Accelerator Centre
Special beamlines
Nuclear and astrophysics Laboratory
Materials Science Laboratory (HAS-ATOMKI - University of Debrecen)
Hertelendi Laboratory of Environmental Studies
Other equipment

Accelerator Centre

MGC-20E cyclotron

The ATOMKI cyclotron is the biggest accelerator in Hungary.

Main beam parameters:
Particle Energy [MeV] Intensity [µA]
proton 2.5 - 18 40
deuterium 1.0 - 10 40
3He 4.0 - 26 10
alpha 2.0 - 20 20

Further information

Contact: biri at


5 MV Van de Graaff accelerator
Main beam parameters:
Terminal voltage 0.8-5 MV
Mass energy product 56 MeV x AMU/e2
Energy stability < 1 keV
Max beam intensity, direct 50 µA
Max beam intensity, analyzed 10 µA
Ion source inductively coupled RF source
Ion range H+, D+, He+, C+, N+, O+, Ne+

Further information

Contact: biri at


1 MV Van de Graaff accelerator

Main beam parameters:
Terminal voltage 50-1500 keV
Mass energy product 19 MeV x AMU/e2
Energy stability < 1 keV
Max beam intensity, direct 80 µA
Max beam intensity, analyzed 12 µA
Ion source inductively coupled RF source
Ion range H+, He+, C+, N+

Further information

Contact: biri at


ECR (Electron Cyclotron Resonance) ion source

This is the only ECR ion source in Hungary.

Ion range: H, He, C, F, N, O, Ne, Fe, Ni, Zn, Kr, Xe, C60
Stripping, Q=1...27
Beam energy: (0.1-30)*Q [keV]

Two configurations are available:
  Configuration A. (production of highly charged ions)
  Configuration B. (production of large plasmas)

Configuration A. (production of highly charged ions):
Microwave 14,3 GHz, 50 - 1000 W
Resonant magnetic field 0,5 Tesla
Diameter and length of the plasma chamber 5,8 cm x 20 cm

Configuration B. (production of large plasmas):
Microwave 6 - 18 GHz, 0,1 - 20 W
Resonant magnetic field változtatható
Diameter and length of the plasma chamber 10 cm x 20 - 40 cm

Further information

Contact: biri at


Debrecen Isotope Separator Laboratory (DISP)

The installation of an electromagnetic isotope separator facility has been initiated to target a broad range of low-energy ion beam applications, which demand high-quality momentum and mass selected beams in an energy region of 100 V to several tens of kV. The facility provides positive single-charged ion beams formed of elements of both gases and solids. Potential ion beam applications may include the formation and modification of surface layers, implantation profiles, isotopically controlled structures and high-purity isotope enrichement for tracing studies.

Further information

Contact: hunyadi at

Special beamlines

Scanning Nuclear Microprobe
Type Oxford quadrupole triplet
Beam size (@ 100 pA) 1.5 µm
Beam size (@ < 1 pA) 700 nm
Max scanned area 2500 µm
Applications PIXE, RBS, NRA, PIGE, DIGE,

Further information

Contact: rajta at


ESA-21 electrostatic spectrometer
and universal measuring chamber laboratory for atomic collisions
Type combination of a spherical mirror and a two stage cylindrical mirror
Electron energy range 50 eV - 16 keV
Energy resolution 5 x 10-4 - 6 x 10-3
Angular range of electron detection 0o - 180o
(at 13 angles, by 15o, simultaneously)

Further information

Contact: sulik at


Broad spectrum high intensity cyclotron neutron source with Be target

It is one of the most important fast neutron sources in Hungary. It operates at the MGC-20E cyclotron of ATOMKI.

High intensity fast neutron fields can be produced by bombarding a stopping Be-target either with protons (p+Be neutrons) or deuterons (d+Be neutrons). The continuous spectrum of the p+Be neutrons covers the energy range En = 0-16 MeV. The continuous spectrum of the d+Be neutrons covers the energy range and En = 0-12.5 MeV. The neutron energy and intensity can be controlled by the energy and intensity of the bombarding beam. For 18 MeV protons typically 3x1011 n/s/sr intensity can be achieved at the 0o +/- 10o cone.

Partners: University of Debrecen, KFKI-RMKI (Budapest, Hungary), CERN: CMS, ALICE, ATLAS; EU FP7

A nuclear analytical and a radiochemistry lab is also available.

