Christian Wolfgang Fabjan

Publication List Details

Period

1990 - 2008

Number

195

Co-Authors

Beam Loss Calibration Studies for High Energy Proton Accelerators (2008)

Stockner, M, Fabjan, Christian Wolfgang

CERN's Large Hadron Collider (LHC) is a proton collider with injection energy of 450 GeV and collision energy of 7 TeV. Superconducting magnets keep the particles circulating in two counter rotating...

Low Mass Dimuon Production in Proton-Nucleus Collisions at 400 GeV at the CERN-SPS (2008)

Wöhri, Hermine K, Fabjan, Christian Wolfgang

During the June 2002 run the fixed-target experiment NA60 collected around 600000 dimuon triggers in proton-nucleus collisions at 400 GeV. The target system consisted of Beryllium, Indium and Lead...

Energy Measurement of Hadrons with the CERN ATLAS Calorimeter (2008)

Speckmayer, Peter, Fabjan, Christian Wolfgang, Carli, Tancredi

The ATLAS detector is a multi-purpose detector measuring the energy and direction of particles produced in proton-proton collisions at a center of mass energy of 14 TeV provided by the Large Hadron...

Optimization of the light extraction from heavy inorganic scintillators (2008)

Kronberger, Matthias, Fabjan, Christian Wolfgang, Lecoq, P

Inorganic scintillators are widely used in modern medical imaging modalities as converter for the X- and gamma-radiation that is used to obtain information about the interior of the body. Likewise,...

Studies for the Commissioning of the CERN CMS Silicon Strip Tracker (2008)

Bloch, Christoph, Fabjan, Christian Wolfgang, Abbaneo, Duccio

In 2008 the Large Hardon Collider (LHC) at CERN will start producing proton-proton collisions of unprecedented energy. One of its main experiments is the Compact Muon Solenoid (CMS), a general...

Study of a Positron Emission Mammograph (2007)

Trummer, J, Fabjan, Christian Wolfgang, Lecoq, P

Today breast cancer is among the most common causes of death for women. One in eight women will develop a tumour in her breast at least once in her lifetime. An early detection of the cancer is...

Classification of the LHC BLM Ionization Chamber (2007)

Stockner, M, Dehning, B, Fabjan, Christian Wolfgang, Holzer, E B, Kramer, Daniel

The LHC beam loss monitoring (BLM) system must prevent the super conducting magnets from quenching and protect the machine components from damage. The main monitor type is an ionization chamber....

Measurements and Simulations of Ionization Chamber Signals in Mixed Radiation Fields for the LHC BLM System (2006)

Dehning, B, Fabjan, Christian Wolfgang, Ferioli, G, Holzer, EB, Stockner, M

The LHC beam loss monitoring (BLM) system must prevent the super conducting magnets from quenching and protect the machine components from damage. The main monitor type is an ionization chamber....

The Energy Response of the ATLAS Calorimeter System (2006)

Schlager, G, Fabjan, Christian Wolfgang, Carli, T, Henriques, A

The Large Hadron Collider (LHC) currently under construction at the European Organization for Nuclear Research (CERN) in Geneva will collide two proton beams with a center-of-mass energy of 14 TeV....

The ALICE Silicon Pixel Detector System (2006)

Fadmar Osmic, FO, Fabjan, Christian Wolfgang

The European Organization for Particle Physics (CERN) in Geneva is currently constructing the Large Hadron Collider (LHC), which will allow the study of the subnuclear ranges of physics with an...

Development of Large Area CsI Photocathodes for the ALICE/HMPID RICH Detector (2006)

Hoedlmoser, H, Fabjan, Christian Wolfgang, Schyns, E

The work carried out within the framework of this PhD deals with the measurement of the photoelectric properties of large area thin film Cesium Iodide (CsI) photocathodes (PCs) which are to be used...

Optimizing the Energy Measurement of the ATLAS Electromagnetic Calorimeter (2006)

Lampl, W, Fabjan, Christian Wolfgang, Aleksa, Martin

This PhD-thesis addresses the calibration of the ATLAS electromagnetic calorimeter. ATLAS is a high-energy physics experiment at the Large Hadron Collider (LHC) which is currently under construction...

