Title: Justin Greenhalgh - RAL
1CMS ECAL Endcaps Effort requirements in
Engineering Department and Instrumentation
Department (collectively, TD)
2Summary
- Overview of EE
- Scope of project in TD
- Team members
- Project status
- List of tasks to completion in outline
- List of tasks in detail
- Effort required PPESP request, mid-term review,
current plan - Effort for each task, by year, and by team member
- Summary comments
3The CMS calorimeter
BARREL
The 53 degree crack
LOCATION OF HE
Preshower
ENDCAP
4HE
EE
SE
5Exploded view and parts
6Picture of original electronics arrangement
7Supercrystal parts
Arrangement of a few Super Crystal Parts
8SC - Concept
Super Crystal with Positional Spacer
9 TD Project scope - included
- Supercrystals
- Manufacture of 50 of full supercrystals
(alveolars and crystals supplied by others) - Handover of parts and expertise to others for the
other 50 - Major mechanics
- Design of backplate, ring flange, positional
spacers, environmental shield, moderators, other
internal components - Procurement and supply of above
- Electronics
- Participation in ECAL joint VFE design
- Customisation to suit EE. Design supply
housings, cooling, etc. - Project co-ordination
- Many interfaces to other work areas including
assembly installation - Ensure ECAL is aware of what needs to be done
outside our scope
10TD project scope - excluded
- Supercrystals
- Supply of crystals (ETH) alveolars (Russia)
VPTs (PPD) - Electronic test eqpt for regional centre (PPD)
- Partial supercrystals (Russia)
- Major mechanics
- Some support with design and analysis from Russia
- Dee assembly (IC/CERN)
- Electronics
- Support with completion of HV design from PPD
- VFE cards (ECAL)
- Other areas
- Slow controls (ECAL) services outside EE (ECAL)
- Installation (ECAL)
- Radiation testing and TIS clearance (PPD)
11Team members in TD
- Justin Greenhalgh
- Management of TD resources and activities in
other areas - Thermal and structural performance oversight
- Brian Smith
- Supercrystals
- John Hill
- Major mechanics, mechanical integration issues
- Tony Lodge
- Electronics
- Others - Design and technician support
12Project status - overview
- Supercrystals
- Design OK, parts mostly on order, gearing up for
production in summer 2003 but subject to
confirmation of external funding - Major mechanics
- Design passed review, production drawings in
hand, due to carry out tender action
spring/summer 2003 - Electronics
- CMS critical path item
- EE working as part of ECAL effort to make a joint
design for the VFE mechatronics - tests hoped in test beam summer 2003, production
electronics required March 2005
13Project status - supercrystals
- Successful review November 2000
- Mechanical components tendered, companies
shortlisted, contract to be placed before end
2002 - Production facility about 50 kitted out
- Production due to start summer 2003
- BUT
- crystals still not ordered,
- HV cards design still not fixed,
- other details to finalise
14Project status - major mechanics
- EDR succesful in Sept 2002
- Production drawings being made
- Ring flange almost complete
- Backplate in hand
- Pos spacers next
- Agreed to freeze backplate and ring flange and
treat those as design constraints for the
mechatronics
15Project status - Electronics
- Strategy is to work with the ECAL community to
ensure that the agreed design is EE-compatible - Two promising potential designs for housing the
electronics - Fundamental principle is that it must be possible
to install and test the cooling before the
electronics is fitted - After many delays on the FPPA chip design, a
second, more promising, design is now being
pursued in parallel (using 0.25 micron
technology) - TD staff member Tony Lodge is now working about
50 at CERN, the arrangements being under
continuous review - CERN mechanical designer is due to start work on
EE-specific design issues
16Outline list of tasks from now to completion in TD
- procure mechanical parts for supercrystals,
- produce about 300 supercrystals, transfer
expertise to other regional centres - complete design of major mechanical items,
procure them - participate in completion of ECAL mechatronics
design - (level of input negotiable)
- complete EE-specific mechatronics design
- (level of input depends upon how applicable the
ECAL design is to EE) - See Project Specification paper - latest version
was superseded by developments in the
mechatronics area.
17Tasks from now to completion - supercrystals
- Oversee production of SC mechanics
- Complete preparation of regional centre at RAL
- Resolve remaining details temperature sensors,
support bracket for fibres. - Resolve HV card and umbilical design, procure.
18Tasks from now to completion - major mechanics
- Completion of production drawings for backplate,
ring flange, positional spacers, moderators - Oversee completion of drawings for environmental
shield by Russian colleagues - Tender action - documents, company visits, etc
- Oversee manufacture
- Interface with assembly and installation teams
19Tasks from now to completion - mechatronics
- Work with ECAL to arrive at a mechatronics design
which can be applied (perhaps in two variants) to
the barrel and the endcaps. - Currently effort is being used to look at the
services external to EE, because they influence
the design inside. - Future
- Install the new electronics in the test bench
E zero prime model. Includes making any
required mods to suit EE - Test beam runs to establish noise performance
- Fix noise problems
- Make engineering model of final design, produce
drawings - Oversee production
20Effort requirements - PPESP vs midterm review
21Effort requirements - midterm review vs current
situation
22Effort requirements in detail for each task
23Effort requirement year-by-year
24Effort requirement year-by-year (staff)
25Summary
- The scope of project includes making significant
parts but we (TD/PPD) cannot afford to assemble
or install the Dees. - There have been significant delays - to the VFE
electronics and the crystal delivery, eg. - A major exercise was undertaken in early 2001 to
fully re-cost activities to completion. - Some work was passed to PPD and a significant
increase in TD resources was sought at the
mid-term review. - Since then there have been yet further delays but
we have - Minimised effort usage where design work was
blocked - Sought to use ECAL-wide resources as far as
possible, by collaborating on the joint
mechatronics design (just starting to pay off) - replanned to live within the mid-term-review
effort budget