Present: Luigi Scibile (Group Leader SMB-SE), Luz Anastasia Lopez Hernandez (Section Leader SMB-SE-PO), Michele Battistin (Section Leader EN-CV-PJ), Nuno Dos Santos (representing EN-EL-ENP), Alick Macpherson (representing BE-RF-SRF), Ghislain Roy (BE space manager), Frank Gerigk (BE-RF, CERN SRF Coordination)

The goal is to start with a feasibility study of the proposed SM18 extension and to move towards the construction phase as soon as possible. Parts of the extension have to be ready for use Q4/2017. The most urgent part is to define the outline of the building and to clarify whether the 2 air inlets for CV, can be moved onto the roof of the building or displaced and at which cost. The following actions are needed: 

Actions: 

1. F. Gerigk to contact EN-HE for a link person and someone to define how far the building can be extended without disturbing the truck traffic along this side of SM18. After the meeting: Damien Lafarge has agreed to look into this question and to provide an answer for the beginning of August. 
2. EN-CV (M. Battistin & Alexandre Broche) to study if the air inlets can be displaced (e.g. onto the roof) and at which cost.  
3. EN-CV to study if the HIE-ISOLDE clean room can be cooled in its present location. If not an air conditioning system shall be considered for the assembly area in the extension, so that the HIE-ISOLDE clean room can be moved there in the future. 
4. SMB-SE to define a link person which can follow the project.
5. F. Gerigk to set up a weekly project meeting. 
6. Add the project to PLAN (K. Schirm).

Decisions: 

• Karl Schirm will be project leader for BE-RF, with Alick Macpherson as deputy. 
• Alexandre Broche will be link person for EN-CV and Dominique Piednoir is the expert in charge of the existing CV operation in SM18 and will be invited to the project meetings.  
• After the meeting A. Kosmicki was confirmed by EN-ACE (Yvon Muttoni) as link person for the integration effort. 
• The extension will be a separated volume from the main SM18 hall. This will make ventilation of the new area more costly but it avoids dust and dirt coming from SM18 into the assembly area. 
• Apart from light, electrical plugs, and potentially an air conditioning system, there will be no additional electrical power needed for the extension. The power for the RF systems in the extension will be routed from the existing power outlet between the two horizontal bunkers. 

Discussion items: 

• Provided that the footprint and the needs are correctly defined, the building permit should not be an obstacle (SMB-SE).
• From the civil engineering side, the building does not seem to pose any particular challenge.
• In case the HIE-ISOLDE clean room stays at its present location, it may be enough to use filtered air from SM18 for the ventilation of the extension. The assembly area should have a maximum temperature limit (e.g. 28 deg) and it is more important to keep the temperature gradient in the extension low, than to have a constant low temperature (e.g. 22 deg). An air conditioning system in the extension (assembly area) should be considered if the HIE ISOLDE clean room moves into the extension at some point in the future. 

Minutes by F. Gerigk