Transcript Document 7438193

PROTON DRIVER
ACTIVITIES AT CERN
HIP WG and SPSC (Villars) recommendations
 Next Steps
 Progress of Linac developments
 Status of external contributions
 Planning:

Events in 2005 – Joint workshop with H3 & BENE
 Global planning

R. Garoby
BENE meeting
March 17, 2005
HIP WORKING GROUP
AND
SPSC (VILLARS)
RECOMMENDATIONS
R.G.
2
17/03/2005
HIP WG: long term alternatives
INTEREST FOR
Present
accelerator
Replacement
accelerator
Linac2
Linac4
PSB
LHC
upgrade
n physics beyond
CNGS
RIB beyond
ISOLDE
Physics with k and
m
50 160 MeV
H+ H-
+
0 (if alone)
0 (if alone)
0 (if alone)
2.2 GeV RCS* for
HEP
1.4  2.2 GeV
10  250 kW
+
0 (if alone)
+
0 (if alone)
2.2 GeV/mMW RCS*
1.4  2.2 GeV
0.01  4 MW
+
(super-beam, b-beam ?,
n factory)
2.2 GeV/50 Hz
SPL*
1.4  2.2 GeV
0.01  4 MW
+
SC PS*/** for HEP
26  50 GeV
Intensity x 2
++
5 Hz RCS*/**
26  50 GeV
0.1  4 MW
++
1 TeV SC SPS*/**
0.45  1 TeV
Intensity x 2
+++
PS
SPS
Improvement
* with brightness x2
R.G.
++
+
(too short beam
pulse)
0 (if alone)
(super-beam, b-beam, n
factory)
+++
0 (if alone)
0 (if alone)
0
+
0
+++
0
+++
+++
** need new injector(s)
3
++
(n factory)
?
17/03/2005
SPSC Recommendations (p.62)
●
●
ν physics has noble history at CERN
ν physics is in a new golden era
- CERN beginning again pivotal global role
● CNGS commitment to ~ end of decade vital
- 2006 important: COMPASS then CNGS @ end 06
- CNGS crucial up to 2011 (window @ 4.5x1019pot/yr)
- CNGS + COMPASS ? multi-turn xtraction
longer running period
- no compelling case for extending CNGS beyond
2011 @ realisable pot/yr (< ~ 3x 4.5x1019pot/yr)
R.G.
4
17/03/2005
SPSC Recommendations (p.63)
●
Future neutrino facilities offer great promise for fundamental
discoveries (such as CP violation) in neutrino physics, and a post-LHC
construction window may exist for a facility to be sited at CERN.
●
CERN should arrange a budget and personnel to enhance its
participation in further developing the physics case and the technologies
necessary for the realization of such facilities. This would allow CERN
to play a significant role in such projects wherever they are sited.
●
A high-power proton driver is a main building block of future
projects, and is therefore required.
●
A direct superbeam from a 2.2 GeV SPL does not appear to be the
most attractive option for a future CERN neutrino experiment as it does
not produce a significant advance on T2K.
●
We welcome the effort, partly funded by the EU, concerned with the
conceptual design of a β-beam. At the same time CERN should support
the European neutrino factory initiative in its conceptual design.
R.G.
5
17/03/2005
SPSC Recommendations (p.95)
●
fixed target physics at CERN
- > 2011: physics must be vibrant, important, leading
ion+ion ≥ 2009 (synergy with LHC)
rare flavour ≥ 2009 (synergy with LHC)
fundamental physics with p- atoms
hadron structure: GPDs … if appropriate ?
dynamics: low energy, resonance
ν physics: evaluation & R&D @ CERN
p-driver  superbeam  detector
global context  NF
synergies
with other
science?
SPL?
R.G.
All but HI benefit from/require high intensity
RCPSB RCPS …
6
17/03/2005
NEXT STEPS
R.G.
7
17/03/2005




Implications of SPSC Villars’s recommendations for the AB department are
being sent to the Research Board
Special INTC meeting (Villars – Oct. 2005)  new set of recommendations
Creation of an accelerator team to elaborate scenarios
Accelerator studies in the frame of:



