# Presentation: 004608

## Remote Participation US LHC Hardware Installation and Commissioning

- Present Participation
- How we might participate remotely

- _Remote Participation US LHC Hardware Installation and Commissioning_

## LHC

- 4 Interaction Regions (with US IR magnets)
- RF Section with US separation Dipoles
- Several Sectorized Subsystems: Cryo, Magnet, Power, Protection, Vacuum....

- LHC Accelerator Hardware Overview

- US Components in 5 IR’s

- In IR1,2,5, 8
- Cryo, Powering, Vacuum etc. tied into the sector

- 	Other important components
-  	Hadron and neutral absorber for IR1, 5(LBNL)
- 	Other separation dipoles in IR 1,2,4,5,8 (BNL)

- IR 2,8 only

## Inner Triplet Cryogenics

**Inner Triplet Cryogenics**

- USLHC played a major role in the design
- Commissioned along with sector
- Control Loop complicated by large dynamic heat load and interplay with Sector cooling
- Paper studies at CERN on operational parameters

- We are vitally interested in the performance of these sub systems

## Powering of Inner Triplet

- Nested Power Loop
- 600 amp Trim
- Most complicated
-    circuit in the LHC
- Also 12 independently powered
-    corrector circuits

**We are a small but complicated spot on the LHC landscape!!**

## Installation Procedures Proved during Mechanical Fitup at CERN in April 2005

- Interconnect region

## Time Frame:  First Inner Triplet Fall 2005 (November)
Train CERN contractors on installation procedures
Review mechanical, vacuum, electrical and alignment data

For rest of installation, we have do not anticipate a large US presence at LHC for installation 
Touch labor performed by CERN contractors
Oversight from CERN and US staff
Main Participants are Engineers from FNAL, LBNL and BNL 
1-3 week visits only 

However.....  Low/High Luminosity, Tunnel Geometry makes each interconnect unique! Potential for trouble despite our “best laid plans”

- Train CERN contractors on installation procedures
- Review mechanical, vacuum, electrical and alignment data
- For rest of installation, we have do not anticipate a large US presence at LHC for installation
- Touch labor performed by CERN contractors
- Oversight from CERN and US staff
- Main Participants are Engineers from FNAL, LBNL and BNL
**1-3 week visits only **
- However.....  Low/High Luminosity, Tunnel Geometry makes each interconnect unique! Potential for trouble despite our “best laid plans”

- Installation of US Deliverables

## 
Start Fall 2005 (Right after installation)
Participation at first through short visits and possibly through LHC@FNAL
Full Commissioning Task Starts Spring 2006
3 Long term IR Hardware Commissioners with staggered start dates
Cryogenic Expert
Powering and Quench Protection Expert
System Design

Other US participants may be available TBA

- Start Fall 2005 (Right after installation)
- Participation at first through short visits and possibly through LHC@FNAL
- Full Commissioning Task Starts Spring 2006
- 3 Long term IR Hardware Commissioners with staggered start dates
- Cryogenic Expert
- Powering and Quench Protection Expert
- System Design
- Other US participants may be available TBA

- Commissioning of US Deliverables

## 
Each IR magnet string, each interconnect is different

They will be a large US participation for first string only , afterwards...1-3 week durations visit by one or two installation efforts only. 

Focus on interconnect details and electrical quality assurance

- Each IR magnet string, each interconnect is different
- They will be a large US participation for first string only , afterwards...1-3 week durations visit by one or two installation efforts only.
- Focus on interconnect details and electrical quality assurance

- How We Might Participate Remotely In Installation

## 
Electrical QA
Work with LHC QA to review installation data, compare to construction and test data etc...
“Real time” not necessary, however need access to
Telephone or instant messaging
Electronic Logbook
QA data base 
...accomplished through high speed internet (lots of data, plots ,photos etc)

