Oak Ridge HFIR

Organisation:        Oak Ridge National Laboratory (DOE)

Installation:           HFIR, operating since August 1965,

Type:                    high flux compact core reactor, HEU, 85 MW, Øth=15·1014 n/cm²s,

Address:              ORNL, P.O.Box 2008
Oak Ridge, TN 37831-6430, USA

Home page:          http://www.ornl.gov

Contact:                Douglas ("Doug") L. Selby

Phone / fax:           +1 865 574 6161   fax:    +1 865 241 1887

e-mail:                 selbydl@ornl.gov

 

 

CNS:                    one, operation planned for 2007

moderator:            H2                       phase:                 supercritical

volume:                505 ml                 temperature:                  20 K

pressure:             1.5 MPa      heat removal:        forced (cryogenic circulator)

material: chamber: Al 6061                vacuum thimble:    Al 6061

power:                 3000 W                refrigerator:           2 M$ 

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remarks:              reactor does not need to shut down in case of CNS failure (80 K (LN2) cooling loop).

recent publications: Proc. IGORR10 (NIST 2005):" HIGH FLUX ISOTOPE REACTOR COLD SOURCE SAFETY ANALYSIS" by D.H. Cook

                                IGORR2007 (Lyon, FR, 2007): "Status of the High Flux Isotope Reactor and the Reactor Scientific Upgrades Program"
                                by D. L. SELBY (and more, see transactions rrfm2007)

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Oak Ridge SNS

Organisation:        Oak Ridge National Laboratory + 5 partner labs (DOE)

Installation:           SNS (operational with 1.4 MW since 2006)

Type:                    spallation source, 2 MW, 1 GeV protons, Øth=15·1014 n/cm²s (peak),

Address:              project office: 701 Scarboro Road
Oak Ridge, TN 37830, USA

Home page:          http://www.sns.gov/

Contact:                Ian Anderson (experimental facilities)

Phone / fax:           +1 865-574-0548  fax:    +1

e-mail:                 andersonian@sns.gov

CNS contact:         Eric B. Iverson (iversoneb@sns.gov)

 

CNS:                    two, operational in 2007

moderator:            H2              phase:                 supercritical

volume:                2X1 L          temperature:                  20 K

pressure:             1.5 MPa      heat removal:        forced (cryogenic circulator)

power (total):         3500 W       refrigerator:           by AL

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remarks:             

recent publications: ICANS-XVI (Neuss 2003): M31 (A.Crabtree)

ACNS 4, June 2004: "Technical Concepts for a Long-Wavelength Target Station for the Spallation Neutron Source" by J. M. Carpenter

ICANS18- Id169, 2007: "First Moderator Performance Calculations for a SNS Second Target Station" by F.X. Gallmeier

ICANS18-Id171, 2007: "SNS Hydrogen Moderator System - A Year in Review"
by J. A. Crabtree.


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UCN project status and activities on the Fundamental Physics Beam Line FPBL see http://www.phy.ornl.gov/nuclear/neutrons/ProjectStatus.pdf

"Status of the Fundamental Neutron Physics Beamline at the SNS" by M. Cooper at 5th UCN/CN Workshop in Peterhof 2005

ICANS-18-Id182 2007: "Fundamental Neutron Physics Beam at the Spallation Neutron Source" by W. M. Snow,