Leading the Way? - DESY€¦ · Novel Accelerator R&D Leading the Way? >Accelerator R&D is not...

R. Assmann

Leading Scientist DESY

EuCARD2 Workshop

Goethe University

Frankfurt, 1.10.2014

Advanced Accelerator R&DLeading the Way?

Ralph Aßmann | EuCARD2 WS | 1.10.2014 | Page 2

Novel Accelerator R&D Leading the Way?

> Accelerator R&D is not leading the way! .

> Advantages in must be shown and are the outcome of this research.

> We perform accelerator R&D in Helmholtz as an : academic studies are explicitly allowed.

> Some directions can fail but . These directions will change the way we design and build

some of our accelerators.

> We know that some ideas can provide huge returns!


From University Stockholm to the Laboratories…

> 1924: (*19 February 1883 in Finja,

Sweden, † 5 February 1960 in Danderyd, Sweden),Prof. at the technical university Stockholm, publishes in 1924 idea how to realize multiple acceleration of an ion with a given high voltage: Utot >> UHV


First Realization: Wideröe’s PhD in 1927 at Univ. Aac hen

27 pages


Wideröe

Idea 1: switch high voltage

Total energy gain >> available high voltage

First short ion linac!

Idea 2: Circular acc.

Did not work in Wideröe’s thesis due to stability issues


Cyclotron and Lawrence Berkeley National Laboratory …

90 Citations

The Nobel Prize in Physics 1939 was awarded to Ernest Lawrence "for the invention and development of the cyclotron and for results obtained with it, especially with regard to artificial radioactive elements".


Particle Accelerators – 90 Years Success

> Today: About 30,000 accelerators in the world

> Used for science, medicine and industry


Livingston: “Human-Made” Accelerators at the Energy Frontier


We are not at the Limit: The Real Energy Frontier…

> Ultra–high-energy cosmic rays—mainly protons or heavier atomic nuclei. From 2008 to 2013:

72 cosmic rays with energies above 57 exa-electron volts1 exa-eV = 1018 eV = 1 million TeV

> “Oh-My-God particle.”

> How does nature do it?

� Neutron stars as accelerators?

� Galactic jets acting as Zevatrons?

� Extragalactic supermassive black holes?

� Decay of superheavy dark matter by means of the Penrose process?

� …





Advent of plasma acc.:

1. Metallic cavity walls replaced with plasma walls � overcoming hard physical limits of metallic RF structures.

2. Acceleration lengths (same energy) are factor 100 – 1000 shorter. Multi-GeV e-beams proven.

3. Still short-comings but no fundamental limit .

4. Technology for a Plan B project in the 2030’s !?


Long-Term Application 1: Compact linear collider


Linac CoherentLight Source

Kilometer-scale X-ray FEL

Zone platesample

Pin hole

Beam stopCoherent X-ray

X-ray Holography Microscope

Long-Term Application 2: Laser-driven compact X-ray FEL

Visualization by T. Tajima, 2010


High Fields? Lasers!

Note that power P is the peak power!

Now we can buy 1 PW lasers!

LBNL laboratory

Transverse electrical field


Reminder: Plasma-Acceleration (Internal Injection)



- + -




Famous Accelerator Paper 1979: 3162 Citations

> Idea: Use a plasma to convert the transverse electrical field of the laser into a longitudinal electrical field in the plasma!


Famous “Unkown” Note 1985: Not in citation index…

> Idea: Beam Loading to Flatten Wakefield

> Author: Simon van der Meer – CLIC Note No. 3, CERN/PS/85-65 (AA) (1985).

> Shape the electron beam to get optimized fields in the plasma, e.g. minimize energy spread.

> Study: Tom Katsouleas.

Katsouleas, T., et al. Beam Loading in PlasmaAccelerators. Particle Accelerators, 1987, Vol. 22,pp. 81-99 (1987)



> Idea: Generate e- beams from the plasma electrons

> Authors: A. Pukhov, J. Meyer-ter-Vehn

> Rejected by high impact journals.

> Nature publications on the subsequent experi-mental verifications of this theory…





5 PW laser and LWFA

area

High stability LWFA

Comb beam ��high efficiency

LWFA for FEL

LWFA for science (FEL, …)

10 – 200 PW laser, also for LWFA (finally

100 GeV?)

FEL R&D for LWFA ICAN for high

efficiency

Proton-driven PWFA


LWFA FEL

e- driven PWFA

PWFA modulation

Ion plasma acc. and transport

plasma wakefieldimaging

Two 1 PW laser, ion/p plasma acc., radiation therapy

R&D

LWFA, polarized particles

LWFA, medical imaging, training

LWFA low density, external inj.

atto-s radiation sources

LWFA for radiation sources

FEL, industrial applications,

PWFA


The EuPRAXIA Project Proposal

Reinhard Brinkmann | Director Accelerator Division | Accelerator R&D | EuCARD2 Meeting, DESY19 May 2014 | page 26