Benchmarking of the simulation of the ATLAS Hall background (2004)

Vincke, Helmut, Fabjan, Christian Wolfgang, Müller, Hansjörg

The LHC, mainly to be used as a proton-proton collider, providing collisions at energies of 14 TeV, will be operational in the year 2005. ATLAS, one of the LHC experiments, will provide high accuracy...

Development and Test of the Cooling System for the ATLAS Hadron Tile Calorimeter (2004)

Schlager, Gerolf, Fabjan, Christian Wolfgang

The ATLAS detector is a general-purpose experiment for proton-proton collisions designed to investigate the full range of physical processes at the Large Hadron Collider (LHC). The ATLAS Tile Hadron...

Calorimetry for Particle Physics (2003)

Fabjan, Christian Wolfgang, Gianotti, F

Calorimetry has become a well-understood, powerful, and versatile measurement method. Besides perfecting this technique to match increasingly demanding operation at high-energy particle accelerators,...

Collider detectors for multi-TeV particles (2003)

Fabjan, Christian Wolfgang

Collider detectors for multi-TeV particles are complex instruments that detect and measure simultaneously the parameters of thousands of particles in a detector volume of 10,000--20,000~m$^3$. This...

High transverse mass pion and proton correlations in central PbPb collisions at 17GeV/nucleon (2003)

Bearden, I G, Bøggild, H, Boissevain, J G, Christiansen, P H L, Conin, L, Dodd, J, ...

For central PbPb collisions at a center of mass energy of 17.3 GeV/nucleon we have made the first two-dimensional measurement of the pp correlation function. These data extend the range of previous...

High transverse mass pion and proton correlations in central PbPb collisions at 17GeV/nucleon (2003)

Bearden, I G, Bøggild, H, Boissevain, J G, Christiansen, P H L, Conin, L, Dodd, J, ...

For central PbPb collisions at a center of mass energy of 17.3 GeV/nucleon we have made the first two-dimensional measurement of the pp correlation function. These data extend the range of previous...

Benchmarking the Particle Background in the LHC Experiments (2002)

Gschwendtner, E, Fabjan, Christian Wolfgang

The experiments for the Large Hadron Collider LHC at CERN have to work for 15 years in the presence of a very high particle background of photons in the energy range from 100\,keV to 10\,MeV and...

One and two dimensional analysis of 3$\pi$ correlations measured in Pb+Pb interactions (2001)

Bearden, I G, Bøggild, H, Boissevain, J G, Christiansen, P, Conin, L, Dodd, J, ...

$\pi^{-}\pi^{-}\pi^{-}$ correlations from Pb+Pb collisions at 158 GeV/c per nucleon are presented as measured by the focusing spectrometer of the NA44 experiment at CERN. The three-body effect is...

Response of a BGO detector to photon and neutron sources: simulations and measurements (2001)

Vincke, H H, Gschwendtner, E, Fabjan, Christian Wolfgang, Otto, T

In this paper Monte Carlo simulations (FLUKA) and measurements of the response of a BGO detector are reported. %For the measurements different radioactive sources were used to irradiate the BGO...

Benchmarking the Particle Background in the Large Hadron Collider Experiments (2001)

Gschwendtner, Edda, Vincke, Helmut H, Fabjan, Christian Wolfgang, Hessey, N P, Otto, Thomas

Background benchmarking measurements have been made to check the low-energy processes which will contribute via nuclear reactions to the radiation background in the LHC experiments at CERN....

Dependence of Drift Tube Performance on the Anode Wire Diameter (2000)

Deile, M, Aleksa, Martin, Dubbert, J, Fabjan, Christian Wolfgang, Gruhn, Charles R, Hessey, N P, ...

Cylindrical pressurized drift tubes with different anode wire diameters wereoperated in a 170~GeV muon test beam. The dependences of spatialresolution, efficiency and streamer probability on the...

Atlas Meeting (2000)

Daël, A, Fabjan, Christian Wolfgang, Linde, Frank L, Towndrow, Edwin F

-Technical status of the barrel toroid magnet -Technical status of the endcap toroid magnet -Muon spectrometer overview -Status of the MDT's

HERWIG SCHOPPER'S 70 th Birthday (2000)

Llewellyn Smith, Christopher Hubert, Chien Shiung Wu, Danielmeyer, H G, De Rújula, Alvaro, Fabjan, Christian Wolfgang, He Sheng Chen, ...

