Status of JRA-SRF in CARE Reminder JRA-SRF: Strategy, Partner, financial volume Where do we stand in JRA-SRF today Progress in work-packages, schedule Administrative & financial issues What is next First yearly report, financial audit First CARE yearly meeting at DESY
Coordinated Accelerator Research in Europe
JRA1 (Joined Research Activity) in the CARE (coordinated accelerator research in Europe) proposal Title: Research and Development on Superconducting Radio-Frequency Technology for Accelerator Application Acronym: SRF Co-Coordinators: D. Proch, DESY, T.Garvey, CNRS-Orsay Deputy: H.Mais
11 Participating Laboratories and Institutes: Institute (Participating number) Acronym Coordinator DESY (6) DESY D. Proch CEA/DSM/DAPNIA (1) CEA CNRS-IN2P3-Orsay (3) INFN Legnaro (11) R. Aleksan CNRS-Orsay T.Garvey INFN-LNL S. Guiducci INFN Milano (11) INFN-Mi S. Guiducci INFN Roma2 (11) INFN-Ro2 S. Guiducci INFN Frascati (11) Paul Scherrer Institute (21) Technical University of Lodz (14) Warsaw University of Technology (16) INFN-LNF S. Guiducci PSI TUL WUT-ISE V. Schlott A.Napieralski R.Romaniuk IPJ Swierk (15) IPJ M. Sadowski
SRF accelerator technology: R&D Subjects High gradients ( close to the theoretical limit) increase beam energy /shorten linac length High Q value (= low Rf loss) Reduce cryogenic cooling power Allow long pulse operation ( CW) Reliability of cavity and auxiliary components Availability of accelerator system, Robust fabrication, preparation and assembly technology Reproducible component and system performance Reduce cost of mass fabrication
Strategy of SRF- accelerator R&D inside I3 (integrating infrastructure initiative) of FP6 TTF (TTF-FEL) is an excellent accelerator test-bed for R&D on SRF accelerator technology Use /modify existing infrastructure (chemistry, clean room treatment, cryogenic installation, materials analysis,...) at partner laboratories to design and prototype new SRF accelerator components Install new components in TTF linac to : increase operational performance of TTF establish improved technology for application at any existing or planned SRF accelerator
Breakdown of EU support (5 M ) travel 8% Manpower 40% Manpower dur. Equipment consumables travel consumables 50% dur. Equipment 2%
Status of JRA-SRF CARE started at 1.January 2004 But EC support arrived in May (in July for Polish partners) Resulted in some delay in investment and hiring non permanent staff Has delayed schedule for only a few tasks But spending of EC money is behind schedule
Status of Activities in JRA-SRF Improved cavity fabrication Experience with cavity assembly and operation is analyzed Contact to industry for improved design just started Thin film cavity production Coating apparatus is improved by new trigger laser and vacuum components Samples are analyzed by Tc and delta Tc, look like bulk Nb First rf tests with samples show results equal to bulk Nb
Documentation retrieving on Components & Ancillaries from various lab. Ancillaries Cold flanges Stiffening Pick-up HOM Tuners Power coupler conn. Work in progress He tank Tuner Power coupler Pick up connection Preliminary study of deformation of a Al seal: SS and Nb flanges, room temp. Cold Flanges HOM Stiffening ring
Documentation retrieving on Components & Ancillaries from various lab: cold flanges Preliminary study of deformation of an Al seal: (SS and Nb flanges, room temp.) Stresses Residual plastic deformation
Vacuum arc coating by a linear cathode
Planar vacuum arc coating with a magnetic droplet filter
Status of Activities in JRA-SRF, cont. Seamless cavity fabrication Present machinery is modified for 9-cell cavity fabrication Surface preparation Systematic study with samples on EP working parameter is finished Software for automized EP is developed DESY EP for 9-cells is under commissioning Tests with dry ice cleaning of 1-cell cavities started
Double - cell Nb cavity 2H1 hydroformed at DESY from Nb200 deep drown tube no intermediate constraints no intermediate annealing
Principle layout of experimental set up for exploring parameter space of EP
Dry ice cleaning tests Nozzel test in cut NbCu cavity Cleaning the beam tube of Nb cavity
Status of Activities in JRA-SRF, cont. Materials analysis Contract for development of industrial SQUID scanner is placed Fabrication of electrolytic cells for magnetometry is in progress DC field scanning of samples started, especially for dry ice cleaned samples Power couplers Alternative design of rf coupler is ready High power conditioning started at Orsay
Input coupler design with disc rf windows
TTF design with cylindrical rf windows
Assembly of coupler test stand in clean room in Orsay
Status of Activities in JRA-SRF, cont. Cavity tuners Mechanical layout of tuner system is finished Cooperation and Coordination of tuner activities (piezo-, magneto-strictive elements, radiation hardness tests) in different labs is well established Low level RF control Design work and system layout for various control issues under development (single bunch transient, stable frequency distribution, FPGA, multi channel down converter) Radiation hardness tests are under progress
Status of Activities in JRA-SRF, cont. Cryostat integration test Design of adaptation for 9-cell cavities at CHECHIA is well progressing Beam diagnostics First generation of rf beam monitor is installed in TTF Simulations of the Diffraction Radiation for different conditions of beam is in progress
CryHoLab at Saclay/Orsay
Signal from cavity type beam position monitor in TTF (WP 11)
Financial issues EC support is always requested for 18 month period For JRA-SRF first 18m request is about 50% of total request Actual EC payment is 75% of requested support Remaining 25% is released after positive audit at end of first 12 month
Example of spending profile (WP3) WP 3.2 : Seamless cavity Production 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 0 Etat Ausgaben Pro Monat Jan Feb Mrz Apr Mai Jun Jul Aug Sep Okt Nov Dez
Financial issues, cont. If EC money is not being spent in time: Money is not lost, but next EC support will be reduced by the left over money Over all spending profile can be adjusted in order to spend the left over money at later time If schedule stays behind, duration of JRA can be extended and residual money can be spent during extension.
Summary status JRASRF Remarkable progress in all work-packages Despite some difficulties during the learning process of EC formalities Some schedule delay because of late arrival of EC support, will be made up in the future FTE s hired up to now (non permanent) : 16 Substantial support for travel Next challenge: our first yearly report & financial audit
First CARE yearly meeting DESY 2.-5. November 04 Report about scientific (and administrative, financial) issues Day 1: parallel session of Networks Day 2: parallel sessions of JRA s Day 3+4: Plenary reports This meeting will help us preparing the yearly CARE report requested by EC
http://care04.desy.de
Overlap of JRA-SRF activities in accelerator projects ILC SRF X-FEL TTF, VUVFEL
Orientation of CARE SRF Technology in the accelerator landscape FEL ILC TTF SRF Physics: New material Pushing Hc ERL CARE SRF XFEL EUROTeV EUROFEL