Edil Mustafin | GSI Darmstadt (original) (raw)

Papers by Edil Mustafin

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Within the frame of the EuCARD program, the GSI Darmstadt is performing accelerator R in workpack... more Within the frame of the EuCARD program, the GSI Darmstadt is performing accelerator R in workpackage 8: ColMat. The effort is focused on materials important for building the FAIR accelerator facility at GSI and the LHC upgrade at CERN. Accelerator components and especially protection devices have to be operated in high dose environments. The radiation hazard occurs either by the primary proton and ion beams or the secondary radiation. Detailed numerical simulations have been carried out to study the damage caused to solid targets by the full impact of the LHC beam as well as the SPS beam. Tungsten, copper and graphite targets have been studied. Experimental an theoretical studies on radiation damage on materials used for the LHC upgrade and the FAIR accelerators are performed at the present GSI experimental facilities. Technical decisions based on these results will have an impact on the FAIR component specifications. A cryogenic ion-catcher prototype will be constructed and tested....

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003

High-energy protons bombarding matter are stopped mostly by inelastic collisions with the target ... more High-energy protons bombarding matter are stopped mostly by inelastic collisions with the target nuclei, inducing a high level of radio-activation. In contrary, it is shown here that the penetration depth of heavy ions with energy below 1 GeV=u is mostly determined by the electronic stopping power. This results in lower activation levels, which is important for estimating the tolerable beam loss limit in high intensity heavy ion accelerators. A method to calculate the total neutron yield of heavy ions bombarding thick targets is proposed, validated by measured data and applied to the tolerable beam loss limit in heavy

Nuclear Technology, 2009

Abstract The activation of structures and surroundings of new high-intensity heavy-ion accelerato... more Abstract The activation of structures and surroundings of new high-intensity heavy-ion accelerators like the Facility for Antiproton and Ion Research (FAIR) is an important issue. Monte Carlo codes such as FLUKA allow the prediction of the production of individual radioactive isotopes and the induced radioactivity that causes the main contribution to the radiation exposure of personnel. The work is a benchmark study of activation predictions for uranium beams with 500 and 950 MeV/u deposited in copper and stainless steel targets. Precise gamma spectrometry measurements for isotope identification have been carried out with a HPGe detector. All gamma-emitting radionuclides with half-lives of more than 2 days that contribute significantly to the residual dose rates have been studied. The benchmark study shows that FLUKA is a suitable code for the prediction of induced radioactivity at medium-energy heavy-ion accelerators.

EuCARD is a joined accelerator R&D initiative funded by the EU. Within this program, GSI Helmholt... more EuCARD is a joined accelerator R&D initiative funded by the EU. Within this program, GSI Helmholtzzentrum f¨ur Schwerionenforschung in Darmstadt is performing R&D on materials for accelerators and collimators in workpack- age 8 (ColMat). GSI covers prototyping and testing of a cryogenic ion catcher for FAIR’s main synchrotron SIS100, simulations and studies on activation of accelerator com- ponents e.g. halo collimatiors as well as irradiation ex- periments on materials foreseen to be used in FAIR ac- celerators and the LHC upgrade program. Carbon-carbon composites, silicon carbide and copper-diamond compos- ite samples have been irradiated with heavy ions at var- ious GSI beamlines and their radiation induced property changes were characterized. Numerical simulations on the possible damage by LHC and SPS beams to different tar- gets have been performed. Simulations and modelling of activation and long term radiation induced damage to ac- celerator components have started. A prototy...

Progress in Nuclear Science and Technology, 2014

We present new results of the experimental study of the residual activity induced by high-energy ... more We present new results of the experimental study of the residual activity induced by high-energy heavy ions in carbon-based materials: graphite and carbon composite. The graphite target was irradiated by 500 MeV/u tantalum ions and the carbon composite target was irradiated by 500 MeV/u uranium ions. The targets were assembled from a stack of thin plates and after irradiation were investigated using gamma-ray spectroscopy. Main tasks of the experimental study were: 1) to identify induced radioactive isotopes in the gamma spectra of the measured samples, 2) to estimate residual activity of the identified isotopes and 3) to determine depth profiles of the residual activity of individual isotopes. Depth profiling of the residual activity of all identified isotopes was performed by measurements of individual target plates. According to the depth profiles, the identified isotopes can be classified into two main groups: target-nuclei fragments and projectile fragments. In the measured gamma spectra of the carbon-based materials irradiated by heavy ions only one target-nuclei fragment, 7 Be, was identified. All the rest of the isotopes detected using gamma-ray spectroscopy, are the projectile fragments of various masses. The experimental data were compared with Monte Carlo simulations performed by FLUKA code in order to verify validity of physical models and data libraries implemented in the code. A satisfactory agreement between the experiment and the simulations was observed.

