1. HIGH RADIATION TO MATERIALS WG3 – E XPERIMENTAL A REA HiRadMat project Team Meeting 03/0/2011 T9 transformation Repeatability test of experimental area tables (EDMS 1119840, Michael Lazzaroni) Ans Pardons– EN/MEF Weekly WG3 meetings material: http://indico.cern.ch/categoryDisplay.py?categId=2616

2. HiRadMat 2 January 2011: TBID dismounted Dose rate inside collimator volume (1mx1mx1.2m) was measured (N. Conan): The 4 copper blocks: Each bloc has hottest surface on the outside Axis of bloc 2&3 is outside range of overhead crane No remote handling foreseen (in 1993) Transformation of T9 Ans Pardons EN/MEF Débit de dose télétector 12.01.11 40cm à lextérieur des blocs : 20mSv/h 5 cm à lextérieur des blocs : 60mSv/h 10-15 cm dans les blocs Cu: 430mSv/h Max obtenu (distance non estimée) : 1 Sv/h

3. HiRadMat 3 Axis of bloc 2&3 is outside range of overhead crane Take 1&2 / 3&4 together Use custom-made lifting beam No remote handling foreseen Use existing threaded holes (4 per block) Handling plates must be installed on copper blocks Hottest surface on the outside Handling plates + extra shielding protect personnel when fixing plates Blocs will be placed inside container in sarcophagus downstream TNC (40cm iron) Transformation of T9: downstream collimator Ans Pardons EN/MEF

4. HiRadMat 4 Extensive tests on mock-up (S. Evrard) (carried out 02/02/2011, extensive report on EDMS1119840) Transformation of T9: downstream collimator Ans Pardons EN/MEF

5. HiRadMat 5 Presentation in ALARA L3 committee of 17/1/2011 Followed-up by review in the following week (M. Tavlet, P. Bonnal) Extensive documentation (procedure, DIMR, risk analysis,...) in EDMS for approval per phase Phases: 0- Preparation area & tests 1-Dismount and transport upsteram collimator & target 2- move two upper copper blocs to downstream TNC 3-move two lower copper blocs to downstream TNC and place all 4 blocks in containers inside sarcophagus 4-5-6-7: Prepare area for receiving TED, install TED, close shielding Transformation of T9: ALARA approval Ans Pardons EN/MEF

6. HiRadMat 6 Green light for phase 1 received 1/2/2011 roof block, target and collimator removed on 2/2/2011 Transformation of T9 Ans Pardons EN/MEF

7. HiRadMat 7 Green light for phase 2 received 3/2/2011? two upper copper blocks planned to be removed 3/2-5/2 (~18h of work) (situation on 5/2: shielding in place downstream from lower copper blocks) Green light for phase 3? two lower copper blocks removal & storage in closed sarcophagus (~20h of work) Then: phase 4 (~8h) – with last transport TNC TT61 Transformation of T9 Ans Pardons EN/MEF