R.G.
CARE [EU supported Integrated Activity: “Coordinated Accelerator Research in Europe” including networks (BENE:
“Beams for European Neutrino Experiments”, H3: “High energy, High intensity, High brightness” accelerators) and the
Joint Research Activity HIPPI: “High Intensity Pulsed Proton Injectors”]
LHC upgrade studies
EURISOL Design Study [EU supported]
8
17/03/2005
Personal comments

In the short/medium term (~ 2010): shortage of proton beams for the approved users
(worse if their expected upgrades are taken into account…) and risk with beam loss /
hardware activation
 Need for:



implementing improvements as soon as possible
arbitration between users…
In the long term = Future of proton accelerators at CERN

LHC will operate until ~ 2020
 Consolidation + LHC upgrade

LHC will always be a part-time user of the injector complex
 Other physics programmes can be covered if they are compatible
with LHC needs. On
top of value for science, synergy will be an important parameter.
R.G.
9
17/03/2005
PROGRESS OF LINAC
DEVELOPMENTS
R.G.
10
17/03/2005
Stages
Three stages are planned:

Stage 1: 3 MeV test place
 development and test of linac
equipment, beam characterization

Stage 2: Linac4


New linac replacing the
present injector of the PS
Booster (Linac2)
Front-end of the future SPL
 improvement of the
beams for physics
(higher performance
and easier operation for
LHC, ISOLDE etc.)

