1 clic workshop 2015, 26 – 30 january 2015 gerardo d’auria_elettra-sincrotrone trieste the xbfel...
Post on 21-Dec-2015
224 Views
Preview:
TRANSCRIPT
11CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The XbFEL Project (X-band technology for FELs)
G. D’Auria(Elettra – Sincrotrone Trieste)
On behalf of the XbFEL collaboration
22CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
Outline
Short overview of the XbFEL Project• The XbFEL Collaboration
• Motivations for using X-band technology
• Objectives
• Concept and approach
• RF module
Present activities
Future plans
Concluding remarks
33CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The X-band technology for FELs (XbFEL)
is a project submitted for EU funding in September 2014 to
HORIZON2020 - Work Programme 2014 – 2015
Research & Innovation Action (RIA)
INFRADEV-1-2014 Design StudiesThe specific challenge and the aim of this activity is:
“to support the conceptual and technical design and preparatory actions forNew Research Infrastructures,
or Major upgrades of Existing Infrastructures”
The XbFEL Project
Topic TitleRegist.
(incl. drafts)Submitted Eligible
RequestedEC contrib.
AvailableEC budget
INFRADEV-1-2014 Design Studies 85 39 37 € 91.656.002 € 15.000.000
~ 5-6 proposals funded
Call numbers:
44CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The evaluation process has been based on the three main sections of
the proposal: Excellence, Impact and Implementation, with the score
in the range 0-5.
We got:
• Excellence → 4 (very good)
• Impact → 4 (very good)
• Implementation → 5 (excellent)
Given the budgetary resources available under the call
Not enough to be funded!
Evaluation process
13 in total
55CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
ST Elettra - Sincrotrone Trieste, Italy.CERN CERN Geneva, Switzerland.JU Jagiellonian University, Krakow, Poland.STFC Daresbury Laboratory Cockcroft Institute, Daresbury, UKSINAP Shangai Institute of Applied Physics, Shanghai, China.VDL VDL ETG T&D B.V., Eindhoven, Netherlands.OSLO University of Oslo, Norway.IASA National Technical University of Athens, Greece.UU Uppsala University, Uppsala, Sweden.ASLS Australian Synchrotron, Clayton, Australia.UA-IAT Institute of Accelerator Technologies, Ankara, Turkey.ULANC Lancaster University, Lancaster, UK.
XbFEL is a collaboration among several laboratoriesaimed at promoting the development of X-band technology for FEL
based photon sources.
XbFEL Collaboration
66CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The X-band technology has demonstrated the possibility
to operate at gradients higher than 100 MV/m with an
Ea > 100 MV/m and a BDR/m < 3 x 10-7.
This has multiple advantages for the FEL users
community:
• very compact Normal Conducting Linacs, significantly cheaper
than superconducting machines
• higher efficiency
• costs reduction
• possibility to go to a high repetition rate (up to kHz regime).
Why X-band technologyWhy X-band technology
77CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
FERMI FEL Elettra – Sincrotrone Trieste• Linac energy increase → FEL shorter wavelenghts (≤ 1 nm)• Possibility to operate with two linacs at the same time (two e-beam pulses at
different energies) Ankara University (Turkish X-ray FEL)
• 6 GeV linac → FEL wavelengths 0.1-10 nm• Possibility to operate at high rep rate (up to 500 Hz)
Australian Synchrotron (AXXS–Australian X-band X-ray Source)• Plans for a 6 GeV linac
SINAP Shangai • Proposal for hard X-FEL (6.5 GeV) submitted to Chinese government.
STFC• CLARA FEL Test Facility (Ultra short pulse generation). An S-band linac module
(Linac 4) will be replaced with an X-band module as test bed for this technology on FELs.
CERN• CERN has no direct interest in Synchrotron Light Sources and FELs, but the activities
on XbFEL will have strong return value for the CERN CLIC project: i.e. accelerator and RF components optimization, further technical developments with industry, costs reduction, etc.
Interests for X-band FELs_I
88CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
A long-term interest also exists for:
Jagiellonian University_Polish Synchrotron Light Source SOLARIS• Solaris linac energy increase 600 MeV → 1.5 GeV, allowing full energy
injection without any additional costly civil engineering.• Long-term development of a compact VUV - Soft X-ray HGHG.
Oslo University • The possibility for a compact FEL based on X-band technology has been
presented to the Norwegian light source user community. Several scientists have shown interest for a National Facility.
Uppsala University
National Technical University of Athens
Lancaster University
Interest for X-band FELs_II
99CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The demand for new FEL facilities is worldwide continuously
increasing, spurring plans for new dedicated machines. This led to
a general reconsideration of costs and spatial issues, particularly
for the hard X-ray sources, driven by long and expensive multi-GeV
NC linacs.
For these machines the use of X-band technology can greatly
reduce cost and capital investment, reducing the linac length and
the size of buildings, opening the way to the construction of a
multitude of affordable “Regional Facilities”.
Interest for X-band FELs_III
1010CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
FERMI Upgrading schemeFERMI Upgrading scheme
12
1.5 GeV 4-80 nm
3.5 GeV < 1 nm
S-band linactwo e-bunches/RF pulse
HF bunchseparator
Two separate linacs at 50 HzS-band → 1.5 GeVX-band → 3.5 GeV
1111CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
• The XbFEL project intend to validate the use of the X-
band technology for the construction of the future FEL
based photon sources.
