CLIC Technical Committee - Meeting #58

Tuesday 24 Apr 2012, 09:00 → 11:05 Europe/Zurich

18/3-030 (CERN)

Hermann Schmickler (CERN)

CLIC Technical Committee - Meeting #58 (24 Apr 2012)

Present: Davide Aguglia; Kurt Artoos; Michael Burns; Nuria Catalan Lasheras; Thibaut Lefevre; Helene Mainaud Durand; Michele Modena; Germana Riddone; Fabrizio Rossi; Hermann Schmickler
Chaired by: Dr. Schmickler, Hermann

General information:

Nuria Catalan Lasheras takes over as scientific secretary of the committee.
The committee will meet more often from now on. It was decided to meet every three weeks.
Hermann presented the final allocation of CTC budget. The final allocation for the whole CLIC project is around 16 MCHF, considerably lower than requested. The funding will stay stable until 2017. After many discussions, the budget codes will be allocated by activity and not by group. However, some of the main activities in CLIC as the two-beam module activity will have budget codes in all the three departments.
Concerning the coming collaboration meeting, Hermann asked to keep the chair and secretary informed of meetings organized with the collaborations in CTC subjects.

Prototype modules: LAB configuration. G. Riddone and H. Mainaud Durand.

The status and plans for the two beam modules was presented by Germana (see slides). The two test modules of type 0 are under assembly and should be ready around week 20. Hermann pointed out that the degree of sophistication of the disks will have a major impact on the cost. Germana assured that the high precision will not represent a mayor price increase and that it is important to learn about assembly before proceeding with accelerating structures to be high-power tested. These mock-ups are still a factor 10 cheaper than the real accelerating structures. Germana informed that two superstructures (2 basic structures each) will be assembled to be tested in CLEX. A second one will be also built to be tested in the stand-alone X-band test bench. Hermann suggested that the next step for this subject should be to test a full two beam module with beam as a final verification of the assembly procedure. This should be a subject for the X-band working package(Action: Germana)

Helene presented the geometric and alignment tests that have been done in the tests module components (see slides). At the same time different sensors and measurement devices have been tested and compared to each other. Some improvements have been applied and are being tested. Kurt answered to a question of Hermann indicating that vibration tests are also done in all the module components.

Hermann asked for the final plan for testing of temperature deformations and cycles to be presented in six weeks. The test themselves with the required conditions, infrastructure and coordination will be presented first at the module working group and then reported to the CTC.
Hermann also suggested the final transport test to be done to the main building during a council week to increase the project visibility. This means that a date should be reserved and that will also represent a milestone for the project. Germana assured that by June next year this should be possible. A review in summer next year should also be organized.

CLIC klystron modulators R&D. D. Aguglia

Davide presented the status of the R&D initiated inside EPC for the CLIC 1600 modulators. This subject was already presented to the TE department. The aim of the R&D program is to have two working prototypes for the klystron modulators by the end of 2016. To this end, collaborations are being studied among laboratories and universities looking at different technologies and topologies (see slides).

• A collaboration with LAVAL in Canada has already started for the procurement of a full power demonstrator of the pulse forming system in 2015.
• Another collaboration has started with Nothingam university for a reduced power demonstrator to be built in 2014.
• A collaboration with the ETH institute is being prepared subject to the approval by finance committee on June. They should deliver a full power modulator in 2015.
• At last, a collaboration with SLAC to deliver a reduced power demonstrator is still under negotiation. 

All the collaborations will be in the frame of a K contract. CERN should own the intellectual property at the end of the R&D program. The total estimated cost of the full program would be around 2.15MCHF committed to the collaboration plus 1.55MCHF foreseen to finish the second modulator with the finally selected technology. Resources inside EPC and fellos have also been identified and approved.
Hermann suggested that the technical issues of the project should be presented in a future CLIC seminar.

 Next meeting will take place on May 15th
reported by Nuria Catalan Lasheras 

09:00 → 09:30 General information

Speaker: Dr Hermann Schmickler (CERN)

Slides CLIC_Work_Packages_2012_-_2016_CTCallocation.xlsx

09:35 → 10:35 Prototype modules: LAB configuration

Speakers: Dr Germana Riddone (CERN), Dr Helene Mainaud Durand (CERN)

Slides 20120424_CTC_GR.pdf 20120424_CTC_GR.pptx

10:35 → 11:05 CLIC klystron modulators R&D

Speaker: Davide Aguglia (CERN)

Slides CLIC_RD_strategy_4CLIC_FIN.pdf CLIC_RD_strategy_4CLIC_FIN.pptx