Further information

Contact: fenyvesi at


Quazi-monoenergetic fast neutron source

It is one of the most important fast neutron sources in Hungary. It operates at the MGC-20E cyclotron of ATOMKI.

d+D fast neutrons are produced by bombarding a D2-gas target with deuterons. Quasi-monoenergetic neutrons can be obtained in the En = 3 - 12 MeV energy range. The neutron energy, the neutron intensity and the energy spread of the emitted neutrons can be varied by changing the energy and intensity of the bombarding beam and the pressure of the filling D2-gas of the target cell. 3 orders of magnitude of neutron intensity range can be covered. After evacuation of the target cell and changing its W beam stop plate to a thick Be disc it is also possible to produce d+Be neutrons with well known spectra at the same irradiation site and geometry.

A pneumatic rabbit system is available for movement of the irradiated radioactive sample between the irradiation and counting positions. This enables cyclic irradiation and counting of activated samples when the activation processes lead to the formation of short lived radioactive products.

Partners: University of Debrecen, IAEA (Vienna, Austria), IRMM (Geel, Belgium)

Further information

Contact: fenyvesi at


Nuclear and astrophysics Laboratory

Split pole magnetic spectrometer for proton and heavy ion measurements
K value 80 (26)
Angle of the focal plane 45o
Length of the focal plane 120 cm
Length of the Si detector 72 cm
resolution 1 mm
bending radius 40 - 90 cm
Max field 1.6 (0.8) T
Max solid angle 5.4 msr
Energy range Emax/Emin 4.8
Horizontal magnification 0.34
Vertical magnification 1.7 - 3.3
Energy dispersion Δx/ΔE/E 10 mm/%
Energy resolution ΔE/E 1x10-3

Further information

Contact: kraszna at


Scattering chamber equipped with Si detector telescopes

The 78.8 cm inner diameter scattering chamber is equipped with 2 independently controlled wheel which can hold up to 10 silicon detectors. For the monitoring of the beam and target properties 2 additional detectors are mounted permanently on the chamber wall at ±15 degrees relative to the incoming beam. Up to 8 targets can be placed on the remote controlled sample holder. The target to beam angle and the height of the target can be changed as needed.

Contact: kraszna at and ggkiss at


DIAMANT, light charged particle detector system

3 mm thich CsI detectors, with photodiode readout
Charge sensitive preamps + VXI electronics

Energy resolution (5.5 MeV for α-particles) 2%
Efficiency for protons 70%
Efficiency for α-particles 50%

Contact: nyako at


Obelisk TOF spectrometer for fission products

Low pressure (P=5 mbar, isobutane) gas multi wire proportional counters, delayed line readout.

Time resolution < 0.4 ns
Angular resolution < 1o
Mass resolution 5 amu
Solid angle 50% (from 4π)

Contact: kraszna at


CLOVER gamma spectrometers with BGO anti-Compton shield

Volume 470 cm3
Efficiency (@ 1332 keV, in add-back mode) 125 %
Energy resolution (@ 1332 keV) ~ 2.2 keV
Compton supression ~ 3

(One of them belong to ATOMKI, the other two are borrowed)

Contact: kraszna at


2 pcs Canberra GR10024 N-type 100% relative efficiency koaxial HPGe detector

One of the detectors is "Ultra Low Background" and comes with a TEMA DSF-3 low background lead shield

Volume 400 cm3
Efficiency (@ 1332 keV, in add-back mode) 100 %
Energy resolution (@ 1332 keV) 2.4 keV

Contact: gyurky at


GL2015R type LEPS-low energy gamma spectrometer

Ge crystal thickness 15 mm
Ge crystal active area 2000 mm2
Energy resolution FWHM at 5.9 keV 400 eV
Energy resolution FWHM at 122 keV 700 eV

Contact: ggkiss at


High energy (5-20 MeV) electron-positron pair spectrometer

(Multi wire proportional counters for localization of impact spots, and ΔE-E plastic scintillator telescopes for identification of particles and measurement of their energy)

Time resolution < 1 ns
Angular resolution < 3o
Energy resolution < 10%
Coincidency efficiency 2 - 3 %

Contact: kraszna at


Superconducting magnetic electronspectrometer

(Under construction)

B(max) 2 T
ΔB/B (500 mm long) < 3 %
Inner diameter of the solenoid 85 mm
Length of the solenoid 400 + 160 mm