Radiation Effects and Defects in Solids, 2015

Polymer Degradation and Stability, 2012

The breakdown voltage of radiation damaged polyimide is investigated. Motivated by the applicatio... more The breakdown voltage of radiation damaged polyimide is investigated. Motivated by the application of polyimide as insulator used in ion accelerator magnets of the future Facility for Antiproton and Ion Research (FAIR), two different kinds of polyimides were irradiated with different high energetic ion beams (p, C, Ni, Ru and Au) and with gamma radiation from a Co-60 source. Breakdown voltage measurements showed that the dielectric strength of irradiated polyimide was found to decrease as a function of the irradiation dose. The rate of decrease was found to be dependent on i) the type of radiation and ii) the angle of incident beam. Gamma and proton radiation leads only to minor changes in the observed dose regime while heavy ion irradiation drastically decreases the dielectric strength at even low doses. For heavy ion irradiation the rate of decrease is found to be dependent on the energy loss of the used particle beams. Furthermore an increase in incident beam angle, i.e. closer to the surface normal gives a lower decrease in the dielectric strength suggesting that the breakdown follows the path length of the produced ion tracks. Weibull analysis was used on a selected data set to discuss failure expectations for the later FAIR magnets.

The loss of ions in the slow extraction area of the SIS100 accelerator planned for FAIR project c... more The loss of ions in the slow extraction area of the SIS100 accelerator planned for FAIR project can be dangerous for the electronic equipment and fiber optics situated inside the tunnel and niches around. During slow extraction the lost ions irradiate the yoke of the quadrupole magnets and the collimator and produce neutron flux, which can damage the electronic devices or trigger single event upset (SEU). Moreover, fiber optic cores fade under the action of irradiation. In the present work an investigation of the dose distribution and neutron fluxes, as well as a calculation of lifetime of the electronics and fiber optics in different places of the tunnel has been done. By using these results the design of the niches and shielding is planned.

During the slow extraction from SIS100 synchrotron 5% of the beam will hit the wires of the elect... more During the slow extraction from SIS100 synchrotron 5% of the beam will hit the wires of the electrostatic septum and will be lost. These losses produce very high radiation damage to the superconducting quadrupole doublet situated downstream of the extraction point [1]. These beam losses were simulated with the help of the Fluka [2], [3] code for U and Ne beams. Non-zero cross-section and non-zero angular divergence were assumed for the lost beam, allowing distributed modeling of the slow extraction losses. The radiation damage to different layers of the superconducting (s.c.) quadrupole cables was calculated. The lifetime of the s.c. cables of the quadrupoles was found to be too short. Thus, alternative quadrupole designs with higher radiation tolerances were investigated: with stainless steel shielding of the s.c. cables and with a gap in the mid-plane between the s.c. cables. SIMULATED PART OF THE SLOW EXTRACTION The modeled part of the slow extraction area consisted of the electr...

Nuclear Technology, 2009

Quantification of residual activity is an important issue for high-power accelerator facilities l... more Quantification of residual activity is an important issue for high-power accelerator facilities like the Facility for Antiprotons and Ion Research (FAIR). While beam losses of 1 W/m are at present accepted for proton machines as a tolerable level for ensuring “hands-on” maintenance, the beam-loss tolerances for high-energy heavy-ion accelerators have not yet been quantified. The Monte Carlo particle transport codes FLUKA and SHIELD were used to simulate the irradiation of copper and stainless steel by different ions (1H, 4He, 12C, 20Ne, 40Ar, 84Kr, 132Xe, 197Au, and 238U) with energies typical for FAIR machines. Copper and stainless steel were chosen as common materials for accelerator structures. The isotope inventory contributing >90% to the total residual activity does not depend on the projectile species; it depends only on the target material and projectile energy. The activity per watt induced by a 1 GeV/u heavy ion is lower than the activity per watt induced by a 1-GeV pro...

