Thermal neutron guide H24
Thermal D2O moderator

Guide

H24
Height (mm) 200 (72.25m)
125 (23.25m)
30 (2.3m)
Width (mm) 45 (5.5m)
30 (92.3m)
Total length [2] (m) 97.8
Curvature radius (main part) (m) -11850
Material Borkron
Coating [3] m=1
Date of first commissioning 1972
Date of last major upgrade
Manufacturer (optical part) CILAS
Initial capture neutron flux at 58.6 MW (x1010 n/cm2/s) 0.225 [5]
(H24-2)
0.111 [5]
(H24-8)
Capture neutron flux June 2006 at 58.6 MW (x1010 n/cm2/s) 0.327
(H24-2)
0.108
(H24-8)
Instruments / Comments

IN3
IN13
D10
CT2

Cyclops
OrientExpress

 

[1] Guide length from the rear plate ( 5.9 m de la source) to first instrument / first bifurcation.

[2] Guide length from the rear plate ( 5.9 m from source) to last instrument.

[3] Coating out of pile part. m=1 natural nickel ; m=1.2 58Ni ; m=2/m=3 Ti-Ni supermirror.

[4] In-pile optical part installed by Swiss Neutronics for all the guides H1 and H2 in 2006.

[5] Linearily scaled flux to 58.3 MW (most of the time the starting value is 57 MW).