LANSCE Update for BESAC

July 23, 2002

Paul W. LisowskiLANSCE Division Leader

Los Alamos National Laboratory

• CY2001 Run Cycle

• CY2002 Outage

• CY2002-CY2003 Run Cycle

• Summary

Outline

Lujan Neutron Scattering Center

Weapons Neutron Research Facility

Proton Radiography800 MeV Proton Linear

Accelerator

LANSCE is a unique multidisciplinary facility for science and technology with three operational user facilities

Lujan Center had a highly successful run cycle in 2001

• Delivered 2499 hours, or 131% of our goal of 2735 hours at 75% availability

• Delivered an integrated charge of 83% of our goal with 54 µA average current

• Performed 113 user experiments with 91% reliability of beam delivery and over 95% instrument availability

• Supported 270 user visits, 150 unique users

• Commissioned five new scattering instruments and one nuclear science instrument;

– SMARTS, HIPPO, PROTEIN, PHAROS (Rebuilt), and ASTERIX

– DANCE

• Developed and implemented a new generation of data acquisition and chopper control systems.

• Obtained approval for actinide experiments.

Lujan CenterMaterials Science

Characterizing Components and Materials

Plutonium Science

Highlights:

LANSCE has established an operations schedule for 2002-2003 that is similar to 2001

• Major milestones for the CY2002 schedule– December 24, 2001 Cease CY2001 operations

– January 2, 2002 Begin CY2002 outage (17 weeks)

– April 22-23 Materials Program Advisory

Committee Review Meeting

– June 1 Schedule Published on Web

– May 1, 2002 Begin CY2002-2003 user facility turn-on (37 days)

– May 27, 2002 Begin Proton Radiography operations

– June 3, 2002 Begin Proton Storage Ring operations

– June 19, 2002 Begin WNR Low-power operations

– July 7, 2002 Begin Lujan Center tune-up

– July 26, 2002 Begin scheduled user facility operations

– January 26, 2003 Cease CY2002-2003 operations

The Lujan outage schedule in CY2002 was aggressive and completed in time to start user program

• Old Lujan Target removed and placed in storage as a low-current spare, and new Lujan Target installed

• Integrated shielding package installed on FPs 11, 12, 13

• New redundant personnel protection system on all flight paths

• New mercury shutter reservoirs for older flight paths, with upgraded piping and sensor systems

• Computerized control of all shutters, with data available in the Central Control Room

• Data acquisition conversion of User Program instruments done

• ASTERIX instrument rebuilt

• NODF (Formerly Neutron Powder Diffractometer) upgrade underway

NPD before major surgery

FP 12 & 13 are ready for beam

The Mark-II TMRS design with stainless steel and beryllium reflectors is installed and operational at 100 µA

Beam window and guard ring

Middle beryllium reflector

Upper SST reflector

Lower flight path liners and water moderators

Service Connections

Beam Diagnostic

Lower Be/SST composite reflector

LH2 Moderator

Upper tungsten target

3m

We are expanding the size and quality of our user program consistent with our strategic plan and previous BESAC recommendations

• Deliver beam at 100 µA with >75% availability for 2616 hours for user program, supplemented by 336 hours for instrument tune-up and 384 hours of contingency

• Limit beam down-times longer than 8 hours to <10% of scheduled time

• Deliver 95% instrument reliability

• Increase sample environment support– 11T Magnet

– Cryofurnace

– More staff support

• Increase user base* by 15%

*Based on number of users on scheduled proposals in CY2003-2003 compared with users in CY2001

0

50

100

150

200

250

300

CY1997 CY1998 CY1999 CY2000 CY2001

User Visits

Unique Users

Experiments Run

Year

Num

ber

YearWe made major progress in 2001 towards establishing a significant user base at Lujan Center

Rotation model for CY2002-2003 user program in neutron scattering maximizes the number of instruments

NPDSMARTS

HIPD

HIPPO

SCDFDS

SPEAR

LQDASTERIX

PROTEIN

PHAROS

Full Support for User Program4 FTE

0.5 FTE Institutional & Friendly User Support

May

Turn-on

1L Maintenance

Lujan User Program

Sole Use

Contingency / Lab Closure

2003 Outage

LANSCE will continue a predictable, repetitive 28-day operating cycle with contingency in CY2002-2003

