THEME02-0-1067-2007/2012

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02-0-1067-2007/2012

Priority:

Status:

In-progress

International Linear Collider:
Accelerator Physics and Engineering

Leader:	G.D. Shirkov
Deputies:	G.V. Trubnikov E.M. Syresin

Participating Countries, Institutes and International organizations:
Armenia, Bulgaria, CERN, Germany, Greece, India, Italy, Japan, Poland, Russia, Slovac Republic United Kingdom, USA.

Scientific Programme:
R&D works in particle accelerator physics and engineering, construction of the free electron laser with the aim to prepare proposals for the project of JINR participation in international collaboration on construction of the International Linear Collider (ILC).

Expected main results in 2011:

R&D works at ILC injector prototype (DC photocathode e-gun): development of technology, manufacturing and studies material properties of thin-film and bulk photocathodes. Studies of the cathode quantum efficiency on the test stand of the prototype ILC complex photoinjector (photocathode e-gun and laser =266 nm, _puls=15 ns).
R&D works at LINAC-800 based test-bench: testing the accelerating units and electron beam diagnostic tools with electron beam (first few accelerating sections). Pre-design and requirements specification for the Free Electron Laser (FEL) based on photo-injector and LINAC-800.
Development of a principal scheme of high-precision metrological laser complex with extended coordinate axis up to 20 km (first stage work).
Participation in development and design works on cryogenic modules for accelerating systems of the linear accelerator. Development of technologies for bimetalic interconnections at RF resonators construction: process refinement for manufacturing of the explosion welded Nb+SS transitions accommodated to real design of cryomodules. Production and full cryovacuum tests of new designed samples.
Continuation of works aimed preparation of the Technical Design Report of the ILC siting in the area of Dubna. Engineering optimization for collider elements location.
Development of technology of electron beam formation for electron cooler of new generation.
Commissioning and development of LEPTA: research of dynamics of the circulating electron beam, injection of the positron beam to the ring, setting of experiments with electron cooling of positrons, generation of Positronium and first experiments with Positronium in-flight. Design of channel for low energy positrons for applied research.
Theoretical and experimental investigation of ion sources and beam dynamics.
The FLASH infrared undulator constructed at JINR is applied for infrared radiation generation and measurements of the electron bunch shapes. Investigation on intense electron beams and FEL physics: experimental work with coherent synchrotron radiation, construction of unit of beam diagnostics of X-ray radiation from FLASH. Conceptual design of two-color laser and construction of its units.

List of projects:
	Project	Leader	Priority (period of realisation)
1.	Preparation of proposals for JINR participation in design, manufacturing and testing of the prototypes of linear collider elements	G.D. Shirkov G.V. Trubnikov	1 (2007-2012)

List of Activities

Activity or Experiment

Leader

Status

Laboratory

Responsible
person

Leading Researchers
and number of participants

Construction of photoinjector prototype

G.V. Trubnikov
N.I. Balalykin

Technical Proposal
Realization

DLNP

A.G. Kobets + 3 pers.

VBLHEP

V.F. Minashkin + 3 pers.
V.G. Shabratov + 2 pers.

The LINAC-800 based test-
bench with electron beam

G.D. Shirkov
N.I. Balalykin

Technical Proposal
Realization

VBLHEP

V.V. Kobets + 3 pers.
V.F. Minashkin + 1 pers.

Metrological laser complex

J.A. Budagov
G.A. Shelkov
V.V. Ivanov

Technical Proposal

DLNP

D.I. Hubua + 5 pers.
G.A. Chelkov + 5 pers.

Development of cryogenic modules of the 4-th generation: cryogenic and vacuum tests of an explosive welding Nb+SS jants, of Nb+Nb cavities new concept flange connection. Design works for 1-cell Nb-cavity production.

J.A. Budagov

Technical Proposal

DLNP

A.K. Sukhanova
B.M. Sabirov
N. Azaryan

Development of the electron
cooling method

I.N. Meshkov
S.L. Yakovenko

Technical Proposal
Realization

DLNP

A.G. Kobets + 7 pers.

Commissioning of the LEPTA

I.N. Meshkov
S.L. Yakovenko

Technical Proposal
Realization

DLNP

S.L. Yakovenko + 6 pers.
V.N. Pavlov
Yu.K. Akimov
Nguen Man Shat + 1 pers.
T.N. Mamedov + 2 pers.

Investigation on physics of
ion sources and beam dynamics

G.D. Shirkov
V.S. Alexandov

Technical Proposal
Realization

VBLHEP

V.S. Alexandrov + 3 pers.
V.F. Shevtsov

Development of diagnostic sys-
tems of ultra short bunches in
the linear accelerator

E.M. Syresin

Technical Proposal
Realization

DLNP

E.M. Syresin + 5 pers.

VBLHEP

O.I. Brovko
E.V. Ivanov
A.V. Shabunov + 3 pers.

Experimental study of coherent radiation

E.M. Syresin

Technical Proposal
Data taking

VBLHEP

A.V. Shabunov + 3 pers.

DLNP

N.A. Morozov + 3 pers.

10.

Construction of units for diagnostics of radiation
from X ray laser

O.I. Brovko

Technical Proposal
Realization

VBLHEP

A.V. Pilyar

DLNP

A.V. Shabunov + 3 pers.
E.M. Syresin + 3 pers.

11.

Investigation on intense elect-
ron beams and FEL applied for extreme ultraviolet lithography

M.V. Yurkov
E.M. Syresin

Realization

DLNP

E.M. Syresin + 4 pers.

Collaboration
Country or international organization	City	Institute or Laboratory
Armenia	Yerevan	YerPhI
Bulgaria	Sofia	INRNE BAS
CERN	Geneva
Germany	Darmstadt	GSI
	Dresden	TU Dresden
	Hamburg	DESY
	Frankfurt/Main	Univ.
	Julich	FZJ
	Zeuthen	DESY
Greece	Athens	Univ.
India	Indore	RRCAT
Italy	Catania	INFN LNS
	Pisa	INFN
	Frascati	INFN LNF
Japan	Chiba	NIRS
	Kyoto	Kyoto Univ.
	Tsukuba	KEK
Poland	Warsaw	UW
Russia	Moscow	ITEP
		MSU
		SSDI
	Nizhny Novgorod	IAP RAS
	Novosibirsk	BINP SB RAS
	Troitsk	INR RAS
	Sarov	VNIIEF
United Kingdom	Swansea	Univ.
Slovak Republic	Bratislava	IEE SAS
USA	Upton, NY	BNL
	Batavia, IL	Fermilab

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International Linear Collider: Accelerator Physics and Engineering

International Linear Collider:
Accelerator Physics and Engineering