Main Researches and Future Plans of Main Researches and Future Plans of Dzhelepov Laboratory of Nuclear ProblemDzhelepov Laboratory of Nuclear Problem

E. SyresinE. SyresinElementary Particle Physics and Relativistic Nuclear Physics

•ATLAS General –purpose pp Experiment at CERN’s Large Hadron Collider•Development of JINR Basic Facility for Generation of Intense Heavy Ion and Polarized Nuclear Beams.•Study of e+e- Interactions, Linear Collider Physics and Detector•International Linear Collider: Accelerator Physics and Engineering•Study of Neutrino Oscillations and Determination of Oscillation Parameters •JINR’s Participation in the Physics Research Programme at the Upgraded Fermilab Tevatron

Nuclear Physics•Investigations of Fundamental Interactions in Nuclei at Low Energies•Improvement and Development of the JINR Phasotron for Fundamental and Applied Research•Nucleous and Particle Interaction at Intermediate Energies

Radiation and Radiobiological Research•Further Development of Methods and Instrumentation for Radiotherapy and Associated Diagnostics with JINR Hadron Beam

Innovation activity in framework of Dubna SEZ•Project of Dubna Center of Radiation Medicine• DLNP Nanotechnology Projects Realized at Dubna SEZ

International Linear Collider: Accelerator Physics and EngineeringInternational Linear Collider: Accelerator Physics and EngineeringDLNP Research works related to FLASH, XFEL and ILC projects

PARAMETERS OF ULTRASHORT ELECTRON BUNCHESPARAMETERS OF ULTRASHORT ELECTRON BUNCHES

ParametersFLASH XFEL ILC

Electron energy, GeV 1 17.5 250

Bunch charge, nC 1 1 3.2

Normalized emittance, mmmrad

2 1.4 10/0.04

Bunch length, m 50 25 300

Bunch repetition rate, MHz

2 5 2.7

JINR – Sarov- INFN-Pisa collaboration produces connection of a bi-metallic Ti-SS tubes by explosion welding. It permits to connect the Titanium helium vessel with a 76-mm diameter two-phase helium line. Such a transition would allow for a very substantial cost savings in the 4th generation cryomodule production.

Parameters of FEL radiation, Parameters of FEL radiation,

FLASH MCP detectorFLASH MCP detectorWavelength 6-100 nmAverage energy per pulse up to 50 µJMaximum energy per pulse up to 130 µJRadiation pulse duration 25-30 fsPeak power (from average) up to 1 GWSpectral width (FWHM) 0.8%Angular divergence (FWHM) 160 µrad Peak Brilliance ~ 1028 ph/s/mrad2/mm2/(0.1%bw)

Pu

lse

En

erg

y (µ

J)

Bunch Number 1 2 3 4 5 6 7 8 9 10 11 `12 13 14 15

0

5

1

0

15

20

2

5

3

0

MCP detector: JINR, Dubna

JINR infrared undulator applied for short bunch JINR infrared undulator applied for short bunch measurements and pump probe experiments in measurements and pump probe experiments in

FLASH-DESY tunnelFLASH-DESY tunnel

June 2007, DESY

2006, JINR Workshop

Period, cm 40

Number of periods 9

Magnetic field, T 0.1-1.1

Output radiation

Wavelength, μm 50-200

Peak power, MW 100

Average power 50

Micropulse energy, mJ 1

Micropulse duration, ps 1-10

Coherent radiation of FLASH FIR undulator

FLASH First Pump –Probe experiments with VUV and FIR undulators

Electrons produced by VUV photons are accelerated by electric field of IR light.

Spectra measurement of accelerated electrons permits to reconstruct the FLASH VUV pulses

XFEL BUNCH MEASHUREMENTS XFEL BUNCH MEASHUREMENTS AND PUMP-PROBE EXPERIMENTSAND PUMP-PROBE EXPERIMENTS

FLASH FIR undulatorFLASH FIR undulator

Dipole#1 Dipole#3

Dipole#2

Beam position MonitorsBeam position Monitors

10 m

5 mm

E= 250 GeV, Bl = 0.4 Tm, BPM = 100 nm dEb/Eb ~ 5 x 10-5

Beam energy measurement is based on precise angular measurementand on precise B-field integral (ΔB/B = 2 10-5) of the spectrometer magnet

Magnetic Spectrometer (e.g. proposed in LC-DET-2004-031)JINR-DESY (Zeuthen) collaboration

Method to measure the beam energy in ILCMethod to measure the beam energy in ILC

Electron energy measurements at prototype SLAC spectrometerElectron energy measurements at prototype SLAC spectrometer

R. Arnold et al., PAC07, 3085.

SLAC T-474 project realized in framework of JINR-SLAC-DESY(Zeuthan) collaborationElectron energy - 28.5 GeV beam BPM resolution ≈ 1 μm Accuracy of the magnetic field integral is 100 ppm.Relative electron energy resolution is 2.5∙10-4.