GERMANY – Research Field Matter: new programmestructure

Matter andthe Universe

FundamentalParticles and Forces

Cosmic Matterin the Laboratory

Matter and Radiationfrom the Universe

In-House Research on theStructure, Dynamics and

Function of Matter atLarge Scale Faciltities

Facility Topic:Research on Matter with

Brilliant Light Sources

Facility Topic:Neutrons for Researchon Condensed Matter

Facility Topic:Physics and Materials

Science with Ion Beams

AcceleratorResearch and Development

DetectorTechnologies and Systems

From Matter toMaterials and Life

Matter andTechnologies

Facility Topic:Research at Highest

Electromagnetic Fields

PAGE 26 Review of the Research Field Matter

LK II„performance category II“= user operation of large

scale facilities

Helmut Dosch

Evaluation for the programme oriented funding 2015 – 19 in

the research field Matter was recently

completed

Hamburg, 28/04/2015

Helmholtz Distributed ARD Test Facility

27

SEITE 28

BERLinPRO FLUTE SINBAD

JENA

LIGHT

AMTF

FLASHForward REGAE

ARD ST3PITZ

LUX

FLASH

E-XFEL SRFCW

JUSPARC

ELBE

ExistingFlagship

Project(s)

BESSY VSR

SC RF Technology

(to CW)

SEITE 29


JENA

LIGHT

AMTF

FLASHForward REGAE

ARD ST3PITZ

LUX

FLASH

E-XFEL SRFCW

JUSPARC

ELBE

e-plasmaInjector

KIT…

Plasma FEL

DESY…

Medical ImagingUni HH…

NEW - PROPOSED

FlagshipProject 1

ExistingFlagship

Project(s)

BESSY VSR

e- plasma accelerator

Plasma LC

SC RF Technology

(to CW)

HAMBURG

SEITE 30


JENA

LIGHT

AMTF

FLASHForward REGAE

ARD ST3PITZ

LUX

FLASH

E-XFEL SRFCW

JUSPARC

ELBE

e-plasmaInjector

KIT…

Plasma FEL

DESY…

Biol./Med.

Time-resolved plasma diagno-stics, material

R&D

Pol. Beams (n)


NEW - PROPOSED

FlagshipProject 1

ExistingFlagship

Project(s)

BESSY VSR

NEW - PROPOSED

FlagshipProject 2


p/ion plasma

accelerator

Plasma LC

SC RF Technology

(to CW)

HAMBURG DRESDEN

SEITE 31


JENA

LIGHT

AMTF

FLASHForward REGAE

ARD ST3PITZ

LUX

FLASH

E-XFEL SRFCW

JUSPARC

ELBE

e-plasmaInjector

KIT…

Plasma FEL

DESY…

Biol./Med.

Time-resolved plasma diagno-stics, material

R&D

Pol. Beams (n)


ExistingFlagship

Project(s)

BESSY VSR

NEW - PROPOSED

FlagshipProject 2


p/ion plasma

accelerator

Plasma LC

SC RF Technology

(to CW)

HAMBURG DRESDEN

Plan to ask for strategic investment funding for Helmholtz distributed ARD test facility.Universities included as external partners with work package responsibility.

NEW - PROPOSED

FlagshipProject 1


Short INnovative B unches & A ccelerators at Desy

50 as, ICS

ERC Synergy Grant 14 M€, DESY, Uni HH, Arizona

< 1 fs with conven-tional technology

ARD, DESY, Uni HH, KIT

> 1 GeV/m, useable beam quality, FEL?

LAOLA, ARD, DESY, Uni HH

Third party funding, interest from ELI, …

ARD top class research in existing infra-structure(discont-inuedDORIS)

Footprint: 90 m x 50 m


Hamburg “Plasma” Collaboration – Lot’s of Students

Wismar, Germany, 2012

= DESY Hamburg+ DESY Zeuthen/Berlin+ Uni Hamburg + Friends


Part of Helmholtz ARD Team – Dresden 25.2.2014



Accelerator on a Chip 2013: 28 Citations

> Use dielectric structure to couple laser fields to electron beam.

> Recent progresses in the US.

> Funding support from EU…


Synergy from the Start of R&D Onwards

, based on new, laser-driven accelerator technology. Research on the photo-system.

� Laser science (F. Kärtner, DESY/Uni HH)

� Spectroscopy light sources (H. Chapman, DESY/Uni HH)

� Biology (P. Fromme, Uni Arizona)

� Accelerator science (R. Aßmann, DESY)

> The only accelerator-related ERC synergy grant.Funding: 14 M€ over 6 years (2014 – 2020)

> Will be set up at DESY in the context of the multi-purpose accelerator research facility SINBAD (part of the Distributed ARD test facility).


AXSIS Atto-Second Light Source (Obsolete Version)


Some Observations I

> Novel accelerators are about new ideas, building new machines and doing new science.

> Every y. It is often heavily criticized and not believed in.

> These ideas .

> Often create this academic environment for nurturing new ideas from young scientists.

> Big and not interested in an academic environment. There are exceptions: See S. v.d. Meer or the ARD program � Accelerator R&D as own research field.

> The field requires , independent of project-related pressures and

requirements. Must maintain this!


Some Observations II

> Advanced accelerator work is often on !

> This kind of work to our field. They later want to build what they invent � influx to projects!

> Novel and innovative studies � excellent for the institutes and the scientists!

> Novel accelerators are in a promising and at the same time critical phase of their development – the next 10 years should be very interesting.


Wideröe 1992 at age 90

After all,

.

are not subject to any such considerations. The

.

The with regard to accelerating particles by electromagnetic means (i.e. within the scope of the Maxwell equations which have been known since the 19th century), , and technology surprises us almost daily with innovations which in turn allow us to broach new trains of thought.

…there are yet to be made. They could allow us to advance to

.

LUNCH

COFFEE

BREAKFASTDINNER

DISCUSSIONS

TALKS

2nd EAAC 2015Sep. 13-20, 2015

Isola d’Elba

Wave breaking

http://agenda.infn.it/event/EAAC2015


Thank you for your attention…

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