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Abstract This work is a continuation of a series of publications devoted to the depth-profiling o... more Abstract This work is a continuation of a series of publications devoted to the depth-profiling of activity induced by high-energy heavy-ions in selected accelerator-construction materials. An aluminum target in the stacked-foil configuration was irradiated by 300 MeV/u 124Xe ions. Depth-profiles of induced activity of selected nuclides were obtained by gamma-spectroscopy of individual target foils. Special attention was paid to heavy projectile-fragments and their ranges. Main profile-shape categories have been defined to illustrate typical shapes of the measured profiles. A new quantity – an activation depth – has been introduced and its dependence on the fragment atomic and mass number has been found. It is shown that this quantity is fragment-specific and can substitute the range, which is very useful in case of the activation experiments using the stacked-foil targets with depth resolution limited by the foil thickness. Apart from gamma-spectroscopic parameters and fundamental nuclear properties of the nuclides, the activation depth can be used as an additional nuclide-attribute supporting identification of the projectile fragments and verification of the range-calculating computer codes. Although the main attention of this paper is paid to presenting the new experimental results, comparison with supporting simulations with the aid of ATIMA and FLUKA2020 is included, too.

Radiation Effects and Defects in Solids, 2015

Some soft magnetic metallic glasses are considered for use in magnetic cores of accelerator radio... more Some soft magnetic metallic glasses are considered for use in magnetic cores of accelerator radio frequency cavities. Due to losses of the circulating ion beam, they may be exposed to irradiation by different ions at different energies. This paper presents data and review results of irradiation experiments concerning the influence of high-energy heavy ions on magnetic susceptibility of VITROPERM®-type metallic glasses. Samples of the VITROPERM® magnetic ribbons were irradiated by Au, Xe and U ions at 11.1 MeV/A (per nucleon) and 5.9 MeV/A, respectively. Irradiation fluences from 1 × 1011 up to 1 × 1013 ions/cm2 were applied. In case of the Au and U ions, the total fluence was accumulated in one beamtime, whereas two separate beamtimes were used to accumulate the final fluence in case of the Xe ions. Relative change in the samples’ magnetic susceptibility after and before irradiation was evaluated as a function of the irradiation fluence. The irradiation experiments were performed wi...

ABSTRACT As a preparatory work for constructing the FAIR facility at GSI, samples of stainless st... more ABSTRACT As a preparatory work for constructing the FAIR facility at GSI, samples of stainless steel and copper were irradiated by 950 MeV/u 238U ions and depth-profiles of residual activity were measured by gamma-ray spectroscopy. The isotopes with dominating contribution to the residual activity were identified and their contributions were quantified. In contrast to the previous study performed at lower energies, the activities could no longer be determined from the full-assembly target measurements. Depth-profiling of residual activity of all identified isotopes had to be completed by measurements of individual target foils. The activity contributions were then obtained by integration of the depth-profiles.

Progress in Nuclear Science and Technology, 2014

We present new results of the experimental study of the residual activity induced by high-energy ... more We present new results of the experimental study of the residual activity induced by high-energy heavy ions in carbon-based materials: graphite and carbon composite. The graphite target was irradiated by 500 MeV/u tantalum ions and the carbon composite target was irradiated by 500 MeV/u uranium ions. The targets were assembled from a stack of thin plates and after irradiation were investigated using gamma-ray spectroscopy. Main tasks of the experimental study were: 1) to identify induced radioactive isotopes in the gamma spectra of the measured samples, 2) to estimate residual activity of the identified isotopes and 3) to determine depth profiles of the residual activity of individual isotopes. Depth profiling of the residual activity of all identified isotopes was performed by measurements of individual target plates. According to the depth profiles, the identified isotopes can be classified into two main groups: target-nuclei fragments and projectile fragments. In the measured gamma spectra of the carbon-based materials irradiated by heavy ions only one target-nuclei fragment, 7 Be, was identified. All the rest of the isotopes detected using gamma-ray spectroscopy, are the projectile fragments of various masses. The experimental data were compared with Monte Carlo simulations performed by FLUKA code in order to verify validity of physical models and data libraries implemented in the code. A satisfactory agreement between the experiment and the simulations was observed.