H.S.-Encounters in Four States H.S.at Cornell Lepton Physics at CERN and Frascati H.S. and the Development News from the Brown Dwarf Front History of the LEP Project My Recollection of the Important...

Resolution limits of drift tubes (1999)

Riegler, W, Aleksa, Martin, Deile, M, Dubbert, J, Fabjan, Christian Wolfgang, Gruhn, Charles R, ...

Measurements of the drift-tube response to charged particle tracks are compared with a complete simulation. The measured resolution of typically 80\,$\mu$m agrees well with the simulation and allows...

Front-end electronics for drift tubes in a high-rate environment (1999)

Riegler, W, Aleksa, Martin, Deile, M, Dubbert, J, Fabjan, Christian Wolfgang, Gruhn, Charles R, ...

A front-end electronics readout for drift tubes in a high-rate environment is presented. This system allows us to encode several pieces of information (leading edge time, trailing edge time, signal...

Rate effects in high-resolution drift chambers (1999)

Aleksa, Martin, Deile, M, Dubbert, J, Fabjan, Christian Wolfgang, Gruhn, Charles R, Hessey, N P, ...

The impact of high counting rates on the spatial resolution of cylindrical drift tubes is investigated in detail and the results are compared with simulations. Electronics effects and space-charge...

Strange Meson Enhancement in Pb-Pb Collisions (1999)

Bearden, I G, Bøggild, H, Boissevain, J G, Conin, L, Dodd, J, Erazmus, B, ...

The NA44 Collaboration has measured yields and differential distributions of K+, K-, pi+, pi- in transverse kinetic energy and rapidity, around the center-of-mass rapidity in 158 A GeV/c Pb+Pb...

Three pion correlations in sulphur-lead collisions at the CERN SPS (1999)

Bøggild, H, Boissevain, J G, Dodd, J, Esumi, S C, Fabjan, Christian Wolfgang, Ferenc, D, ...

$\pi^+\pi^+\pi^+$ correlations from Sulphur-Lead collisions at 200~GeV/$c$ per nucleon are presented as measured by the focusing spectrometer of experiment NA44 at CERN. We have investigated the...

Two-Proton Correlations near Midrapidity in $p+Pb$ and $S+Pb$ Collisions at the CERN SPS (1998)

Bøggild, H, Boissevain, J G, Conin, L, Dodd, J, Erazmus, B, Esumi, S C, ...

Correlations of two protons emitted near midrapidity in $p+Pb$ collisions at 450 GeV/$c$ and $S+Pb$ collisions at 200$A$ GeV/$c$ are presented, as measured by the NA44 Experiment. The correlation...

High energy Pb + Pb collisions viewed by pion interferometry (1998)

Bearden, I G, Bøggild, H, Boissevain, J G, Dodd, J, Erazmus, B, Esumi, S C, ...

Two-pion correlations from Pb+Pb collisions at 158 GeV/$c$ per nucleon are measured by the NA44 experiment at CERN. Multidimensional fits characterize the emission volume, which is found to be larger...

Excess of continuum dimuon production at masses between threshold and the $J/\psi$ in S-W interactions at 200 GeV/c/nucleon (1998)

Angelis, Aris L S, Anthos, J, Beaulieu, M, Beker, H, Bystrický, J, Catanesi, M G, ...

Results are presented on dimuon production for invariant masses % interval ranging from the dimuon threshold up to the $J/\Psi$ meson. Proton-tungsten and sulphur-tungsten interactions at 200 GeV...

Proton and Antiproton Distributions at Mid-Rapidity in Proton-Nucleus and Sulphur-Nucleus Collisions (1997)

Wolf, K, Bearden, I G, Bøggild, H, Boissevain, J G, Dodd, J, Esumi, S C, ...

Experiment NA44 has measured proton and antiproton distributions at mid-rapidity in sulphur and proton collisions with nuclear targets at 200 and 450 GeV/c per nucleon respectively. The inverse...

Study of vector mesons in dimuon production in a large kinematic region in p-W and S-W interactions at 200 GeV/c/nucleon (1997)

Angelis, Aris L S, Antos, J, Beaulieu, M, Beker, H, Briskin, G M, Bystrický, J, ...