June July August September October November December January

Lujan Tune Up

WNR User Program

WNR Low PowerA 28-day cycle

Lujan/WNR Lujan/WNR

Sole Use

Lujan TargetMaintenance

Sole Use

AcceleratorMaintenance

LANSCE Operating Schedule for CY2002-2003

Beam delivery to Lujan will increase 25% after installation of a switchyard kicker system during the CY2003 outage

Target 4

90L

30L15L

15R

30R

60R

90R

Target 2

120L

Weapons NeutronResearch Facility

Area C Line BUltra-Cold Neutrons(future)

Proton Radiography

Area A (inactive)

Lujan Center

ER-1

Target 1

34

5

86

7

ER-2

9

1011A/B

12

13

1

2

14

1516

H+ Source

H- Source

Isotope ProductionFacility (construction)

Drift Tube Linear

AcceleratorLine D

Side-Coupled Linear Accelerator

PSR

We are aggressively implementing the November 2000 BESAC recommendations in our operations and governance

• Provide a single Steward of this facility

• Develop an adequately-funded, actionable implementation plan for FY2002, sustainable over the period 2002-2008

• Specify a ramp-up schedule for LANSCE/Lujan to full functional status by FY 2003

• Increase the LANSCE/Lujan user base to ~1000 by 2006

• Responsibility assigned to NNSA, Executive Council established

• Completed externally and internally peer-reviewed bottom-up cost estimate for LANSCE

• Completed as part of cost estimate. Funding increment of $10M in 2003 LANSCE operations budget

• Began process with successful CY2001 operating cycle - 270 user visits, 150 unique users

Recommendation Action

Summary

• In 2001 LANSCE completed an excellent scientific program at all facilities with the largest number of users to date

• Proposals for LANSCE use in 2002 were evaluated and an operations schedule was developed using lessons learned from 2001

• LANSCE completed an aggressive, well-managed outage on schedule and is operational

• The Mark-I Lujan target-moderator-reflector system has been moved to storage and is available as a 55 µA backup

• The Mark-II Lujan target-moderator-reflector system has been installed and is operational at 100 µA

• The Switchyard Kicker project is proceeding well and the equipment will be installed and commissioned in 2003

• The Lujan Center user program will start on July 26, 2002 and run until January 26, 2002.

0

10

20

30

40

50

60

70

HIFR IPNS Lujan NCNR

Users per Instrument (FY01)

Fig. 8 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

OSTP report uses ~4, actual data is 6.3 (25 users/4 instruments run in 2000)

Instrument throughput: users per instrument in FY2001

0

20

40

60

80

100

120

140

160

180

HFIR Lujan IPNS NCNR ISIS ILL

Research Facility Staff

Fig. 12 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

OSTP report indicates ~38, actual data is 21.

Number of research facility support staff (includes staff that support use and instrument ops, but excludes support of source operations)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

HFIR* Lujan IPNS NCNR*

Staff per Instrument (FY01)

Fig. 13 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

*Based on FY00 data from OSTP report.

Research facility support staff per instrument in FY2001

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

HFIR* Lujan IPNS NCNR*

Users per staff (FY01)

Fig. 14 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

*Based on FY01 and FY00 data from OSTP report.

Users per research facility support staff member in FY2001

0

100

200

300

400

500

600

700

800

Physics &Material Science

Chemistry Macromolecules Biology Other

Users

NCNR*

HFIR

Lujan

IPNS

Fig. 16 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

*Data based on FY01 and FY00 information provided in OSTP report.

US neutron scattering users by field of research for FY2001.

0%

20%

40%

60%

80%

100%

Physics & MaterialScience

Chemistry Macromolecules Biology Other

Share of Users

NCNR*HFIRLujanIPNS

Fig. 17 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

*Data based on FY01 and FY00 information provided in OSTP report.

Share of users at US neutron facilities by scientific field FY2001

0%10%20%30%40%50%60%70%80%90%

100%

IPNS Lujan NCNR*

Usage by field

Other

Biology

Macromolecules

Chemistry

Physics & Material Science

Fig. 18 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US.

*Data based on FY01 and FY00 information provided in OSTP report.

Share of scientific field by users at each US facility in FY2001

0

100

200

300

400

500

600

University Host Lab Government Industry Other(includingforeign)

Users

NCNR*

HFIR

Lujan

IPNS

Fig. 19 in OSTP Report on Needs of Major Neutron Scattering Facilities & Instruments in the US (FY00).

*Data based on FY01 and FY00 information provided in OSTP report.

Number of users by individual affiliation in FY2001