BELLA Center: Current Status and Future Plans

BELLA Center: Current Status and Future Plans
Wim Leemans
BELLA Center
Accelerator Technology and Applied Physics Division
Helmholtz VI meeting
September 13, 2015
The program aims at colliders for the HEP mission and
applications with shorter term benefits
Collider
(>20 yrs)
Security Apps
(5-10 yrs)
Gamma Ray
Beams
Lightsource
(5-10 yrs)
Compact FEL
Medical
(5-10 yrs)
Arthroscopic LPA
Laser plasma
accelerator – LPA
(today)
Multi-GeV beams
Laser technology
program
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BELLA Center Program focuses on science and technology for laser
plasma accelerators and applications
+ radiation
à
ebeam
εn=0.1µm
High quality beams
Diagnostics/Radiation sources
BELLA Program
J. van Tilborg et al., PRE 2014
J. van Tilborg et al., Optics Lett 2013
B. Shaw et al., J. Applied Phys. 2013
L. Chen et al., PRL 2012
G. Plateau et al., PRL 2012
A.J. Gonsalves et al., Nature Phys. 2011
W.P. Leemans et al., Nature Phys. 2006
C.G.R. Geddes et al., Nature 2004
Theory/Modeling
C. Benedetti et al., Phys. Plasmas 2014
L.L. Yu et al., PRL 2014
C.B. Schroeder et al., Phys. Plasmas 2013
C. Benedetti et al., Phys. Plasmas 2013
Multi-GeV beams
W.P. Leemans et al., PRL 2014
A.J. Gonsalves et al., PoP 2015
N. Bobrova et al., Phys. Plasmas 2013
C. Benedetti et al., Phys. Plasmas 2012
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Staging, optimized structures
S. Shiraishi et al., Phys. Plasmas 2013
S. Steinke et al., to be submitted
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We are proposing BELLA-i and k-BELLA initiatives as part of the strategic
development of BELLA towards an internationally competitive laser science facility
Area 1
Area 3
Area 2
k-BELLA
New initiative
γ-rays
FEL
Staging
BELLA-i beamline
New initiative
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Area 1 is dedicated to multi-beam experiments for staging
and radiation source development
§  Current set-up:
§  Current set-up TREX laser (50 TW, 10 Hz):
Area 2
Area 1
Area 3
§  Used for first GeV electron beam from LPA
§  Staging and undulator beam lines
§  Deceleration exp. for DNN – active beam dump
Control
DNN gamma-ray
§  Godzilla (10 TW, 10 Hz):
room
source
Staging
§  Used for Dream
Beam – Nature2004
experiment
§  Medical applications
§  Upgrade underway:
§  Dual beam (100 TW + few J in 10 ps) TREX replacement (DNN funded)
New laser
§  Gamma ray source demonstrator
funded by
§  New 100 TW laser (Moore foundation funds)
Foundation
Phase space diagnosis and
§  Staging experiment
control/FEL Beamline
§  Undulator beam line – phase space manipulation and diagnosis,
FEL physics
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Area 2 houses BELLA, (still) highest rep rate PW-laser for
high intensity LPA experiments
•  Petawatt laser operating at
> 42 J in ~30 fs at 1 Hz
~ 55 micron spot
~30 fs
13.5m Intensity ~1.5x1019 Wcm-2
Acc. fields ~10-50GV/m
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We are proposing BELLA-i: a second beamline on BELLA for high intensity lasermatter interaction physics including ion acceleration – user driven science
k-BELLA laser
kW-class ultrafast
γ-rays
FEL
Staging
Plasma mirror
technology for
contrast clean-up
+
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Intensity ~3-5x1021 Wcm-2
Acc. fields ~TV/m
<1m
4-5 micron spot
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Area 3 would house k-BELLA: a high average power (multikW), high peak power laser system for kHz rep rate LPA
Area 2
Area 3
Area 1
§  Discussed in P5 and ARD HEPAP subcommittee reports
§  (Informally) proposed to HEP as next major investment
§  kW-class ultrafast laser: 3 J at 1 kHz, suitable for driving 1
GeV linac at 1 kHz – opens many applications
§  Base technology for laser being developed under
Stewardship grant (joint with LLNL and U. Michigan) as well
as LDRD supported R&D
§  Laser on same level as
BELLA
§  Two parallel caves for