Results are presented on $\rho+\omega$, $\phi$ and $J/\Psi$ production in p--W and $^{32}$S--W interactions at 200~GeV/c/nucleon measured via the dimuon decay in a large kinematic region. The data...

A threshold imaging Cerenkov detector with CsI photocathodes (1997)

Braem, André, Fabjan, Christian Wolfgang, Franz, A, Kaneta, M, Paic, G, Piuz, François, ...

A Threshold Imaging Cherenkov (TIC) detector, in conjunction with a tracking device and a time-of-flight system, has been developed to allow pion, kaon and proton identification in the 3--8 GeV/$c$...

Multiplicity dependence of the pion source in S+A collisions at the CERN SPS (1997)

Kaimi, K, Bøggild, H, Boissevain, J G, Cherney, M, Dodd, J R, Esumi, S C, ...

The emission of pions from relativistic heavy-ion collisions of S+S, S+Ag and S+Pb at 200 GeV/nucleon is characterized using two-particle interferometry. The multiplicity dependence of the pion...

Collective expansion in high energy heavy ion collisions (1996)

Bearden, I G, Bøggild, H, Boissevain, J G, Dodd, J, Erazmus, B, Esumi, S C, ...

Transverse mass spectra of pions, kaons, and protons from the symmetric heavy-ion collisions 200A$\cdot$GeV S+S and 158A$\cdot$GeV Pb+Pb, measured in the NA44 focusing spectrometer at CERN, are...

Mid-Rapidity Protons in 158A$\cdot$GeV Pb + Pb Collisions (1996)

Bearden, I G, Bøggild, H, Boissevain, J G, Dodd, J, Erazmus, B, Esumi, S C, ...

Proton distributions at mid-rapidity (2 $\le y \le$ 3) have been measured for 158A$\cdot$GeV Pb + Pb collisions in the focusing spectrometer experiment NA44 at CERN. From baryon number conservation...

A study of electron-muon pair production in 450 GeV/c pBe collisions (1996)

Åkesson, T, Almehed, S, Angelis, Aris L S, Antos, J, Atherton, Henry W, Aubry, P, ...

We report on the production of $e^{\pm}\mu^{\mp}$ pairs in $450\GeVc$ {\em pBe} collisions at the CERN SPS. The $e\mu$ signal, which has average missing energy of 21~GeV, is shown to be consistent...

Coulomb effect in single-particle distributions (1996)

Bøggild, H, Boissevain, J G, Dodd, J, Erazmus, B, Esumi, S C, Fabjan, Christian Wolfgang, ...

Single-particle distributions from heavy-ion collisions show the effect of Coulomb interactions on the final state. While a rather strong effect is seen in the ratio pi - / pi+ from central...

Particle identification performance of a straw transition radiation tracker prototype (1995)

Åkesson, T, Carling, H, Dolgoshein, B A, Fabjan, Christian Wolfgang, Farthouat, Philippe, Froidevaux, Daniel, ...

A 864 channel prototype of an integrated straw tracker and transition radiation detector for tracking and electron identification has been tested with and without magnetic field at the CERN SPS. The...

Study of liquid argon dopants for LHC hadron calorimetry (1991)

Cennini, P, Fabjan, Christian Wolfgang, Gonidec, A, Lacarrère, D, Schinzel, D, Seidl, W, ...

Hadron Calorimetry based on the Liquid Argon Ionisation Chamber technique is one of the choice techniques for LHC-experimentation. We propose to study in a systematic way the effect of dopants to LAr...

The AFS hadron calorimeter at the CERN ISR (1990)

Botner, O, Dagan, S, Fabjan, Christian Wolfgang, Gordon, H, Jeffreys, P, Kesseler, G, ...

The hadron calorimeter for the AFS experiment at CERN consists of a fine sampling uranium/copper scintillator sandwich. It is designed for high modularity and will provide azimuthal coverage over 8...

Performance of the AFS-vertex detector at the CERN ISR (1990)

Cockerill, D J A, Fabjan, Christian Wolfgang, Frandsen, Poul Kjaer, Hallgren, A, Heck, B, Hilke, Hans Jürgen, ...

The central detector of the Axial Field Spectrometer (AFS) is a cylindrical drift chamber using a 'bicycle-wheel' geometry. Its design has been optimized for jet-like events with high track...