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Within the frame of the EuCARD program, the GSI Darmstadt is performing accelerator R in workpack... more Within the frame of the EuCARD program, the GSI Darmstadt is performing accelerator R in workpackage 8: ColMat. The effort is focused on materials important for building the FAIR accelerator facility at GSI and the LHC upgrade at CERN. Accelerator components and especially protection devices have to be operated in high dose environments. The radiation hazard occurs either by the primary proton and ion beams or the secondary radiation. Detailed numerical simulations have been carried out to study the damage caused to solid targets by the full impact of the LHC beam as well as the SPS beam. Tungsten, copper and graphite targets have been studied. Experimental an theoretical studies on radiation damage on materials used for the LHC upgrade and the FAIR accelerators are performed at the present GSI experimental facilities. Technical decisions based on these results will have an impact on the FAIR component specifications. A cryogenic ion-catcher prototype will be constructed and tested....

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003

High-energy protons bombarding matter are stopped mostly by inelastic collisions with the target ... more High-energy protons bombarding matter are stopped mostly by inelastic collisions with the target nuclei, inducing a high level of radio-activation. In contrary, it is shown here that the penetration depth of heavy ions with energy below 1 GeV=u is mostly determined by the electronic stopping power. This results in lower activation levels, which is important for estimating the tolerable beam loss limit in high intensity heavy ion accelerators. A method to calculate the total neutron yield of heavy ions bombarding thick targets is proposed, validated by measured data and applied to the tolerable beam loss limit in heavy

Nuclear Technology, 2009

Abstract The activation of structures and surroundings of new high-intensity heavy-ion accelerato... more Abstract The activation of structures and surroundings of new high-intensity heavy-ion accelerators like the Facility for Antiproton and Ion Research (FAIR) is an important issue. Monte Carlo codes such as FLUKA allow the prediction of the production of individual radioactive isotopes and the induced radioactivity that causes the main contribution to the radiation exposure of personnel. The work is a benchmark study of activation predictions for uranium beams with 500 and 950 MeV/u deposited in copper and stainless steel targets. Precise gamma spectrometry measurements for isotope identification have been carried out with a HPGe detector. All gamma-emitting radionuclides with half-lives of more than 2 days that contribute significantly to the residual dose rates have been studied. The benchmark study shows that FLUKA is a suitable code for the prediction of induced radioactivity at medium-energy heavy-ion accelerators.

EuCARD is a joined accelerator R&D initiative funded by the EU. Within this program, GSI Helmholt... more EuCARD is a joined accelerator R&D initiative funded by the EU. Within this program, GSI Helmholtzzentrum f¨ur Schwerionenforschung in Darmstadt is performing R&D on materials for accelerators and collimators in workpack- age 8 (ColMat). GSI covers prototyping and testing of a cryogenic ion catcher for FAIR’s main synchrotron SIS100, simulations and studies on activation of accelerator com- ponents e.g. halo collimatiors as well as irradiation ex- periments on materials foreseen to be used in FAIR ac- celerators and the LHC upgrade program. Carbon-carbon composites, silicon carbide and copper-diamond compos- ite samples have been irradiated with heavy ions at var- ious GSI beamlines and their radiation induced property changes were characterized. Numerical simulations on the possible damage by LHC and SPS beams to different tar- gets have been performed. Simulations and modelling of activation and long term radiation induced damage to ac- celerator components have started. A prototy...

Progress in Nuclear Science and Technology, 2014

We present new results of the experimental study of the residual activity induced by high-energy ... more We present new results of the experimental study of the residual activity induced by high-energy heavy ions in carbon-based materials: graphite and carbon composite. The graphite target was irradiated by 500 MeV/u tantalum ions and the carbon composite target was irradiated by 500 MeV/u uranium ions. The targets were assembled from a stack of thin plates and after irradiation were investigated using gamma-ray spectroscopy. Main tasks of the experimental study were: 1) to identify induced radioactive isotopes in the gamma spectra of the measured samples, 2) to estimate residual activity of the identified isotopes and 3) to determine depth profiles of the residual activity of individual isotopes. Depth profiling of the residual activity of all identified isotopes was performed by measurements of individual target plates. According to the depth profiles, the identified isotopes can be classified into two main groups: target-nuclei fragments and projectile fragments. In the measured gamma spectra of the carbon-based materials irradiated by heavy ions only one target-nuclei fragment, 7 Be, was identified. All the rest of the isotopes detected using gamma-ray spectroscopy, are the projectile fragments of various masses. The experimental data were compared with Monte Carlo simulations performed by FLUKA code in order to verify validity of physical models and data libraries implemented in the code. A satisfactory agreement between the experiment and the simulations was observed.