Contact: kraszna at


ELENA neutron TOF spectrometer

(EU FP6 supported project for investigation of giant resonances in radioactive beams)

Time resolution < 0.8 ns
Angular resolution (L= 1 m) < 1o
Energy resolution (En = 1 MeV) < 10 %
Detection efficiency ( En= 0.5 - 5 MeV) 20 - 40 %

Contact: kraszna at


Leybold UNIVEX 350 vacuum evaporator

Main parts:
- turbomolecular pump
- ohmic and electron-bombarding evaporator sources
- automatic source closure
- vibration quarz thickness sensor
- rotatable sample holder

Contact: gyurky at


Materials Science Laboratory

(HAS-ATOMKI - University of Debrecen)

TOF electronspectrometer
Type electron TOF
Electron energy range 5 - 20 eV
Energy resolution 6% - 10%
Angular range 0o +/- 10o
Coincidence measurements between four independent energies

Further information: Meas. Sci. Technol. 17 (2006) 84.

Contact: sarkadil at


Low Temperature Physics Laboratory

The laboratory consists of a cryotechnic supply system and low temperature experimental equipments. The most important part of the cryo-system is a KGU-600/15-150/4,5-40 type helium liquifier, which can produce 40 l of liquid helium per hour. It is also connected with a gas collecting pipe system networked in most laboratories of the institute. The system supplies external users as well.

Experimental facilities:

1) R 160 type general purpose cryostat
a.) Liquid helium volume: 40 l
b.) Built in superconductive magnet max field 9 T, vertical
c.) Built in tempertaure controlled measurement chamber: temp range 2÷300 K, controlled by low pressure He gas flow above 4.2 K, and circulated liquid He bath below 4.2 K.
d.) Top loading chamber, diameter 30 mm

2) 3He/4He dilution refrigerator
a.) Lowest available temperature 6 mK
b.) Vertical sample chamber, max 1,8 T magnetic field inside a superconductive magnet
c.) Connectable to an optical or particle beam by a window system

3) Measurement system for solid state physics
a.) NI PXI based data acquisition
b.) lock-in analyser
c.) electronic signal processing units
d.) probes for measurements of magnetic and current transport properties

Contact: ms at


Electronspectroscopy Laboratory

ESA-22 Multiparameter electronspectrometer

Type combination of a spherical and a cylindrical mirror
Electron energy range 20 eV - 10 keV
Energy resolution 2 x 10-4 - 4 x 10-3
Angular range 0o - 360o (continuously)
Energy- and angular measurements Simultaneously
Coincidence measurements between two independent energy electrons
Solid and gas phase samples applicable
Equipped with Electron gun (up to 5 kV)
Ion gun for surface cleaning

Contact: ricz at


ESA-31 Electrostatic electronspectrometer
Type half sphere analyzer
Electron energy range 20 eV - 10 keV
Energy resolution max. 3 x 10-5
Ultra high vacuum 5 x 10-10 mbar
Equipped with 4 X-ray sources (from 1467 eV to 8048 eV)
Electron gun (up to 10 keV),
Ion gun for surface cleaning

Contact: dvarga at


X-ray Spectroscopy Laboratory

Double function X-ray analyzer

1. X-ray diffractometer
Type horizontal Bragg-Brentano setup, graphite monochromator
Angular range (2θ) 0.5o - 120o
Smallest step size (2θ) 0.005o

2. X-ray fluorescent analyzer
Type energy dispersive
Detector 30 mm2 Si(Li)
Source X-ray tube/secondary target
Analitical range Z > 11
Concentration range ~ 1 ppm - 100%

Contact: kvm at


Laboratory for Multilayer structure and kinetics

Preparation and structural analysis of thin films/multilayers

Magnetron Sputtering System

Using magnetron sputtering techniques with UHV vacuum system we are able to produce metallic, semiconducting and insulating type thin films or multilayers with 2-3 nm individual layer thicknesses. Our main research area is the investigation of thermal stability of multilayers, motion and transformation of interfaces, studies of diffusional movement of atoms, and solid-state reactions in layered structures.

Contact: glanger at and csik at


SNMS/SIMS (Secondary Neutral/Ion Mass Spectrometer)

The Secondary Neutral/Ion Mass Spectrometry (SNMS/SIMS) is a suitable technique for depth profiling of surface coatings or multilayered structures (up to 1-2 nm modulation length), to analyse the depth distribution of impurities/doppants in semiconductor and polymer systems.

