1. Normalized Performance
Key Concept of JA DEMO
FIP/3-2, Y. Sakamoto
Operational flexibility from pulse to Steady state
Pfus ~ 1.5 GW (Pgross~ 0.5 GWe) for Steady state
Pfus ~ 1.0 GW (Pgross~ 0.3 GWe) for 2hrs pulse with moderate plasma performance for commissioning
Parameter
Steady state
2hrs pulse
Size & Configuration
Rp (m)
8.5 
ap (m)
2.42 A
3.5
k95
1.65
q95
4.1
Ip (MA)
12.3
BT (T)
5.94
BTmax (T)
12.1
Absolute Performance
Pfus (MW)
1462
1085
Pnet (MWe)
303
185 Q
17.5 13
PADD (MW)
83.7
83.5
ne (1019m-3)
6.6
6.5
Normalized Performance
HH98y2
1.31
1.13 bN
3.4
2.6
fBS
0.61
0.46
fCD
0.39
0.32
ne/nGW
1.2
Feasible DEMO based on ITER technologies.
Blanket: ITER-TBM strategy in Japan
Divertor: Water cooling and W mono-block divertor
Magnet: Radial Plate structure, CIC conductor (Nb3Sn)