STILL open points:

1
Hamburg, June 3rd 2004
OPERA Collaboration Meeting
BAM Project Status Report
S. Buontempo (on behalf of BAM working group)

• STILL open points
• lead, ECC Packaging, CS laminated film, skates
• Construction Strategy
• Working groups
• BAM design and construction
• BAM LNGS site preparation
• Schedule

2
Still open point Lead

• Several lead types have been mechanically
  studied at CERN, LNF and TecnoCut sites.

For what BAM is concerned - Pb/Ca remains the
best candidate from mechanical point of view -
Pure lead, Pb/Ag and Pb/Cu are too soft so they
are rejected - Ternary Leads (Pb/Ag/Al and
Pb/Ag/Sn) is slightly better, meaning that piling
and pressure are feasible. To keep planarity
while piling is more critical than with Pb/Ca.
Still to be evaluated the performance at nominal
speed (max acceleration) and the possibility to
recover the loss of planarity with pile
pressure. Very important for final evaluation is
the cleaning and stickiness of Pb
3
Still open point ECC packaging

• Vacuum packaging (standard origami vacuum)
• laminated film new welding hedge  reliable
  vacuum
• Mechanical packaging
• Plastic/glass fiber spring glass fiber scotch
  more robust

Both solutions are theoretically reliable Vacuum
packaging is hermetic but very fragile to
manipulations Mechanical packaging is clearly
more robust. We have proved the light tightness.
Evaluation of the gas tightness was performed in
May at CERN (see C. Sirignano talk for more
details)
4
Still open point ECC packaging
Evaluation of the gas tightness
Tests performed at CERN with ECC packed with
vacuum and mechanical (with and without thin PE)
options. ECC were kept 24h in RPC gas and
H2(10)N2(90) mixture No effect detected (see
C. Sirignano talk for more details)
5
Still open points CS
CS In Nagoya it was decided the CS envelope
shape (with 3 welding lines and folding on
sides vertically and horizontally on top of
ECC) Still to define CS packaging and delivery
boxes - Type of laminated film used for CS
packaging compatible with LNGS safety rules and
relevant for choice of glue to fix it on CSS -
Size of carton paper boxes, - number of CSs in
each box (relevant for fire risk evaluation), CS
labelling - bar codes to read and register in
BAM database ? - where they are ? Important
effects on the emulsion BAM operator job - what
we have to record on the BAM database and on the
brick label? - do we need for CS a different
label from the ECC one ?
We need at least 100 CS samples for BAM (already
asked in Nagoya)
6
Still open points CS CSS
CS CSS handling during OPERA data taking If we
go for the ECC vacuum packaging solution we
propose to use for the CS the SAME laminated film
used for ECC (it will be provided by Europe to
Japan). This will simplify the glue choice the
SAME glue for both sides no NYLON only PPE The
TecnoCut proposed to have a CSS structure done
with 2 pieces mechanically clamped together and
each of them glued to ECC and CS
respectively this will separate the role/choice
of glue (hard, quick drying long term gluing)
from the need to detach the CS from ECC with no
mechanical stress on emulsions inside both
of them. If we go for mechanical solution no
need of CSS, CS will be directly glued on ECC
flat surface
7
Still open points skates
Skates The choice of vacuum/mechanical solution
will affect the need to study or not the skate
final shape and its mass production. In
mechanical case we do not need skates but we will
add a skating tape on the bottom of the brick In
vacuum case the skates will be glues on
brick-to-brick side on the ECC and on ECC side
opposite to CS - if we want to remove the CS
we have not to glue the skate CS side New
skate design proposed by TecnoCut and already
validated by LAPP colleagues We need to start
ordering NOW all the tooling to start skate mass
production by next fall
8
Still open point ECC packaging
9
BAM Construction Strategy

• The BAM project is definitely based on a strong
  synergy in between the OPERA Collaboration and
  the TecnoCut Consortium (this is formally stated
  in BAM specs too)
• The firm will design, assemble and test robotics
  and validate technical performance of the BAM,
  but ALL the performance at emulsion level MUST be
  validated by the OPERA Collaboration
• This refers especially to
• emulsion chemical compatibility with other BAM
  and brick components,
• photographic effects on the emulsion due to
  mechanical manipulation,
• alignment and planarity at micron level