• This will be pursued designing, assembling and testing
an X-band accelerating module that can be used as a
baseline element for new FEL facilities or the upgrading
of existing ones.
XbFEL objectivesXbFEL objectives
N.B. For the technology development and dissemination of the results, the project will be
carried out in close collaboration with industry (VDL), member of the consortium.
1212CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
XbFEL_Concept and approach
To reach the XbFEL objective, three different FEL schemes will be
considered:
1. a green field hard X-ray FEL
2. a green field soft X-ray FEL
3. an upgrade of an existing FEL facility
With the specific goals to:
a. Develop CDRs for the three different scenarios mentioned above
b. Identify and develop a common RF unit for the linacs (RF accel.
struct., components, etc.)
c. Build and test prototypes of the key components.
d. Promote the capability of industry to provide such components.
1313CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
RF phase advance
2π/3 3π/4
a/lambda 0.145 0.145
d/h 0.1313 0.1
Pt 401 MW 401 MW
Ls 1 m 1 m
# klystrons 10 10
# structures 10 x 4 = 40
10 x 4 = 40
a 3.62 mm 3.62 mm
d 1.09 mm 0.937 mm
vg/c 3.75 % 3.29%
tp 90 ns 102 ns
Qe 18000 19000
Constant Impedance Accelerating Structure with input power coupler only
A. Grudiev, HG2013 workshop
X-band module layoutX-band module layout
P CRF load
Klystron
Pulse compressor
Hybrid
HV Modulator
1414CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
Present activitiesPresent activities
At present the Collaboration activity is focused on a bi-weekly
Web meeting, “the X-band FEL parameters meeting”, organized
by D. Schulte, A. Latina and myself, where relevant topics on X-
band FEL developments are presented and discussed.
Recent issues (Dec. 18, 2014):• Bunch Compression Schemes for X-band FELs, T. Charles, Australian
Synchrotron- Monash University• Sensitivity studies for X-band FEL design, Tasos Charitonidis (NTUA)• Planned Oslo work in the XbFEL collaboration, Erik Adli, Oslo University
Recently we have also discussed about the possibility to use the
CALIFES linac for X-band FEL beam studies and developments.
1515CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
430 kV modulator
50 MW Klystron
RF Pulse compressor LLRF
Vacuum controllers
Future plans IFuture plans I
The road map is already defined and,
after the signature of the EU Grant
Agreement (May – June 2015), the
project will start with the activities
already planned in the XbFEL
workplan (July 2015 - June 2018).
Two possible scenarios for the near future:
a) The project is fundedX
N o t f u
n d e d
1616CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
430 kV modulatorRF Pulse compressor LLRF
Vacuum controllers
Future plans IIFuture plans II
b) The project is not funded
It would be extremely
important to keep the
XbFEL collaboration “alive”
and the working group on
the X-band technology
development for FEL active.
• Continue the periodic Web meetings, to strengthen the collaboration, fostering further developments of X-band technology.
• Define a reduced work program (i.e. extracted from the workplan already submitted to EU).
• Organize dedicated meetings/workshops, (may be twice per year, one during the annual CLIC workshop, the other one in June/July), to define and check the strategic guidelines.
• Continue to work on the X-band module development identifying a baseline solution for FEL applications (accel. struct., RF components, etc).
• Evaluate new funding possibilities and opportunities.
1717CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
Linac design based on FEL users requirements (i.e. wavelength
range, energy per pulse, pulse duration, pulse structure, etc.).
Beam dynamics studies, bunch compressors, deflecting
cavities, bunch spreaders.
Timing and synchronization schemes.
Identify and develop a common hardware solutions for the
accelerating unit.
Component fabrication
RF module assembly and high power tests
Main topics for future activitiesMain topics for future activities
If possible
1818CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
The XbFEL project strongly promote the use of the X-band technology for the future FEL based photon sources.
This would allow the construction of these facilities with a technological solution that is more efficient in terms of costs, space and power than the conventional ones.
The activities on the XbFEL will also have a strong return value for the CERN CLIC project.
Concluding remarks
It is extremely important to maintain the XbFEL Collaboration active
regardless of the EU funding!
1919CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
AcknowledgementsAcknowledgements
My special thanks to the whole XbFEL Collaboration.
In particular:
L. Giannessi, M. Kiskinova, C. Masciovecchio, A. Santelli, Elettra-Sincrotrone TriesteA. Latina, D. Schulte, S. Stapnes, W. Wuensch, CERN, Geneva C. Bocchetta, Jagiellonian University, KrakowJ. Clarke, Daresbury Laboratory Cockcroft Institute, DaresburyW. Fang, Shangai Institute of Applied Physics, ShanghaiX.J.A. Janssen VDL ETG T&D B.V., EindhovenE. Adli, University of OsloE. N. Gazis, National Technical University of AthensM. Jacewicz, R. Ruber, Uppsala University, UppsalaM. J. Boland, Australian Synchrotron, ClaytonA. Aksoy, Ö. Yavaş, Institute of Accelerator Technologies, Ankara, Turkey.G. Burt, Lancaster University, Lancaster
2020CLIC Workshop 2015, 26 – 30 January 2015Gerardo D’Auria_Elettra-Sincrotrone Trieste
HG2015HG2015
The 8th International Workshop on
High-Gradient Acceleration
HG2015this year will be hosted by
Tsinghua University
June 16-19, 2015
top related