Status of SNS

1
Status of SNS

• Carl Lionberger

2
Spallation Neutron Source

• The SNS will begin operation in 2006
• At 1.4 MW it will be 8x ISIS, the worlds
  leading pulsed spallation source
• The peak neutron flux will be 20-100x ILL
• SNS will be the worlds leading facility for
  neutron scattering.

3
SNS Construction Progress
4
Project Status

• The FY 2003 request was 225M, fully funded minus
  3M due to rescission
• Impact being evaluated
• The FY 2004 request is 143M as expected
• Overall project design is 87 complete
• Overall the project is 58 complete (through
  January 2003) and within budget and schedule
  constraints
• 1.4B and June 2006 completion
• Contingency is adequate at 19
• ESH performance outstanding
• gt1.9 million construction site work hours without
  lost workday injury

.. BCWS ___ BCWP ___ ACWP
5
Multi-Lab project
6
SNS Project Staffing

• FY 2003 Project Average Staffing Through Jan.
  2003
• 2 FTEs above the FY 2003 plan average - 670
• 672 FTEs, a decrease of 4 FTEs from December
• Staffing Actuals for Jan. 2003
• 655 FTEs, a decrease of 38 FTEs from 693 FTEs in
  December

7
Multiple Labs Advantages

• Many teams working concurrently
• Labs working on parts that are their specialties

8
Multiple Labs Problems

• All using EPICS, but often differently
• Naming conventions and other standardizations are
  more important than they seem
• Last minute integration (at least from ORNL point
  of view)
• Developers dont come with the system

9
How far along are controls?

• Much is still at other labs but ready for
  installation task of local staff largely
  integration.
• CF, Front end and 2 DTLS as well as overall
  patterns of timing, MPS, PPS and vacuum controls
  done.
• 25 iocs out of 150 online
• Also 250 NADS

10
EPICS components

• Operator screens
• We have lots, often eng level
• Alarm Handler previously not used- next run will
  indicate current success.
• Archiver archiving lots of channels, needs some
  refinement
• Lots of physics apps that use JCA are well along.
• Matlab also useable tool with MCA
• BURT not in use previously we have developed
  jburt - again, next run will tell.

11
EPICS components 2

• Striptool heavily used in operations
• Bumpless reboot widely used
• Elog developed and used
• IOC logging using EPICS logserver

12
Conclusions

• We couldnt do things this way without EPICS
• Need fewer people
• Equipment shows up with a compatible control
  system
• Even with EPICS there are still ownership and
  local practices issues
• We have a lot of work left to do.