1. East Hall under construction - 1962
East Area Renovation: Project Team meeting #29 Feedbacks from the worksites and coordination meetings
Aboubakr Ebn Rahmoun / EN-EA,
East Area Renovation

2. Activities overview Power converter b.251 PS Extraction, F61 b.352
East Hall
b.157
A. Ebn Rahmoun,
Project Team #29

3. General information Power converter b.251 PS extraction b.352 b.157
Asbestos removal under the old selector ongoing
PS extraction b.352
The galleries contain asbestos, some part of de-cabling campaign affected
b.157
Emergency evacuation plan during renovation, with help of Louis-Frederic A.  signalisation do be installed
Fence installation on south platform ongoing
From 1 to 5 July no access via door next to CLOUD
Damages during roof renovation & bad weather during June
On the control rooms of IRRAD and CHARM
Beam line T08b, all equipments and electrical services are consigned
Ongoing preparation of an event…
A. Ebn Rahmoun,
Project Team #29

4. The summer is here So… Doodle East Area Renovation
A. Ebn Rahmoun,
Project Team #29

5. Summary Last coordination meeting 26th June, Indico: 830256 B.157
Dismantling (primary area)
Buffer area is ready for the dismantling
Test & validation of WDP for each operation (T11) ✅
Cleaning of area & handling TCX
Storage and
Floor load validation on pending from HSE
Q100 on CLOUD will be removed soon
Survey between T08B and T09-T10 experiments area done
EN-CV, dismantling on going, manifolds and water pipes
Civil engineering
On south wall, dismantling of scaffolding done.
The roof refurbishment on going, the dismantling of “lanterneau” started
B.352, PS –F61
Magnets dismantling
Last magnets have been removed and stored in Prevessin b.954
M100 15t & M200 30t
Transport activities, EN-HE
Trenches will be opened for removing the hoses removal, TE-MSC/EN-EL
EN-CV dismantling on going, manifolds and water pipes 251 & 817
Next steep, EN-EL (+ build.251&157)
Buffer area
CLOUD Area preparation run
*CLOUD run
From 02/09 to 15/11/2019
A. Ebn Rahmoun,
Project Team #29

6. Status power converters building
On going asbestos removal, to prepare remaining de-cabling @251, obsolete signal, all interlock and the transformer cables.
Dismantling false floor pending the de-cabling campaign
Inspection by HSE (asbestos) and VIC done to start the de-cabling phase.
A. Ebn Rahmoun,
Project Team #29

7. PS extraction, F61 Inventaire partie 352 Démantèlement F61
Déconnexions câbles DC & flexibles ED, TE-MSC,
Déconnexions du vide et enlèvement pompe à vide, TE-VSC/EN-EA
Préparation network, EN-SMM, du 13 au 15/03
Désinstallation BE-BI, LSD, SEC, BTV’s, TFA, BE-BI/EN-HE,
TREC et évacuation, matériel stockage, déchets en cours
Démontage de la porte secteur, EN-ACE, BE/ICS,
Manutention EN-HE
Etude structurel du sol validé par SMB,
Démontage blindage (coté accès et splitter), évacuation blocs < , Test de charge du pont validé
Désinstallation aimants/équipements et supports F61: Lancement VIC TE-MSC, EN-STI => EN-ACE
Q74 done TE-VSC, MNPA 25, Q120, MEA (DVT1), MEA (DVT2), QFL, Q600, SMH01(SPLITER)
Beam-stopper 01 et 02, EN-STI
Démontage blindage MCB, Dump F61D
MCB, Q120, Q120, MNPA25, M105, blind access for MCB transport
M100 M200, démontage prévu fin Mai, blind access, pont 25t->30t
EN-CV dismantling manifolds and water pipes b.352 done, 817->352 on going
EN-SMM laser scan + measure on PS magnets
EN-EA Shielding relocation between (intersection opening)
EN-EL de-cabling DC & signal cable from 251 to 352
Analysis of asbestos risk on galleries from PS, EN-ACE & EN-EA
opening trench by EN-HE and hoses removal by TE-MSC
A. Ebn Rahmoun,
Project Team #29

8. East hall TCX assembly Primary are dismantling Future TCX plug-in
Vacuum disconnected
Partial removal
T11, magnets BHZ01&02, collimators & beam-stoppers
T09,magnets QDE01, QFO02 & BZH01
Magnets removed to reduce the ambient dose rate
All instrumentations and the target have been removed
TCX (Collimator for primary targets)
Highly radioactive and most of them (80%) contaminated, different at each layer:
Up to 5 mSv/h contact
70 to 1400 Bq/cm² (up to 500 x CS limit for Co-60 = 3 Bq/cm²)
Contamination well managed during intervention: RAS on the floor after intervention < 0.4 Bq/cm2
Very old equipment and little information about configuration
Many different parts and composition, (concrete, iron, lead, no controlled ventilation)
Future TCX plug-in
Estimation Work Dose Planning
0.5 day, 3 pers. handling and decontamination cleaning + 1 Rp agent
218 person.µSv
98 µSv max. indiv
Real intervention
1.5 days, 6 pers. handling and decontamination cleaning + 1 Rp agent
434 person.µSv – well optimized compared to the actual duration
99 µSv max. indiv
New DIMR version needed (ongoing)
*Courtesy to G. Dumont, B. Lopez & J-F Gruber, HSE-RP
A. Ebn Rahmoun,
Project Team #29

9. Primary area
A. Ebn Rahmoun,
Project Team #29

10. EAR Schedule
A. Ebn Rahmoun,
Project Team #29

11. Questions? East Area Renovation A. Ebn Rahmoun, 28-06-2019
Project Team #29