Stage 3: SPL


New injector for the PS, replacing the PS Booster
New physics experiments using a high proton flux
 improvement of the beams for physics and possibility of new experiments
R.G.
11
17/03/2005
Stage 1: 3 MeV test place
In construction. To be operational in 2007.
(RFQ from France,3 MeV chopping line from CERN).
Chopper structure
H- ECR ion source
IPHI RFQ
Bunching cavities
HV pulsed power supplies
for the LEP klystrons
The 3 MeV test stand
will become the frontend of Linac4 and SPL
R.G.
Beam Shape
and
Halo Monitor
H- beam
HV switch unit
Pulser
Computer
Water cooler x2 channels
X-axis translator
12
17/03/2005
REQUEST
1. COST ESTIMATE FOR THE 3 MEV TEST PLACE
The preparation of a realistic cost estimate has started in September 2004. After a few
iterations to minimize the expenses (e.g. a single klystron will be installed because the
RF tests of the accelerating structures for Linac4 will take place in SM18) and to
spread them evenly over the years, the outcome is now available (see annexed table).
This analysis assumes that the klystron power supply is delivered “free of
charge” by India and the third buncher by China.
The resulting figures (kCHF) are summarized in the following table:
o the “Expenses” are the estimated amounts needed. It does not take into
account the carry-over from 2004 to 2005 which is unknown today (estimate
on January 27: ~ 280 kCHF).
o the “Allocated budget” is what is presently foreseen for the linac
developments.
o the “Difference” is the missing amount.
Expenses
- Allocated budget
Difference
2005
747
400
347
2006
854
400
454
2007
549
400
149
Total
2150
1200
990
Considering that the present estimate is still an approximation, an additional amount
of 400 kCHF per year is requested to allow completing the 3 MeV test for the end
of 2007. This will bring the budget for linac developments at the level of
800 kCHF/year during the years 2005-2007. This includes means to pursue with other
developments for Linac4 in the course of 2007
R.G.
13
+ “warning” of additional needs for:
• H- source (mid-2005)
• full equipment of Alvarez tank 1 with
PMQs (end 2005)
17/03/2005
Stage 2: Linac4
160 MeV Normal-Conducting linac to be built during 2007-2010.
New injector for the CERN booster synchrotron, to improve the beam delivered to the
LHC, ease operation, reach the ultimate luminosity, and increase the flux to ISOLDE.
95 keV
Hsource LEBT
3 MeV
RFQ
40 MeV
chopper line
DTL
90 MeV
160 MeV
CCDTL
SCL
352 MHz
704 MHz
transfer line to PSB
86 m
SCL Cells
Bridge
Coupler
View of the assembled DTL
Beam
2.5b
Quadrupole
Coupling Cells
Numbers of ports :
- 6 for tuning plungers
- 6 for pick – ups
- 5 for post – couplers
- ? for RF – couplings
- ? vacuum system
CF – 100
CF – 100
CF – 63
CF - ?
CF - 250
Linac4 (~90m) will be located in an existing
experimental hall and will re-use LEP RF equipment
(klystrons etc.).
R.G.
14
17/03/2005
Stage 3: SPL
Ion species
H-
Kinetic energy
3.5
GeV
Mean current during the
pulse
30
mA
Mean beam power
4
MW
Pulse repetition rate
50
Hz
Pulse duration
0.76
ms
Bunch frequency
352.2
MHz
Duty cycle during the pulse
62 (5/8)
%
rms transverse emittances
0.4
p mm mrad
Longitudinal rms emittance
0.3
p deg MeV
R.G.
 4 MW beam power to an RIB
and/or a neutrino facility via an
accumulator.
 high-brightness low-power beam
to the LHC via the PS & SPS
synchrotrons.
15
17/03/2005
IPHI-CERN
COLLABORATION
(MEETING January 27 & 28 @ CERN)
R.G.
16
17/03/2005
Agenda & Participants
Jeudi 27 janvier (Bdg.6/2-004)
11h00
11h15
11h45
15 mn
30 mn
45 mn
12h30
MATIN
Introduction générale
Etat de la réalisation du bloc d’arrêt faisceau
Compensation de la charge d’espace : récents
développements
DEJEUNER
CEA-Saclay
Pierre-Yves Beauvais
Michel Painchault
Olivier Piquet (27 only)
Michel Desmons
Romuald Duperrier (27 only)
Vincent Hennion
J.P. Delahaye
M. Fruneau
R. Duperrier
Jeudi 27 janvier (Bdg.6/2-004)
14h00
14h25
14h50
15h10
15h35
15h55
16h05
16h30
17h00
17h20
25 mn
25 mn
20 mn
25 mn
10 mn
25 mn
30 mn
20 mn
30 mn
APRES MIDI
Proton linacs at CERN
Etat d’avancement de IPHI
Status of preparation of the 3 MeV test place
Mécanique IPHI
Pause café
Tests RF du 1er tronçon
Nouveau design des entrées RF
Tests d’étanchéité du 1er tronçon
Beam dynamics in the 3 MeV pre-injector
Etat d’avancement de la ligne diagnostics
IPN-Orsay:
Daniel Gardes
Philippe Lavocat (28 only)
Alex Mueller
Nelly Rouviere
Michel Fruneau (27 only)
Patrick Ausset
Maurice Solal
Laurent Vatrinet
R. Garoby
P.Y. Beauvais
C. Rossi
M. Painchault
O. Piquet (M. Desmons)
O. Piquet (M. Desmons)
N. Rouvière
E.Sargsyan (A.Lombardi)
P. Ausset
CERN:
L. Arnaudon (28 only)
F. Caspers
J.P. Delahaye (27 am only)
R. Garoby
K. Hanke
M. Hori
D. Kuchler
A. Lombardi
F. Lenardon
A. Millich
M. Paoluzzi
U. Raich
C. Rossi
E. Sargsyan
R. Scrivens
T. Steiner
M. Vretenar
Vendredi 28 janvier (AB Auditorium 1 – Bdg.354/1-001)
9h00
15 mn
9h15
15 mn
9h30
9h45
10h00
10h15
10h30
11h00
11h15
11h30
11h45
15 mn
15 mn
15 mn
15 mn
12h00
12h30
R.G.
15 mn
15 mn
15 mn
15 mn
MATIN
Les moniteurs de position de la ligne
diagnostics
Résultats des premiers essais du Wire
Scanner avec le faisceau SILHI
PUs or transformers in the chopper line ?
Status of BSHM development
Status & plans for an H- source
Status of bunchers’ development
Pause café
Solid-state chopper driver
Chopper structure: recent developments
Klystrons interlocks and RF controls
Organisation du transfert d’équipements
IPHI au CERN
Discussions / approfondissement
DEJEUNER
M. Solal
P. Ausset
F. Lenardon
M. Hori
D. Kuchler
A. Millich
M. Paoluzzi
F. Caspers
L. Arnaudon
C. Rossi
17
17/03/2005
RFQ construction planning
R.G.
18
17/03/2005
Main outcome







