JINR Scientific Council Dubna, 5-6 June 2003

PAC for Condensed Matter Physics

9th meeting, 13-14 November 1998 10th meeting, 25-26 April 199911th meeting, 12-13 November 1999 12th meeting, 14-15 April 200013th meeting, 10-11 November 2000 14th meeting, 27-28 April 200115th meeting, 22-23 November 2001 16th meeting, 18-19 April 200217th meeting, 21-22 November 2002 18th meeting, 3 - 4 April 2003

1998 difficult yearMaintenance program of the IBR-2 reactor was fulfilledSuccessful restart in October 1998 of the IBR-2 reactorModernization plan for the IBR-2 reactor in 1998 failed

1999 still difficult yearIBR-2 reactor well running according to schedule in 1999Funding of IBR-2 Modernization in 1999:138k$ (1.11.99) 220 k$ neededk$ / year during 2000 – 2007Help is announced from MinatomIn 2000 - basic situation:50% from Minatom and 50 % from JINR2001-2002: Minatom fulfills its commitment and JINR?The shortfall in general funding should be fully recovered.RecommendationPriority for the IBR-2 reactor - basic facility-

JINR Scientific Council Dubna, 5-6 June 2003

Shock on PAC meeting in April 2003 for IBR-2 funding:underfinancing by nearly 50% of JINR (MAE ~100%)

Actually financing for 2003 by JINR ~50% (plan MAE ~-30%)

The PAC asks the Scientific Council again to repeat and to strengthen its recommendations for the upgrade of the IBR-2 reactor complex as absolute priority in international collaboration and obligation,to support the recent positive development to recover the shortfall in general funding and in the time schedule for the rest of the year 2003 and for the whole refurbishment period.Negotiations with MAE --- to obtain again the original budget.

JINR Scientific Council Dubna, 5-6 June 2003

IBR-2 reactor was running very reliableReflector exchange underwayRefrigerator facility delayed

JINR Scientific Council Dubna, 5-6 June 2003

The highest priority to the IBR-2 refurbishment

The IBR-2 reactor is aWorldwide competitive neutron source andLeading basic facility at JINR

The IBR-2 reactor is a long pulse neutron sourceThe second target station of the ESS(European Spallation Source) will have comparablecharacteristics as the ones of the IBR-2 reactor&cold source

The optimized instrumentation on the IBR-2 reactorwith its new cold source- Broad Band Source –will give a worldwide leading facility

The program must be started now!! Coincidence with 7-Years planA part of the cold source program (2 spectrometers)will show its quality before the start of the refurbishmentof the IBR-2 reactor in 2007

The exisisting Broad Band Source showed already itsexcellent performance and will run three cycles/year up to2007 for HRFD and SANS.

JINR Scientific Council Dubna, 5-6 June 2003

World class facility

JINR Scientific Council Dubna, 5-6 June 2003

InstrumentationThe modernization of the reflectometer SPN-1 was successfully performed----REMUR-- full polarization analysis-- increased intensity(waiting for cold neutrons)

JINR Scientific Council Dubna, 5-6 June 2003

(++) (--)Specular and off-specularreflection withpolarized neutrons

Structure + magnetic moments

(+-) (-+)

Time channels (wavelength)

Det

ecto

r pi

xels

Det

ecto

r pi

xels

Fe/Cr multilayer

JINR Scientific Council Dubna, 5-6 June 2003

Reflectometer REMUR

JINR Scientific Council Dubna, 5-6 June 2003

The PAC approved the reports on the themes:

Development of the IBR-2 spectrometer complex and information-computation infrastructure (07-4-1012-96/2003) (07-5-1013-96/2003

The PAC supports the opening (continuation) of the themes:

Development and creation of elements of neutron spectrometers for condensed matter investigations (A.Belushkin and V.Prikhodka)

Radiation effects and modification of materials, radioanalytical andradioisotopic investigations at the FLNR accelerators (S.Dmitriev)

as first priority topics for 2004-2008