Joyo User's Guide
Home > Performance of the Joyo MK-IV Core > Typical Core Configuration
Outline of the Shared Facility Use System
Shared Use of Facilities Including Joyo
Use Fees for Shared Facilities Including Joyo
Application Form for Use of Joyo and the PIE Facilities
Schematic Flow Diagram of Use for Irradiation (An Example of Material Irradiation)
Outline of Joyo
Performance of the Joyo MK-IV Core
Typical Core Configuration
Radial Distribution of Fast Neutron Flux in the Core
Neutron Spectra at Various Positions in Joyo
Example of Axial Temperature Distribution (at 6th row)
Irradiation Rigs
Post Irradiation Examination Facilities
Access Map・Contacts
Site Map
 
 

Typical Core Configuration
 
 
Typical Core Configuration
 

■ Summary of the Joyo MK-IV Core

 
Reactor power
100 MWt
Maximum fast neutron flux
(E≧0.1MeV)
2.9×1019n ･m-2･s-1
Primary coolant flow rate
2700t･h-1
Coolant temperature (Inlet*)/Outlet)
250～350°C/456°C
Core height
500㎜
Number of fuel subassemblies
79 in maximum
Reflector/Shielding subassembly
Stainless steel/B4C
Installable number of irradiation rigs
10 in maximum
Pitch between subassemblies
81.5㎜
Length of the rated power operation cycle
60 days/cycle in maximum
*）Inlet minimum temperature:250℃
 
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