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Figure 7. Axial flux distribution in the fuel region; results scaled to a k eff<br />

value of 0.95<br />

4.5E+15<br />

4E+15<br />

Neutron Flux<br />

3.5E+15<br />

3E+15<br />

2.5E+15<br />

2E+15<br />

ANL<br />

CIEMAT<br />

KAERI<br />

PSI/CEA<br />

JAERI<br />

RIT (JEF)<br />

RIT (ENDF)<br />

SCK-CEN<br />

1.5E+15<br />

1E+15<br />

5E+14<br />

0<br />

0<br />

10<br />

20<br />

30<br />

40<br />

50<br />

60<br />

70<br />

80<br />

90<br />

100<br />

110<br />

120<br />

Axial position (cm)<br />

130<br />

140<br />

150<br />

160<br />

170<br />

180<br />

190<br />

200<br />

Figure 8. Radial flux distribution in the mid-plane; results scaled to a k eff<br />

value of 0.95<br />

9E+15<br />

8E+15<br />

Neutron Flux<br />

7E+15<br />

6E+15<br />

5E+15<br />

4E+15<br />

ANL<br />

CIEMAT<br />

KAERI<br />

PSI/CEA<br />

JAERI<br />

RIT (JEF)<br />

RIT (ENDF)<br />

SCK-CEN<br />

3E+15<br />

2E+15<br />

1E+15<br />

0<br />

0<br />

5<br />

10<br />

15<br />

20<br />

25<br />

30<br />

35<br />

40<br />

45<br />

50<br />

55<br />

60<br />

65<br />

70<br />

75<br />

80<br />

85<br />

92<br />

100<br />

110<br />

120<br />

130<br />

142<br />

Radial position (cm)<br />

In the fuel region, the shape of the axial neutron flux distributions is in good agreement for most<br />

participants. However, the peak position reported by KAERI is shifted to the core centre<br />

(Z = 100 cm). The spread in the absolute value of the flux is still significant and the difference<br />

389

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