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Visitor’s path declassification for
LS2 and LS3?
(Summary of first discussion K. Barth with RP – H. Vincke)
Visitor path in UX25 Declassification from supervised area for LS2
(and LS3?)• Have the visitor path in UX25 declassified would allow to bring down
also visitor groups with an age limit of >= 12 (limit presently >=16 because of supervised area rules)• Access control (accounting of person) going down in UX25 remains
(imposed by fire/evacuation risk)• The start of the supervised area could be displaced from SX2/PAD
down to UX25 outside the safe area of PX24 under certain conditions.• If we want to keep the entire visitor path in UX25 (including access to
the low beta platform) only part of it will be in a declassified zone.• Idea is to have the entire UX25 path for visitor groups (>=16years) and
for visitors < 16 years only access to the part in the declassified zone.
Present ALICE Visitor path – SX2
Acces to CRs
ALICE VisitorCenter
Cooling Area
ALICE Buffer Zone
ALICE Runcontrol Center (ARC)
Coffee Room
WC
ALICE Workshop
In Non-supervised Zone
Supervised Zone
With proposed change of supervised area startALICE Visitor path – SX2
Acces to CRs
ALICE VisitorCenter
Cooling Area
ALICE Buffer Zone
ALICE Runcontrol Center (ARC)
Coffee Room
WC
ALICE Workshop
In Non-supervised Zone
Supervised Zone
In Non-supervised Zone
Supervised Zone
With proposed change of supervised area startALICE Visitor path – SX2
Conditions / Needs to change supervised area
• The supervised area has to be limited/closed. Before this was assured via the PAD/MAD. To change start would mean in UX25 to put fences and doors (with card reader and IMPACT controlled access point).-> detailed study needed• Modification of start of stairs (I-side) to allow fencing of the area in
level 0 around the cooling plants. -> detailed study needed• Hand/feet + material radiation monitors must be moved from PX24
top level to level 0 inside safe zone to be close to entry to the supervised zone.• Materials to come out of the supervised area must be measured and
if active they must be transported via the crane to top level PX24 buffer zone.
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