Main parameters:
Sputtering gases Ar, Ne, Kr, Xe
Typical sputtering speed ~0,1 nm/s
Ion energy 100 eV - 2 keV
Mass spectrometer Balzers QMG 422
Mass range 0 - 340 amu
Detection limit 1 ppm
Depth resolution 1-2 nm
Sample holder Up to 600 oC
Down to -180 oC
x - y translator

Further information

Contact: vad at and csik at



With AMBIOS XP-I profilometer by measuring the vertical stylus displacement as a function of position we are able to measuring surface flatness, waviness and topography in nanometer vertical resolution with stylus loads from 10 mg down to 0.05 mg.

Főbb paraméterek:
Scan length range max. 30 mm
Sample thickness max. 20 mm
Vertical resolution 0.5 nm at 10 µm
1.5 nm at 100 µm
Stylus tip radius 2.0 µm
Sample viewing Colour camera with 100X magnification

Contact: csik at


AFM and Electronmicroscopy Laboratory (DE-ATOMKI)

The Laboratory provides a wide range of investigation possibilties for the micro and nanostructure primarily in materials science and technology applications and research. For microscopy measurements the necessary sample preparation units and the operating manpower and experience is also available. The laboratory can produce compund phase and unequilibrium, nanostructured materials and heat treatments.

We offer regional service for companies and research institutes.

Facilities of the Laboratory:

Facilities marked with * are jointly operated by HAS-ATOMKI and the University of Debrecen.

Contact: iaszabo at


Hertelendi Laboratory of Environmental Studies

One of the subdivisions of the Section of Environmental and Earth Sciences is the Laboratory of Environmental Studies (LES), a multidisciplinary team dedicated to research in nuclear analytical methods, stable isotope measurements and systems technology. In operation for more than 15 years it has established a national and international reputation as a premier analytical laboratory, known for pioneering efforts in radiometric and stable isotope analysis techniques. It has considerable expertise in isotope measurements, radiocarbon dating, tritium measurements, monitoring activity around nuclear facilities and modelling of radionuclides in the environment, most of its projects being strongly related to the Paks NPP activity.

Further information

Contact: svingor at

Main equipments, facilities:

Static vacuum noble gas mass spectrometer Fisons VG-5400

The VG-5400 mass spectrometer is suitable for determination of isotope ratios of all noble gases. This is the first noble gas mass spectrometer in Hungary which has the sensitivity, accuracy and resolution required by various important fields of research, like environmental research, nuclear fission safety, waste disposal and geochronology.

The sample inlet line is equipped with pneumatically activated NUPRO valves SS-4-BK, controlled by a computer. The line is made of stainless steel with UHV connections (VCR) with copper or aluminium gaskets. Four samples can be analyzed in a row without any manual intervention. The line includes two vacuum units: one ion pump for the inlet section, one turbomolecular pump with its rotary pump for evacuating the purification section. This provides a high vacuum in the system (<10-8 torr). The pressure is controlled manually and via the computer at different stages in the system with Pirani and Penning gauges connected to the computer through an HP-IB interface.

The purification section consists of an unfilled trap and a charcoal trap, placed in the same Dewar filled with liquid nitrogen, the level of which is regulated automatically by thermal sensors and an electrically activated valve connected to a liquid nitrogen tank. These two traps are followed by a SAES getter pump for removing the hydrogen.

The mass spectrometer has a magnet of 90o deflection and 27 cm deflection radius with an extended geometry. The sensitivity is 1x10-3 A/mbar for Ar and 2x10-4 A/mbar for He. The resolution is adjusted to 600 which is sufficient for the resolution of 3He+, H3+ and HD+ beams. The abundance sensitivity measured as contribution from mass 40 at mass 39 is less than 0.5 ppm at 10-7 torr. The static vacuum level in the 1.3 l volume deflection chamber is 1x10-12 cm3 STP/min at mass 40.

Installed: 1998.

Thermo Finnigan Delta plus XP type stable isotope mass spectrometer

The various isotopes of an element have slightly different chemical and physical properties because of their mass differences. For elements of low atomic numbers, these mass differences are large enough for many physical, chemical, and biological processes or reactions to "fractionate" or change the relative proportions of various isotopes. Changes of isotope ratios can provide important information about the underlying processes. Natural isotope fractionation processes change the ratios only to a very small amount therefore very precise, high sensitivity measurements are needed. For the geological and hydrological applications a Thermo Finnigan Delta plus XP type stable isotope mass spectrometer is operated in the lab to study the five most important elements in geochemistry (S, C, H, O, N).

