THEME02-0-1067-2007/2015

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02-0-1067-2007/2015

Priority:

Status:

Approved for completion
in 2015

Advanced Studies in New Generation of Electron-Positron
Accelerators and Colliders for Fundamental
and Applied Research

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

Participating Countries, Institutes and International organizations:
Belarus, Bulgaria, CERN, Germany, Greece, Italy, Japan, Poland, Russia, Slovakia, United Kingdom, Ukraine, USA.

Scientific Programme:
R&D work 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 future Linear Collider (CLIC/ILC). Studies of free electron laser physics, development and construction of systems applied for formation and diagnostics of ultra short dense bunches in the linear electron accelerators. Construction of the generator of direct positronium fluxes for study of new particles and "new physics", construction of the installation for positron annihilation spectroscopy. Study of cryomodule components and SC cavities. High precision lase metrology. R&D for laser-plasma accelerators.

Expected main results in 2015:

Mechanical design and production of the photoinjector support. Main photoinjector units assembling. Startup of the second emittance measurement station. Production and research of "transparent" thin film photocathodes.
Commissioning of the linear electron accelerator (fourth segment) with electron energy up to 150 MeV. Assembling and testing of the waveguide line and the beamline section with quadrupole focusing magnets.
Creation of the prototype of 50 meters long Laser Fiducial Line in air with spatial stability of the beam of 50 microns. Manufacturing Nb++SS transition samples for the newly designed (triple-metalic) construction using the advanced technology of explosive welding of niobium with titanium and stainless steel, cryo/vacuum and metallographic tests, neutron diffraction investigation. Manufacture and tests of prototypes of single-cell cavities of high-pure niobium.
Low Energy Particle Storage Ring LEPTA: storage of intense positron bunch in Malmberg-Surko trap and its injection into LEPTA storage ring, enhancement of intensity of circulating positrons. electron cooling of positrons and Positronium generation. Construction of cryogenic source of monochromatic positrons based on autonomic system of liquid helium supply. Performance of experimantal studies of constructional materials and semiconductors using positron annihilation spectroscopy (PAS) method, construction of "tagged" slow positron channel.
Investigation of electron beam and FEL physics: investigation of bunch longitudinal structure on basis of infrared radiation produced by JINR undulators at FLASH, analysis of beam formation in FLASH2 using microchannel plate detector, installation of three microchannel plate detectors of XFEL, first experiments with PITZ photoinjector applied for formation of 3D ellipsoidal shape electron bunches.
Creation of the laboratory and practical works complex based on linear accelerator bench for students from JINR member states.
Preparation of the proposal of the JINR participation in the FCC design study at CERN.

List of projects:
	Project	Leader	Priority (period of realisation)
1.	JINR participation in design, manufacturing and testing of the prototypes of linear electron--positron collider elements and FEL	G.D. Shirkov G.V. Trubnikov	1 (2013-2015)

List of activities

Activity or experiment

Leaders

Status

Laboratory or other
Division of JINR
Responsible person

Main researchers

R&D works at DC photoinjector
prototype with electron energy
up to 400 keV. Construction
photoinjector laser system
applied for formation of 3D
ellipsoid shape bunches of
light radiation

G.V. Trubnikov
N.I. Balalykin

Technical Proposal
Realization

VBLHEP

V.F. Minashkin, M.A. Nozdrin, V.G. Shabratov, A.V. Shevelkin

R&D works at dedicated test
bench: electron linear accelerator
up to 200 MeV for studies of
accelerating structures properties
and usage as FEL prototype.
Laser-plasma acceleration
technologies

G.D. Shirkov
V.V. Kobets
A.V. Dudarev

Technical Proposal
Realization

VBLHEP

V.G. Shabratov, A.V. Skrypnik, A.N. Ukhanov, V.F. Minashkin, M.A. Nozdrin

DLNP

E.M. Syresin, R.S. Makarov, V.M. Romanov

S.Z. Pakulyak

CAR

V.N. Samoilov

R&D works for particle accelerator
cryomodule components and
superconducting cavity
optimal configuration;
and for high precision laser
metrology control of element
alignment of large accelerator
facilities

J.A. Budagov

Technical Proposal
Realization

DLNP

N.S. Azaryan, V.V. Glagolv, D.L. Demin, D.I. Khubua, V.I. Kolomoets, S.M. Kolomoets, M.V. Lyablin, V.M. Romanov, B.M. Sabirov, S.N. Studenov, A.V. Sazonova

LEPTA facility: electron cooling
of positrons and Positronium
generation. Development of
Doppler positron annihilation
spectroscopy

I.N. Meshkov
A.G. Kobets

Realization

DLNP

E.V. Akhmanova, V.I. Lokhmatov, V.D. Morozov, V.N. Pavlov, A.Yu. Rudakov, A.A. Sidorin, L.V. Soboleva, T.A. Stepanova, P. Horodek

VBLHEP

V.N. Karpinsky, V.M. Drobin, V.V. Seleznev

Investigation on intense electron
beams and FEL. Development
and construction of systems
applied for formation and
diagnostic of ultra short
dense bunches in the linear
electron accelerators

E.M. Syresin
O.I. Brovko
M.V. Yurkov

Realization

DLNP

N.A. Morozov, A.F. Chesnov, R.S. Makarov, D.S. Petrov, V.M. Romanov

VBLHEP

A.Yu. Grebentsov, N.I. Zamyatin, O.A. Myslinskaya

Preparation of the proposal of the JINR participation in the FCC design study at CERN

A.D. Kovalenko

Preparation

VBLHEP

A.M.Taratin + 2 pers.

Collaboration
Country or International Organization	City	Institute or Laboratory
Belarus	Minsk	NC PHEP BSU
		BSUIR
		SPMRC NASB
		PTI NASB
		INP BSU
Bulgaria	Sofia	INRNE BAS
CERN	Geneva	CERN
Germany	Darmstadt	GSI
	Hamburg	DESY
	Heidelberg	MPIK
	Zeuthen	DESY
Greece	Athens	UoA
Italy	Pisa	INFN
	Frascati	INFN LNF
Japan	Tsukuba	KEK
Poland	Krakow	NINP PAS
Russia	Moscow	SSDI
	Moscow, Troitsk	INR RAS
	Nizhny Novgorod	IAP RAS
	Novosibirsk	BINP SB RAS
	Ryazan	RSU
	Sarov	VNIIEF
Ukraine	Kiev	PEWI NASU
	Kharkov	IERT NASU
United Kingdom	Oxford	JAI
Slovakia	Bratislava	IEE SAS
USA	Upton, NY	BNL
	Batavia, IL	Fermilab

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Advanced Studies in New Generation of Electron-Positron Accelerators and Colliders for Fundamental and Applied Research

Advanced Studies in New Generation of Electron-Positron
Accelerators and Colliders for Fundamental
and Applied Research