Lucas Heights_OPAL

Organisation:            ANSTO (Australian Nuclear Science & Technology Organisation)

Installation:                 OPAL

Type:                  pool reactor, (20 MW, LEU, D2O reflector, Øth=5·1014 n/cmēs)

Address:                    ANSTO, New Illawarra Rd, Lucas Heights
PMB 1, Menai NSW, 2234, Australia

Home page:    

Contact:                     Dr. Ross Miller

Phone / fax:               +61 2 9717-3334,    fax:      -3606


Co-worker:                Dr. Robert A. (Rob) Robinson, phone -9204,      fax -3606



CNS:                          one, developed in collaboration with PNPI Gatchina

moderator:                 D2                               temperature:             20 K

eff. volume:                15 L                           phase:                        subcooled liquid

pressure:                   150 kPa                    power:                        4000 W

material: chamber:   AlMg5                                    vacuum thimble:        Zircaloy

heat removal:            gravity (thermal siphon) and direct cooling

refrigerator                AL, 1 turbine,   2 screw compressors,      2 X 250 kW(el.)

remark:                      reactor will not need to shut down in case of CNS failure
(room temperature cooling loop).


recent publications:  IGORR9 (Sydney 2003), Session 4 (V. Mityukhlyaev)
IGORR10 (NIST 2005)
IGORR2007 (LYON) "The OPAL Reactor" by R. Miller and T. Irwin (ANSTO), and J.P. Ordoņez (INVAP), see bibliography on the ottosix site.

"Design of OPAL CNS, for ANSTO, Australia" by N. Masriera et O. Lovotti (INVAP) at the 5th UCN/CN Workshop in Peterhof (RU) 2005.

"General Approach to Safety and Protection of a Cold Neutron
Source" by
N. Masriera (INVAP) at the 5th UCN/CN Workshop in Peterhof (RU) 2005.