each side of the

detector

144910 bricks today 1.26 kton

6 m

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Brick manipulation activities in 2008The main achievements in 2008:

Brick Handling management via BMM tools extensively used successfully

From July 1st to Dec. 31st: 1479 bricks extracted following the brick finding requests

BMS extraction commissioned and running in production mode

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Brick manipulation activities in 2008

Brick Handling management via BMM tools

CS X-ray underground

Cosmic exposure on surface

Shielded area in Hall B

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Brick Extraction status in 2008:Week 27 -31: July 2nd – July 31st CNGS events: 154 bricksWeek 31-35: August 1st – August 31st CNGS events: 132 bricksWeek 36-40: Sept. 1st – Sept. 30th CNGS events: 267 bricksWeek 41-44: Oct. 1st – Oct. 31st CNGS events: 417 bricksWeek 45-48: Nov. 1st – Nov. 30th CNGS events: 414 bricksWeek 49-50: Dec. 1st – Dec. 14th CNGS events: 109 bricks

. A number of 25 extraction/day is achievable in a regular way => it includes some recovery time for standard errors

Total: 1493 bricks extracted for about 1700 events

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BMS Machines: extraction and related problems

For the 1493 extraction requests already treated, 3 really failed

Extraction efficiency is then: 99.80 ± 0.12 %

• 3 rows with candidate bricks inside are blocked. and are not yet recovered and no hope to easily recover them

The target as of yesterday

Those achievements were not done without pain:BMS Extraction suffers from bad skates + glue + lost/destroyed CS coverUnexpected and damaging LNGS power cuts on BMS systems and hardware + loss of BMM DB…Hardware failures: motors, servo-control, vehicle, crashes due to external factors

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Some numbers about brick handling activities

•The Brick X ray rate is identical to the CS scan result availability•The ‘Sent to development’ is very close to the rate of cosmic pit delivery.

Annual periodic effect

BMS profibus network RS problem and VV tires

BMS vehicle accident RSup to Dec. 15th

BMS maintenance and RS VV mistuned

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It was needed to add 4 additional shelves in Shielded area since the beginning:Storage capacity: 1000 bricks

up to Dec. 15th

# places on shelves

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Work and planning organisation for the brick manipulation activities of 2009.

Extraction of the remaining CNGS brick candidate (1st and 2nd choice) about 625 in 2009

Extraction of 17000 bricks for CS doublet sheet replacement

Replacement of 17000 CS doublet sheets

Insertion of 17000 bricks with new CS doublet

Insertion of 4000 bricks from last BAM production

Re-insertion of about 650 bricks from CNGS back to the detector

Brick Handling of CNGS brick events

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Schedule:• There will never be mix of extraction of CNGS candidate with CS doublet exchange during shifts and even days; • For similar reasons, we will not mix insertion and extraction for CSdoublet exchange during shifts and even days: separate days will be assigned to both activities.• The extraction of candidate bricks can be envisaged on dedicated day/week only (possibly Monday during the 2 shifts only if drums are correctly handled). They will get highest priority during these activities. •We start CS exchange beginning of February for 12 weeks with some periods devoted to extraction of 2nd brick (but absolutely not mixed as mentioned above).

•We fill the 4000 new bricks not later than 2 weeks before the start of CNGS using the 2 shift mode even if CS doublet exchange is not finished. They may also be inserted during insertion slots proposed in the following schedule.

Brick manipulation activities in 2009

‘theoretical’ upper limit achievable for the BMS if there is no major hardware failure during 2 shifts/day:

BMS Insertion max. rate: 4500 bricks/week 4 drums/dayBMS Extraction max. rate: 2/3 of insert rate = 3000 bricks/week

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Week # in 2009 CNGS extract candidate bricks

Extract for CS treatment

Brick insertion Bricks on palette end of week (*)

Trays to clean during weekend

3 (Jan 12th -16th) 70

4 (Jan 19th -23th) 50 58

5 (Jan 16th -30th) 60 1400 on Corridor

6 (Feb 2nd -6th) cancelled 2400 (4days) 0 2400 90

7 (Feb 9th -13th) 40 (1day) 2400 (4days) 0 4800 90

8 (Feb 16th -20th) 0 1200 (2days) 2700 (3days) 3300 45

9 (Feb 23rd -27th) 0 1800 (3days) 1800 (2days) 3300 70

10 (Mar 2nd -6th) 40 (1day) 2400 (4days) 0 5700 90

11 (Mar 9th -13th) 0 1800 (3days) 1800 (2days) 5700 70

12 (Mar 16th -20th) 0 0 4500 1200 75 (1/2 prod)

13 (Mar23rd-27th) 40 (1day) 2400 0 3600 90

14 (Ma30th-Apr3rd) 40 (1day) 2400 0 6000 90

15 (Apr 6th-10th) 0 1200 (2days) 2700 (3 days) 4500 45

16 (Apr13th-17th) 40 (1day) 0 3600 900 25 (end prod)

17 (Apr20th-24th) 40 (1day) 0 2200 (BAM prod RS) 0

18 (Apr27th-30th) cancelled ???)

40 (1day) 1300 Rock side 0

Total 460 18000 22000 838

(*) in addition to the 4000 bricks sitting in Hall B which are produced by the BAM.

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detector

4.1m 6.8m 2.7mdoor 2.7m door 2.7m

19 m

drum 1.5m

drum 1.5m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1mtable table

pall 1m

pall 1m

fence

fenc

e2

m5

m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

pall 1m

passage for pedestrians (>1.2m)

about on scale

rock of corridor side

crane 5 ton crane 25 ton

CS replacements layout (taken from Mario’s proposal)

All the work of manipulation will be done in Hall C

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Black CS extraction strategy:2 groups have to be extracted: The first 13000 bricks produced by the BAM for which there was no hole in the

CS envelop: they will be easy to find as they were the first 13000 bricks loaded in the detector (Brick Id < 14400)

There are additional 4000 bricks for which there was a hole but stored during long time under vacuum. Those brick positions are not so sharply defined as in the first category. People interested should provide the Brick Ids to the BMS people asap.

Extract the first group: concentrated mainly in SM1 bottom rows.

The BMS will treat always complete rows of 26 bricks

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To be careful: some rows contain good bricks or bricks which should not be treated: (0.3% candidate bricks and 0.6% not high fog bricks) : both types will be reinserted in the detector

However the priority will be given according to the rows where there is a maximum of CS to replace.

We will use a BMM tool interface to the DB to do the bookkeeping of the extracted bricks (mandatory, about 10% of the target will come out)

Activities foreseen on the working tables in Hall C: removal and replacement of the CS enveloppethe activity of replacing the sliding skates the perfect fixation of the CS cover to avoid the disastrous crashes we have presently on certain rows. the control of the brick shape and size in the special tunnel tool

Black CS extraction strategy:

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The END