experiments on lower level
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k-BELLA -- Demonstrator for High Average Power LPAs – is
being planned as a user facility with 2 beamlines
§  Preliminary estimate is ~$35 M with 40% contingency
§  Project to be preceded by 2 yr R&D phase to validate base technology
§  Schedule
o  CD0 in FY17
o  CD1/2/3a in Q4 of FY18
o  CD4 in Q3 of FY21
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§  Operating cost for k-BELLA
: estimated
at $3.5
M/yr (note: BELLA ops $2.5M in FY15)
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We are poised to expand BELLA Facility towards Applications,
increase in capability and laying the foundation for a user facility
Science and
Application
User Facility
Multi-GeV e-beams (now)
Positrons
Multi-stages
Ultra-high intensity laser matter
physics, ion acceleration
High rep rate apps
FEL powered LPA
γ-ray source
2019
Staging (now)
>2020
2018
2017
Laser system
2016
2015
TREX (now)
BELLA-X
10 PW
Laser tech R&D
k-BELLA = kW class, 100 TW laser
BELLA-i = BELLA + short focal length beamlines
DNN Laser (>100 TW)
Moore Foundation Laser (>100 TW)
of UNIVERSITY
OF
BELLA longOffice
focal
length(now)
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Summary
§  BELLA facility is up and running and has set new records on laser
performance and electron beam energy (up to 4.3 GeV) from an LPA
§  We are implementing novel concepts to reach 10 GeV, generation of
ultra-cold beams and focusing on stability
§  Staging experiment is producing results
§  New initiatives on γ-ray source, FEL and medical applications have
been launched by obtaining DNN funding, Moore Foundation funding
and LDRD
§  We are proposing
§  BELLA-i as an important addition to the facility
§  k-BELLA as a new facility for high average power applications
§  Discussions started with DOE to make BELLA a user facility
§  Presented at DOE-FES Townhall, July 1, 2015 – white papers available
§  2015 APS-DPP evening meeting and Workshop in January 2016 for community input
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BELLA Center staff (FY14-15)
Scientific Staff:
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Guest Researchers:
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Wim Leemans
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Csaba Toth
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Kei Nakamura
Eric Esarey
Cameron Geddes
Carl Schroeder
!
Jean-Luc Vay
!
Prof. Andy Roberts
!
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Postdoctoral Scholars:
Anthony Gonsalves
!
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Nicholas Matlis
Stepan Bulanov
Carlo Benedetti
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Feng Liu
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Daniel Mittelberger Brian Shaw
Chris Pieronek
!
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Kelly Swanson
Julius Huijts
!
Francesco Rossi
!
Patrick Lee
!
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Samuel Barber
!
Don Syversrud
!
Dave Evans
!
Sven Steinke
!
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Hann-Shin Mao
!
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Mark Kirkpatrick
Tyler Sipla
!
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Nathan Ybarrolaza Greg Mannino
!
Aalhad Deshmukh Art Magana
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Sergei Rykovanov
!
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Alexandre Bonatto
Henri Vincenti
New Postdoc: Sam Barber
New PhD students: Fumika Isono, Blagoje Djordevic
Engineering & Technical Support:
Remi Lehe
Names in blue are at U.C. Berkeley
PhD, Masters, undergrad students:
Joost Daniels
!
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Jeroen van Tilborg
!
Administrative Support:
Joe Riley
Ken Sihler
!
Martha Condon
!
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Wes Tabler
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