The isotope ratios are measured in the forms of H2, N2, CO2, SO2. In most cases the samples are in solid or liquid phase. They have to be converted to gas, using the sample preparations units of the mass spectrometer. On-line measurements are also available by connecting the different peripheries. Thus isotope ratios in the following materials can be analysed:
- water (O, H)
- sulfate, nitrate, ammonia diluted in water (S, N)
- carbonates (O, C)
- organic materials (C, N, O)
- carbohydrates (C, H)

δ2H: ±3‰, this means ±1ppm for the deuterium content of water;
δ18O: ±0,2‰, δ13C: ±0,1‰, δ15N és δ34S: ±0,3‰

We can determine the infiltration temperature of water, or the origin of sulfate or nitrate contamination of water.

The measurement of carbon isotope ratios allows us to measure the presence of iso-sugar mixed in honey.

Installed: 2002.

Omnistar quadrupole mass spectrometer Balzers GSD 30002

The quadrupole mass spectrometer equipped with a capillary inlet system is able to measure the main components of gas samples. Its range of analysis cover the interval from 1 amu to 200 amu. Weighting 45 kg it might be transported easily and applied in situ measurements. The resolution of the instrument is between 50 and 100 at mass 40. The spectrometer can be supplied with a membrane inlet system, which makes it suitable to measure dissolved gas in liquids.

Installed: 1999.

Elemental Analyser Fisons NA1500 NCS

The instrument is devoted to pre-treatment of samples for stable mass spectrometry.

The analytical method is based on the complete and instantaneous oxidation of the sample by "flash combustion" which converts all organic and inorganic substances into combustion products. The resulting combustion gases pass through a reduction furnace and are swept into the chromatographic column by the carrier gas (helium). The gases are separated in the column and detected by the thermal conductivity detector (TCD) which gives and output signal proportional to the concentration of the individual components of the mixture.

A few parameters:

Sample (mg) 0.5-100
KH (ppm) 10
Measurement time (min) 10
Range (%) 0,01-100

Installed: 1994.

Counter system for high-precision 14C dating + pre-treatment unit

The gas proportional counting system was developed for high precision radiocarbon dating and consists of nine electrolytic copper proportional counters of identical diameters with sensitive volumes of 0.35-0.73 dm3 and filled with CO2 at 1115 mbar and 2 bar. The inner counters are surrounded by an anticoincidence shield consisting of five multiwire proportional flat counters filled with propane. The pulses of the detectors are handled by integrated amplifiers, discriminators and anticoincidence units interfaced to a microprocessor-controlled data evaluation unit. Software is written in BASIC using ASSEMBLER sub-routines. The overall precision of the system for modern carbon samples is better than 4 ‰ after a counting period of seven days.

Installed: 1974.



System parameters









Total active volume (dm3)









Standard counting rate (S) (cpm)









Background (B) (cpm)









Figure of merit (S/ÖB)









Max. measurable age (2 days) (yr)









LSC instrument Canberra-Packard TRICARB 3170 TR/SL

A completely computer controlled benchtop liquid scintillation analyzer, provided by Canberra-Packard Instruments, specially configured for extremely low level radioactivity analysis, featuring:

Installed: 1999.


Low background gamma-spectrometer Canberra-Packard BE5030-7915-30ULB

The HPGe γ-ray spectrometer (Canberra Model BE5030) situated in the underground low background laboratory of the Institute is equipped with a preamplifier (Canberra model 2002 CP) and an U-type cryostat. The detector has an active diameter of 80 mm and a carbon epoxy window with 0.5 mm thickness. The γ-ray spectral data are recorded by a multichannel analyzer (DSA-2000) processed by peak search and nuclide identification software (Genie 2000).

The protection against cosmic rays and other background noises is realized by the 777B type lead shield. The dewar is located beside the shield and the horizontal arm extends through the side of the shield.

The main parameters of the γ-detector are the following:

Izotóp 55Fe 241Am 57Co 60Co
Energy (keV) 5,9 59,5 122 1332,5
FWHM (eV) 437 555 659 2025
FWTM (eV) - 1024 1221 3799


Installed: 2000.

