Draft Minutes of the RFQ cooler « ISCOOL » meeting

2005/12/07 in 304-1-B

Presents: Richard Catherall, Tim Giles, Mats Lindroos, Nicolas Chritin, Ivan Podadera Aliseda, Julien Parra-Lopez, Gerrit Jan Focker, Ermanno Barbero, Sophie Meunier, Pierre Delahaye

Excused: Cyril Bachelet

Present status of the RFQ cooler:

• Some drawings and more precision are required for the cabling of the electrodes of the RFQ before a FSU can be hired for doing the work
• The feet for the setting up of the RFQ trolley in the building 275 are being designed by Nicolas. They should be machined at the ISOLDE workshop
• No alignment for the trolley is required in 275. It will have to be aligned for the setting up in the ISOLDE hall.
• Diaphragms of diameter 10 at the injection and 4 at the extraction have to be mounted on the inner structure of the RFQ. Such diaphragms prevent a “shooting through” mode of the RFQ without big losses.
•  The drawings of the triplets have been made by Nicolas. Their design was discussed between Ivan and Tim. The 3D models still need to be validated by Tim. One triplet will be built at Orsay, the other one at Mainz. 
• The ceramics of the RFQ need to be leak tested. All the equipment necessary for this is already available in the ISOLDE workshop or in 275.
• The pumps will be shipped in 275 and tested there, with the ceramics
• A lifting system has to be found for installing the pumps under the RFQ
• A new o-ring for the big tank will be ordered by Angst and Pfiffer, and delivered in January.
• A faraday cup + scanner will be available by the beam diagnostic group. The VME that was ordered for the off-line separator might be borrowed until March 2006
• A proper grounding of the RFQ structure needs to be done during its installation in 275 in preparation of the safety inspection
• Some work remains to be done for the three-phase connexion of the roughing pump
• An extension of the current high voltage cage has to be designed for the oscillator circuit of K. Rudolph and the power supplies of the LPC source
• An offer for the airside multipin plugs has been sent by Hositrad. The delivery time is about 3 weeks (January)

The availability of Julien for the electrical safety, power supply and high voltage cage issues will be rather limited in the next few months. Same for Sophie with the vacuum issues.

Memos:

Memos have to be written for the installation of the RFQ in 170, and sent to all the section leaders that they are informed rather precisely of the work load needed by the project. These memos would have to be similar to the “beam line modification requests” which are in use in the other experimental areas. Richard will be looking for a person who would be taking this work in charge.

Minutes by Pierre Delahaye.