R.G.
All talks are on EDMS (document number 554659 )
Planning is tight. Feasible but no margin for drift.
Apart from the RFQ, construction of equipment and installation of
the test place in Saclay are progressing satisfyingly.
On the CERN side, preparation of hardware is advancing,
although with delay due to priority of LHC in the workshop. Great
hopes on the solid-state chopper driver and BSHM.
RFQ construction is on the critical path. CERN brazing workshop
will have to braze all sections within 9 months ! First section to be
brazed in the middle of March.
Vacuum testing of the existing RFQ section shows weaknesses.
Will be repeated in a joint effort bewteen CERN & IN2P3
specialists. Crucial for deciding upon its acceptance at CERN…
Next meeting will be organized by IPNO in September/October.
Main item will be the progress with RFQ construction.
19
17/03/2005
ISTC PROJECTS
R.G.
20
17/03/2005
ISTC project #2875
BINP (Novosibirsk) + VNIITF (Snezinsk)






R.G.
Development of the technological basis for serial production of CCDTL
structures in the energy range of 40-100 MeV for the SPL project.
Feasibility study of effective application of normal conducting SCL
structures up to the energy of 150-180 MeV.
Cost: k$ 550
Approval: October 2003
Prototype of CCDTL structure to be delivered at CERN for high power
testing at end 2006.
Technological model of SCL structure to be tested in 2006.
21
17/03/2005
ISTC project #2888
ITEP (Moscow) + VNIIEF (Sarov)
Development of the technological basis for construction of AlvarezView of thestructures
assembled for
DTLthe room-temperature part of the
type accelerating
CERN SPL project.
PMQ
Alvarez tank





R.G.
Cost:
k$of ports
650: - 6 for tuning plungers
Numbers
CF – 100
Approval date:- 6February
for pick – ups 2005 CF – 100
Prototype of DTL
at CERN for high power testing
- 5 forstructure
post – couplers to be
CF –delivered
63
by the end of 2006.
- ? for RF – couplings
CF - ?
One drift tube -complete
Magnet Quadrupole (PMQ) included
? vacuum systemwith Permanent
CF - 250
in DTL prototype.
22
17/03/2005
ISTC project #2889
IHEP (Protvino) + VNIIEF (Sarov)




R.G.
Design and manufacture of DTL-RFQ focusing and accelerating
structure prototype for a 3-40 MeV H- linac of the SPL project
Cost: k$ 650
Approval date: February 2005
Prototype of RFQ-DTL structure to be delivered at CERN for high power by
the end of 2006.
23
17/03/2005
EURISOL DESIGN STUDY
(Meeting February 3, Orsay)
R.G.
24
17/03/2005
Coordination Board
AGENDA
1.
Introduction by the Project Leader:
a) Status of the Project, the EC Contract and the Consortium Agreement;
b) Description of the role of Coordination Board and other bodies of the Consortium.
2.
Planning of tasks as agreed in the Annex to the contract.
3.
Start-up of the various tasks, including:
i) detailed planning for the year 2005;
ii) requirements for financial and human resources.
(15-minute presentation by each task leader**):
Task 1:
Task 2:
Task 3:
Task 4:
Task 5:
Task 6:
Task 7:
Task 8:
Task 9:
Task 10:
Task 11:
Task 12:
4.
R.G.
Management of the EURISOL DS: Project Leader
Multi-MW Target Station - H. Ravn (CERN)
Direct Target - J. Lettry (CERN)
Fission Target - L. Tecchio (INFN-LNL)
Safety & Radioprotection - D. Ridikas (CEA)
Heavy Ion Accelerator Design - M-H. Moscatello (GANIL)
Proton Accelerator Design - A. Facco (INFN-LNL)
Cryomodule Development - S. Bousson (CNRS/IN2P3)
Beam Preparation - A. Jokinen (JYV)
Physics & Instrumentation - R. Page (U. Liverpool)
Beam Intensity Calculations - K-H. Schmidt/A. Kelic (GSI)
Beta-Beam Aspects - M. Benedikt (CERN)
Synergies with the HIPPI JRA
Synergies with the BENE Network
(R. Garoby, 10 minutes)
(V. Palladino, 10 minutes).
25
17/03/2005
Main outcome