A lot of emulsion processing and analysis in next
months
10
BAM working groups
We have set up two BAM working groups BAM group
composed by BAM-OPERA colleagues TecnoCut-GFT
engineers, which will meet regularly (once a
month up to now) to keep under control the
evolution of the BAM construction phases and the
correct feedback from the OPERA Collaboration
validations BAM-LNGS group composed by BAM
group LNGS technical engineers, which will also
meet regularly (once a month up to now) to keep
under control the preparation of the BAM site in
LNGS and control the compatibility of the BAM
construction, installation and operation with the
LNGS infrastructure, logistic and safety
11
BAM working groups
BAM and BAM-LNGS working groups met 4 times at
LNGS since last February. A 3D AutoCAD file has
been produced which will include the BAM present
design and ALL BAM site infrastructures. Up to
now BAM, civil engineer works, air conditioning
and clean room system have been inserted. In next
month it will be added the electric networking
and the safety systems (fire, smoke and other
sensors) The BAM site has been classified in
terms of safety class (REI30 according to Italian
law) Safety plan for BAM installation and
operation is being defined with LNGS experts.
12
BAM BAM site Design
Hall B
CS and Skate stations
dirty room
Lead boxes input
Clean room
Lead handling stations
Piling stations
Clean Dark room
ECC stations
ECC QC stations
Hall A
Air conditioning and clean room systems
Technical room
13
BAM Design Wrapping ECC
CS and Skate gluing system
Clean Dark room
2 station to rotate lead boxes and pile lead in
groups of 56 sheets
Clean room
Brick tray going to robot filling Drum
Empty box tray
14
BAM Design piling
Clean room
8 Anthropomorphic robot to handle both emulsion
and lead sheets
Clean Dark room
4 Piling stations
Lead pile
Lead/Emulsion pile
Air conditioning and clean room systems
15
BAM Design Wrapping ECC
Anthropomorphic robot to handle pile wrapping
Clean Dark room
Pile wrapping station
ECC vacuum packaging station
ECC QC station
Technical room
3 independent Thermal Units systems to control
Air conditioning and clean class in 3 BAM rooms
16
1st BAM component

• First sample of piling station has been
• delivered to the TecnoCut
• ABB IRB140
• 81cm high for 98 kg weigh
• 6 working axes
• Handling capacity up to 5 kg
• Used in clean room class 10
• Positioning precision 0.03 mm

17
The piling station of the BAM
First mechanical tests of lead and emulsion
manipulation with anthropomorphic ABB robot have
started to check the precision in the piling
operation Further studies are needed on -
vacuum sucking device - photographic effects
18
The belt of piling station dark room test
results
In May 04 light test of pile station belt was
performed in Montech firm (Switzerland) A
lead/emulsion pile 7 emulsion films were
exposed in dark room while the belt running for
10 minutes (factor 5 w.r.t. real exposure of
emulsion and lead/emulsion piles) No effect due
to any light produced during motion was observed
in emulsion (see C. Sirignano talk).
19
The BAM site at LNGS
Preparation of the by-pass site has started in
March 04 Main civil engineer done in May-June
04 Tender for air conditioning system closed in
March 04, to be delivered by Sept 04
Electrical network and safety systems to be
delivered in July 04 Monthly meeting with BAM
and LNGS engineers to monitor the status of the
work in progress.
20
The BAM LNGS site
from Hall B side
May 04
March 04
Blue passages have been lifted, Hall B panels
removed, concrete wall being removed
Future door
21
The BAM LNGS site
from BAM site
First wall door being enlarged (previous slide)
Hall B
Second concrete wall being totally removed
22
The BAM LNGS site
Few tons of concrete to carry out in next week
Floor and edges (all along the Hall) prepared
for resin deposit
23
BAM schedule

• Final specifications December 2002
•  
• End of market search March 2003
• Technical audit April 2003
•  
• Call for tenders May to October 2003
•  
• Firm selection November 2003
•  
• Ordering December-January 2004
•  
• Design, Construction and Tests in the
  firm February 2004 to March 2005
•  
• Delivery at Gran Sasso laboratory April 2005
•  
• Assembly, installation May 2005
• Production acceptance tests at Gran Sasso
  June to August 2005