Mobile, high-precision atmospheric CO2 monitoring station (FOCAM)

As a part of an ongoing research project being carried out in Hungary to investigate the amount and temporal and spatial variations of fossil fuel CO2 in the near surface atmosphere we developed a mobile and high-precision atmospheric CO2 monitoring station. The measuring system is designed for continuous, unattended monitoring of CO2 mixing ratio in the near surface atmosphere based on an Ultramat 6F (Siemens) infrared gas analyzer. In the station one atmospheric 14CO2 sampling unit is also installed which was developed and widely used for more than one decade by ATOMKI. Using the FOCAM station we plan to determine the fossil fuel CO2 amount in the air of different cities and other average industrial regions in Hungary.

Installed: 2008.

Graphite target production line for AMS radiocarbon measurements

Radiocarbon dating by gas proportional counting has a long tradition in the Institute. Recently we would like to enlarge our 14C dating possibilities by purchasing of a Single Stage Accelerator Mass Spectrometer (SSAMS).

To establish a modern AMS laboratory the whole lab building was completely renewed implementing an enhanced air filtration and conditioning system. The investment was financed by Isotoptech Ltd and supported by the Baross Gábor Innovation Programme.

Sample preparation systems for AMS radiocarbon measurements are currently under development. The first Hungarian AMS graphite production facility was established in 2005 and the purity of the graphite was tested in CEDAD, University of Salento. Several sets of blanks and known-activity graphite samples were processed and tested in cooperation with the NSF Arizona 14C AMS facility in Tucson, Arizona. Although all of the graphite samples from ATOMKI were processed in a completely different manner than is usual at the NSF Arizona Lab, the mean value of the VIRI (Fifth International Radiocarbon Intercomparison) B samples measured by the NSF Arizona AMS is consistent with measured by gas proportional counting technique in ATOMKI and with the consensus value for this sample.

Further information

Contact: svingor at


K-Ar Laboratory

The K-Ar method is suitable to determine the age of geological objects. The 40K izotope, that can be found in stones, decays with 109 years half life into 40Ar.

Contact: balogh at


Other equipment

High intensity Co-60 gamma source

Gamma photon energy 1173 keV and 1332 keV.
Activity on 2009.02.23: 3.7 TBq
Dose-rate at 1 m distance: 1.13 Gy/h

The source is available for various applications:
Partners: University of Debrecen, KFKI-RMKI, CERN: CMS, ALICE, ATLAS; ESA: SSC
Major achievements employing this facility:

Several tests for selecting radiation tolerant photonics-electronics materials, structures and components developed for applications in harsh radiation environments in the following fields:

Expected outcomes:

New knowledge in the fields of particle physics, planetary and earth sciences, space sciences, bio-medical sciences, radiation protection, radiotherapy.

Effects on society:

The Co-60 source is part of the national portfolio of irradiation facilities in Hungary. It contributes to the development of new competences, high value added products and services offered by domestic and international partners in the R&D&I and education and SME sectors.

Contact: dajko at


B-level Radiochemical Laboratory

Radioactive isotopes produced on the 20 MeV cyclotron of the ATOMKI are chemically separated from the irradiated targets in the B-level Radiochemical Laboratory. From these radioisotopes radiopharmaceuticals can be synthesized for diagnostic (PET: 11C, 61Cu, 64Cu, 76Br, 124I; SPECT: 123I, 111In) and therapeutic (103Pd, 131Cs, 165Er, 169Yb, 186Re, 209,210At) applications. Part of these labeled compounds can be used also for agricultural investigations and animal diagnostics.

In the laboratory we also perform catalytic and corrosion investigations as well as analysis of radioactive water samples. The laboratory is equipped with instruments and devices as well as sterile rooms for the above works.

The B-level Radiochemical Laboratory is part of the ATOMKI Cyclotron Laboratory.

Contact: kovacsz at

CMS Muon Barrel Positioning System calibration laboratory (CERN)

In this laboratory submillimeter precise calibration procedures of the alignment elements of the CMS Muon System are performed. These calibration methods make use the combination of both the high precision industrial alignment technologies (LTD, photogrammetry) and the custom built electonics and informatics system designed for the CMS Muon Alignment Project. Devices that are calibrated there are able determine the position of the CMS Drift Tubes within the system of coordinates of the CMS experiment. Achieved precision of this position measurement is about 200 microns everywhere inside the full volume of CMS. Beyond the aforementioned devices located and used in the laboratory, expertise gained during the design, buliding and operatrion phase of the Muon Alignment System could be used in future projects on alignment.

Contact: szillasi at