Tokai-mura JRR

Organisation:            JAERI

Installation:                 JRR-3M

Type:                          pool reactor, 20 MW LEU, D2O-reflector, Øth=2·1014 n/cm²s,

Address:                    Jaeri, Tokai-mura, Naka-gun
Ibaraki-ken 319-1195, Japan

Home page:              http://neutrons.tokai.jaeri.go.jp/eng/

Contact:                     Dr. Yukio Morii

Phone / fax:               81-292 82 6093 fax 81-292 82 5922

e-mail:                        morii@neutrons.tokai.jaeri.go.jp

 

 

CNS:                          one, operating since 1990

moderator:                 H2                               phase:                        liquid

volume:                      1 L                              temperature: 20 K

pressure:                   120 kPa                     heat removal:            gravity (thermal siphon)

power:                        350 W

refrigerator                TAISAN, Brayton, one screw, 320 kW(el.)

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recent publications:              M.Utsuro in Proc. Workshop on Cold Sources at LANSCE,
Los Alamos, 1990, p.105

"Cold neutron production in solid and liquid CH4 moderators" by N. Morishima and T. Mitsuyasu
in Nucl.Inst&Meth. in Physics A, Volume 517,1-3, 2004, 295-300.

"Cold neutron production in solid and liquid CH4 moderators. II: on the reentrant-hole configuration" by T. Mitsuyasu, N. Morishima, & al.
 in Nucl.Inst&Meth. in Physics A, Volume_537,3, 2005, 610-613.

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Tokai-mura JSNS

Organisation:            JAERI

Installation:                 JSNS in J-PARC

Type:                          spallation source, 3 GeV, 0.333 mA, Hg target, Be reflector

Address:                    JAERI, Tokai-mura, Naka-gun
Ibaraki-ken 319-1195, Japan

Home page:              http://jkj.tokai.jaeri.go.jp/

Contact:                     Dr. Yujiro Ikeda

Phone / fax:               81-292                       fax 81-

e-mail:                        ikeda@cens.tokai.jaeri.go.jp

 

 

Cold Moderators:   three, under construction, ready in 5/2008

moderator:                 H2                               phase:                        supercritical

volume:                      ca. 1 L ea.                 temperature: 20 K

pressure:                   2 MPa                                   heat removal:            forced circ. ?

refrigerator power needed              5 kW  

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recent publications: Y. Ikeda in Proc. ICANSXVI (Neuss 2003) (about JSNS)

                                   Y. Kiyanagi in Proc. UCN-CNS 4th Workshop (PNPI 2003)