Page 118 - ELT_15th July 2020_Vol 373_Part 2

E28 EXCISE LAW TIMES [ Vol. 373

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resistant to the corrosive ef-
fect of nitric acid. The holding
or storage vessels are normal-
ly fabricated of materials such
as low carbon stainless steels,
titanium or zirconium, or
other high quality materials.
Holding or storage vessels
may be designed for remote
operation and maintenance
and may have the following
features for control of nuclear
criticality :
1. Walls or internal struc-
tures with a boron
equivalent of at least
2%;
2. A maximum diameter of
175 mm for cylindrical
vessels; or
3. A maximum width of 75
mm for either a slab or
annular vessel.
e. Neutron measurement e. Neutron measurement sys-
systems for integration and tems for process control Neu-
use with automated pro- tron measurement systems
cess control systems for the especially designed or pre-
reprocessing of irradiated pared for integration and use
fuel elements. with automated process con-
f. Industrial equipment in- trol systems in a plant for the
cluding assemblies and reprocessing of irradiated fuel
components as follows : elements.
1. High density (lead f. (deleted)
glass or other) radia-
tion shielding win-
dows
2. Radiation hardened
TV cameras, or lenses
therefor
3. ‘Robots’ or ‘end effec-
tors’ especially de-
signed for handling
high explosives; and
control units therefor
4. Remote manipulators
that can be used to
provide remote ac-
tions in radiochemi-
cal separation opera-
tions or hot cells
EXCISE LAW TIMES  15th July 2020  118