Description







Technical goals (main):





CW driver for proton + ions up to q/E0 = 1/3
Targets (Direct & Fission) development
Radio-protection
Beta-beam (up to 100 MeV/u)
Relevance for us:



R.G.
“Engineering oriented study”.
Total cost: 32 MEuros + 490 m.y
EC contribution: 9.16 MEuros + 113 m.y
12 Work Packages
20 participants
Starting date: 1/02/2005 – Duration: 4 years
Overlap on proton driver developments (HIPPI = pulsed!)
Welcome contribution to work on targets & beta beams
Need for close connection (crossed participation in events) to avoid
duplication and share benefits of developments
26
17/03/2005
LINAC PLANNING
R.G.
27
17/03/2005
Events in 2005
Jan.
Feb.
March
April
May
June
July
Aug.
Sept.
Oct.
Nov.
Dec.
CARE & HIPPI
27 & 28
Frascati
2 &3
CERN
CSC meetings
Workshop WP2
13 & 14
INFN-Mi
Workshop WP3
13 &14
RAL
14 & 15
RAL
Workshop WP4
Workshop WP5
28 till 30
RAL
HIPPI yearly meeting
23 till 25
CERN
CARE yearly meeting
Other workshops
20 till 24
Frascati
with BENE (CARE)
with H3 (CARE)
???
Erice
???
23 till 25
FNAL
High Power SC Linac
Technical meetings
10
CERN
15
CERN
DTL Task Force
CDR-2 team
Other collaborations
IPHI-SPL
27 & 28
CERN
???
IPNO
18 till 22
Sarov &
Snezinsk
ISTC
China
???
Beijing
Miscellaneous
16 till 20
PAC05
Knoxville
USA
R.G.
28
17/03/2005
CERN DG’s talk to the staff on 10/01/2005 (1)
The following strategic orientations are proposed for CERN activities in 2004-2010:
R.G.
1.
to keep the utmost priority for the completion of the LHC project, and strive for a start of
operations in the summer of 2007;
2.
to fulfil commitments previously made by CERN: CNGS, EGEE;
3.
after an in-depth risk analysis review, to mitigate the consequences of failure of old equipment
that is necessary for reliable LHC operation. i.e. Consolidation;
4.
along the conclusions of SPSC Villars meeting, to prepare for 2006 and beyond a few new fixed
target experiments, highly praised for their new physics potential outputs;
5.
in line with the new policy by the European Commission for structuring the European Research
Area, by promoting the coordination of laboratories in matters of R&D and new infrastructure
(FP6 – CARE programme), to launch in the period 2004-2006 different studies in cooperation
with other laboratories;
29
17/03/2005
CERN DG’s talk to the staff on 10/01/2005 (2)

Their primary goal would be:

to develop detailed technical solutions for a future LHC luminosity upgrade to be
commissioned around 2012-2015;




R.G.
Definition of the Linac4 (160 MeV-H-), in relation with the European Programme for a High
Intensity Pulsed Proton Injector (HIPPI)
Definition of modifications to the magnets in the interaction regions at two crossing points of the
LHC beams, linked with the European programme Next European Dipole (NED), aiming at 15
Tesla
Definition of new trackers for the upgrade of the ATLAS and CMS detectors, to withstand a factor
10 higher luminosity.
to keep in touch with other design studies launched in Europe, of EURISOL and
neutrino factories;
30
17/03/2005
CERN DG’s talk to the staff on 10/01/2005 (3)
Milestones …
R.G.
7.
in 2006-2007, to decide on the implementation of the Linac 4 and
any increased R&D programme, depending on new funds made
available and on a new HR policy;
8.
in 2009-2010, to review and redefine the strategy for CERN
activities in the next decade 2011-2020 in the light of the first
results from LHC and of progress and results from the previous
actions. The possible choices are at present quite open. The future role
of CERN will depend on these choices and their effective funding;
31
17/03/2005
Global planning
RF tests in SM 18 of
prototype structures*
for Linac4
3 MeV test
place ready
Linac4
approval
SPL
approval
CDR 2
R.G.
32
17/03/2005