the spallation neutron source project: update

OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

The Spallation Neutron Source Project:Update

T. E. MasonOak Ridge National Laboratory

Associate Laboratory Director for the SNS

May 28, 2003

Arlington, VA

BESAC


The 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• It will be a short drive from HFIR, a reactor source with a flux comparable to the ILL


SNS - Guiding Principles

• SNS will provide high availability, high reliability operation of the world’s most powerful pulsed neutron source (cf white paper)

• It will operate as a User Facility to support peer reviewed research on a Best-in-Class suite of instruments– Research conducted at SNS will be at the forefront of biology,

chemistry, physics, materials science and engineering

• SNS will have the capability to advance the state of the art in spallation neutron source technology. This includes:– R&D in accelerators, target, and instruments to keep SNS at the

forefront

– Planned enhancement of SNS performance through upgrades of the complex and ongoing instrument development as part of the normal operating life of the facility


SNS 20-Year Plan• SNS will evolve along the path

envisaged in the Russell Panel specifications

• In twenty years it should be operating ~45 best-in-class instruments with two differently optimized target stations and a beam power in the 3-4 MW range

• The Power Upgrade and Long Wavelength Target Station should follow a sequence that meshes with deployment of the initial capability and national needs– This future depends on success

with the present 1.4 MW, 1 Target Station SNS!


Project Status

•The FY 2003 request was $225M, fully funded (rescission restored by supplemental)

•The FY 2004 request is $143M as expected

•Overall project design is 88% complete

•Overall the project is 61% complete (through March 2003) and within budget and schedule constraints

•$1.4B and June 2006 completion

•Contingency is adequate at ~20%

•ES&H performance outstanding

•>3 million hours without lost workday injury (combined hours worked for construction site and SNS/ORNL)


Cost Baseline

May-03 WBS Description Baseline, $M

1.2 Project Support 75.7 75.71.3 Front End Systems 21.1 20.81.4 Linac Systems 301.3 304.91.5 Ring & Transfer Systems 147.9 147.31.6 Target Systems 103.2 106.41.7 Instrument Systems 63.3 63.31.8 Conventional Facilities 345.1 355.31.9 Integrated Control Systems 59.6 59.6

BAC 1,117.2 1,133.4Contingency 75.5 19.5%* 59.3 20.2%**

TEC 1,192.7 1,192.7R&D 101.2 101.2

Pre-Operations 117.8 117.8TPC 1,411.7 1,411.7

Baseline, $MNov-02

*Based on EAC and estimated costs and awards through 10/31/02.**Based on EAC and estimated costs and awards through 4/30/03.


Project Cumulative CPI and SPI are Stable

CPI/SPI

0.8

1.0

1.2

Cost Perf Index (CPI) 1.00 1.00 1.00 1.00 1.00 0.99

Schedule Perf Index (SPI) 0.97 0.97 0.98 0.97 0.98 0.99

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

Notes: (1) Includes costs prior to FY99. (2) Based on 12/05 Early Finish Schedule.

675,000

725,000

775,000

825,000

875,000

925,000

975,000

1,025,000

1,075,000

$ x

1,0

00

BCWS 725,986 748,313 772,047 801,414 821,586 837,621 862,812 889,321 919,265 947,800 972,448 1,013,342

BCWP 706,250 726,079 753,394 777,779 801,921 825,877

ACWP 703,753 725,446 756,820 780,541 805,164 830,032

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

G

G


Major Accomplishments Since Nov

• Steel erection on CLO (Nov. 25) and Target Building (Jan. 27)

• Linac Tunnel 1000 MeV and Klystron BOD (Dec 18,

Jan. 17)

• Front End Beam ready for DTL commissioning (Dec. 30)

• Integrated Cryomodule test with Low Level RF (March 1)

• HEBT Service Building and HEBT BOD (Mar. 28, Apr. 10)

• Start Linac Installation (Apr. 4)

• Start Target Installation (Apr. 11)

• RF into DTL Tank 3 (May 1)


Steel Erection on CLO and Target Building


Linac Tunnel 1000 MeV and Klystron BOD


Re-Commissioning of FES• Front End Systems commissioning and IPS milestone: Front End

Beam available to DTL: DONE !

• Ran 24/7 starting December 14, 2002; continued until Jan. 31, 2003

12/14/02

20 sec/div


Integrated Cryomodule Test with Low Level RF

Figure1. Cavity amplitude and phase with feedforward & feedback control. 10MV/m, 1.2 msec, 60 Hz.

1%Figure 2. Magnified version

of Figure 1


HEBT Service Building and HEBT BOD


Start Linac Installation


Start Target Installation


RF into DTL Tank 3


Operations Planning

• We are continuing to develop plans for operations– Major activity over the past 9-12 months was discussions with the

ATLC (Atomic Trades and Labor Council) on crafts personnel for operations (construction is a separate issue covered under Project Labor Agreement and Davis-Bacon determination)

– Through an Interest Based Bargaining process we have reached agreement that provides for

A dedicated crafts core team that will service SNS facilities from the lab Facilities and Operations Directorate (for traditional craft designations)

A new multiskilled Research Mechanic that will allow for integration with ASD workforce and provide flexibility needed to support accelerator (and other technical) operations

– Increased accelerator operator staffing during pre-operations by nine FTE years


16 Instruments Now Formally Approved


Summary

• Although much work remains we are on track to complete the world’s most powerful facility for studies of the structure and dynamics of materials safely, on time, and within the approved budget

• Due to improvements in technology and ongoing value engineering, the facility will deliver higher beam power, better performing instruments, and more laboratory and office space for staff and users than initially thought possible at the time the project was approved

• We are adapting our plans to deal with issues as they arise, achieving key milestones and recovering from difficulties

the spallation neutron source project: update

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