Experimentally measured and calculated mid-chicane beam deflection during 5 steps of energy scan in range 0.2 GeV

Proton therapy at DLNP phasotronProton therapy at DLNP phasotron

Cancer treatment in room №1 Prostate treatment equipment

3D conformal proton beam treatment 3D conformal proton beam treatment were realized in Russia only in JINR.were realized in Russia only in JINR.

During last years around 100 patients per year were radiated by proton beam in JINR Medical-Technical Complex

CANCER TREATMENT ON PHASOTRON BEAMSCANCER TREATMENT ON PHASOTRON BEAMS

Plan of proton treatment of brain cancer tissue (right), NMR tomogram before treatment (left) NMR tomogram after 3 months later (down)

INNOVATION ACTIVITY DLNP IN FRAME WORK OF DUBNA SEZINNOVATION ACTIVITY DLNP IN FRAME WORK OF DUBNA SEZ

DUBNA CYCLOTRON CENTER OF PROTON THERAPYDUBNA CYCLOTRON CENTER OF PROTON THERAPY

Dubna Center of Radiation Medicine (CRM) involves:

Cyclotron Center of Proton Therapy, PET center, Department of convention radiotherapy with electron linac, Diagnostic department, Proton therapy clinic.

The scheme of accelerator equipment of Dubna CRM.

The Center of proton therapy has 3 treatment rooms, 1 with the gantry and 2 rooms with the fixed beams.

About 1000 patients per year will be treated there.

Cyclotron C235Cyclotron C235JINR-IBA collaboration develops a medical cyclotron for the proton therapy. This year it is planned to complete its construction and in 2009 to carry out the beam tests. After that the accelerator could be installed in the Dubna hospital Centre of proton therapy.

Simulation of magnetic field

Athimuthal angle variation

To provide small internal losses (<15% instead of 50% now)

JINRJINR--IBAIBA CC400400 cyclotron applied for carbon therapy cyclotron applied for carbon therapy

JINR-IBA collaboration designed the C 400 superconducting cyclotron for the carbon therapy and IBA starts its construction. This first medical carbon cyclotron will be installed within the framework of the Archade project in Caen (France).

NANOTECHNOLOGIES DEVELOPED AT DLNPNANOTECHNOLOGIES DEVELOPED AT DLNP

Radiation hard semiconductor gamma-detectors JINR and Tomsk University Collaboration

Pixel detector Strip detector

Proposal of XFEL HYBRID PIXEL ARRAY DETECTORThe main task of XFEL complex – new research of nanostructures with femtoseconds time resolution – requires a new generation of instrumentation and analysis tools - Large area Hybrid Pixel Array Detector.

“NANOSCAN” Production of radiation-hard semiconductor gamma-detectors on the basis of Ga-As for high-tech applications in nanoindustry, medicine and integrated security systems

The micropixel avalanche photodiodes (MAPD) is a novel photodetector with a multipixel intrinsic structure on the common silicon substrate. Each pixel works as independent photon microcounter on the common load in the Geiger mode to the total number of pixels.

MAPD could be effectively applied in nanoindustry, medicine technique, radiation control, biology and high energy physics.

New technology realized at 250 nm permits to reach few μm pixel size and pixel density of 40000 mm-2.

The nanostructure studies by the positron annihilation The nanostructure studies by the positron annihilation spectroscopy method on the LEPTA facilityspectroscopy method on the LEPTA facility

Positron annihilation spectroscopy permits to

define structure of a material with resolution of 1 nm.

ConclusionConclusion

DLNP Research Plan is fully in line with JINR priorities defined by “Road Map”.

DLNP contributions are well visible inside the collaborations.

DLNP innovation activity in framework of Dubna SEZ is under activeRealization now.