- Electrical QA
- Work with LHC QA to review installation data, compare to construction and test data etc...
- “Real time” not necessary, however need access to
- Telephone or instant messaging
- Electronic Logbook
- QA data base
- ...accomplished through high speed internet (lots of data, plots ,photos etc)

- How We Might Participate Remotely In Installation

## 
Interconnect problems  (don’t expect very many problems however...)
Problems will likely be ones of “detail”  not easy to spot without visual inspection or rapid turnaround/high resolution video

Useful media devices to allow rapid resolution of problems
WEB CAM
Pros
	Rapid communication and direction to problem
Cons:
Security issues?
Resolution (problems will be in the details)
Cell Phone and Digital Camera (picture or short movie)
Pros
Easy to use
Cons
Harder to converge on complex problem
Again high speed internet connect is a must

- Interconnect problems  (don’t expect very many problems however...)
- Problems will likely be ones of “detail”  not easy to spot without visual inspection or rapid turnaround/high resolution video
- Useful media devices to allow rapid resolution of problems
- WEB CAM
- Pros
- 	Rapid communication and direction to problem
- Cons:
- Security issues?
- Resolution (problems will be in the details)
- Cell Phone and Digital Camera (picture or short movie)
- Pros
- Easy to use
- Cons
- Harder to converge on complex problem
- Again high speed internet connect is a must

- How we might participate Remotely In Installation

## Hi-res pictures

- Problem on LHC supplied corrector solved by sending photos and information via email (took several hours)

- ~2 cm

## 
Scenario 126 Illustrates possibility
Operation Problem that local CERN or US person cannot immediately solve
LHC@FNAL staffed by US personnel staff during the day in the US (evening at CERN)
Requirements
Read/write access to E log books
Read access to cryo and power data (need not be real time)
Excellent communication (phone, instant messaging)

- Scenario 126 Illustrates possibility
- Operation Problem that local CERN or US person cannot immediately solve
- LHC@FNAL staffed by US personnel staff during the day in the US (evening at CERN)
- Requirements
- Read/write access to E log books
- Read access to cryo and power data (need not be real time)
- Excellent communication (phone, instant messaging)

- How We Might Participate in Remotely in Hardware Commissioning

## Typical event displays  (these were generated in our test facility)

- Quench Detection (time resolution at LHC will be much lower 5 ms)

- Thermometry

## 
Using LHC@FNAL vs.  ones own desk desktop
Expect better resolution, more screens, better communication, focal place for people to congregate
When will  “basic” LHC@FNAL be operational?  Note:
Installation starts in November
Commissioning will start in December 2005-January 2006
Will it be used regularly ?
Needs to be easy for both sides to use
Be able to easily view data, preferably using common applications
Very good communication, phone, internet
Visual connection is not essential but with be greatly facilitate.

- Using LHC@FNAL vs.  ones own desk desktop
- Expect better resolution, more screens, better communication, focal place for people to congregate
- When will  “basic” LHC@FNAL be operational?  Note:
- Installation starts in November
- Commissioning will start in December 2005-January 2006
- Will it be used regularly ?
- Needs to be easy for both sides to use
- Be able to easily view data, preferably using common applications
- Very good communication, phone, internet
- Visual connection is not essential but with be greatly facilitate.

- Problems and Concerns

## 
HC is an important way for the US to contribute to the LHC project

LHC@FNAL could increase impact of US participation, although probably not as much as with CMS and Accelerator Operations
  ...although in a few instances it might be a life saver
Will be very useful for solving hardware problems during operation
Installation and commission is on the near horizon, 
can’t wait for full facility 
could be used to get prototype LHC@FNAL started.   

- HC is an important way for the US to contribute to the LHC project
- LHC@FNAL could increase impact of US participation, although probably not as much as with CMS and Accelerator Operations
-   ...although in a few instances it might be a life saver
- Will be very useful for solving hardware problems during operation
- Installation and commission is on the near horizon,
- can’t wait for full facility
- could be used to get prototype LHC@FNAL started.

- Conclusion