ICS – Software Engineering Group 1 Status of SNS Carl Lionberger

ICS – Software Engineering Group 2 Spallation Neutron Source The SNS will begin operation in 2006 At 1.4 MW it will be ~8x ISIS, the world’s leading pulsed spallation source The peak neutron flux will be ~20-100x ILL SNS will be the world’s leading facility for neutron scattering.

ICS – Software Engineering Group 3 SNS Construction Progress

ICS – Software Engineering Group 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% ES&H performance outstanding >1.9 million construction site work hours without lost workday injury ….. BCWS ___ BCWP ___ ACWP

ICS – Software Engineering Group 5 Multi-Lab project

ICS – Software Engineering Group 6 SNS Project Staffing FY 2003 Project Average Staffing Through Jan. 2003: 2 FTEs above the FY 2003 plan average 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

ICS – Software Engineering Group 7 Multiple Labs Advantages Many teams working concurrently Labs working on parts that are their specialties

ICS – Software Engineering Group 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 don’t come with the system

ICS – Software Engineering Group 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

ICS – Software Engineering Group 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.

ICS – Software Engineering Group 11 EPICS components 2 Striptool heavily used in operations Bumpless reboot widely used Elog developed and used IOC logging using EPICS logserver

ICS – Software Engineering Group 12 Conclusions We couldn’t 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.