Radiation Effects and Defects in Solids, 2015

Polymer Degradation and Stability, 2012

The breakdown voltage of radiation damaged polyimide is investigated. Motivated by the applicatio... more The breakdown voltage of radiation damaged polyimide is investigated. Motivated by the application of polyimide as insulator used in ion accelerator magnets of the future Facility for Antiproton and Ion Research (FAIR), two different kinds of polyimides were irradiated with different high energetic ion beams (p, C, Ni, Ru and Au) and with gamma radiation from a Co-60 source. Breakdown voltage measurements showed that the dielectric strength of irradiated polyimide was found to decrease as a function of the irradiation dose. The rate of decrease was found to be dependent on i) the type of radiation and ii) the angle of incident beam. Gamma and proton radiation leads only to minor changes in the observed dose regime while heavy ion irradiation drastically decreases the dielectric strength at even low doses. For heavy ion irradiation the rate of decrease is found to be dependent on the energy loss of the used particle beams. Furthermore an increase in incident beam angle, i.e. closer to the surface normal gives a lower decrease in the dielectric strength suggesting that the breakdown follows the path length of the produced ion tracks. Weibull analysis was used on a selected data set to discuss failure expectations for the later FAIR magnets.

The loss of ions in the slow extraction area of the SIS100 accelerator planned for FAIR project c... more The loss of ions in the slow extraction area of the SIS100 accelerator planned for FAIR project can be dangerous for the electronic equipment and fiber optics situated inside the tunnel and niches around. During slow extraction the lost ions irradiate the yoke of the quadrupole magnets and the collimator and produce neutron flux, which can damage the electronic devices or trigger single event upset (SEU). Moreover, fiber optic cores fade under the action of irradiation. In the present work an investigation of the dose distribution and neutron fluxes, as well as a calculation of lifetime of the electronics and fiber optics in different places of the tunnel has been done. By using these results the design of the niches and shielding is planned.

During the slow extraction from SIS100 synchrotron 5% of the beam will hit the wires of the elect... more During the slow extraction from SIS100 synchrotron 5% of the beam will hit the wires of the electrostatic septum and will be lost. These losses produce very high radiation damage to the superconducting quadrupole doublet situated downstream of the extraction point [1]. These beam losses were simulated with the help of the Fluka [2], [3] code for U and Ne beams. Non-zero cross-section and non-zero angular divergence were assumed for the lost beam, allowing distributed modeling of the slow extraction losses. The radiation damage to different layers of the superconducting (s.c.) quadrupole cables was calculated. The lifetime of the s.c. cables of the quadrupoles was found to be too short. Thus, alternative quadrupole designs with higher radiation tolerances were investigated: with stainless steel shielding of the s.c. cables and with a gap in the mid-plane between the s.c. cables. SIMULATED PART OF THE SLOW EXTRACTION The modeled part of the slow extraction area consisted of the electr...

Nuclear Technology, 2009

Quantification of residual activity is an important issue for high-power accelerator facilities l... more Quantification of residual activity is an important issue for high-power accelerator facilities like the Facility for Antiprotons and Ion Research (FAIR). While beam losses of 1 W/m are at present accepted for proton machines as a tolerable level for ensuring “hands-on” maintenance, the beam-loss tolerances for high-energy heavy-ion accelerators have not yet been quantified. The Monte Carlo particle transport codes FLUKA and SHIELD were used to simulate the irradiation of copper and stainless steel by different ions (1H, 4He, 12C, 20Ne, 40Ar, 84Kr, 132Xe, 197Au, and 238U) with energies typical for FAIR machines. Copper and stainless steel were chosen as common materials for accelerator structures. The isotope inventory contributing >90% to the total residual activity does not depend on the projectile species; it depends only on the target material and projectile energy. The activity per watt induced by a 1 GeV/u heavy ion is lower than the activity per watt induced by a 1-GeV pro...

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Abstract This work is a continuation of a series of publications devoted to the depth-profiling o... more Abstract This work is a continuation of a series of publications devoted to the depth-profiling of activity induced by high-energy heavy-ions in selected accelerator-construction materials. An aluminum target in the stacked-foil configuration was irradiated by 300 MeV/u 124Xe ions. Depth-profiles of induced activity of selected nuclides were obtained by gamma-spectroscopy of individual target foils. Special attention was paid to heavy projectile-fragments and their ranges. Main profile-shape categories have been defined to illustrate typical shapes of the measured profiles. A new quantity – an activation depth – has been introduced and its dependence on the fragment atomic and mass number has been found. It is shown that this quantity is fragment-specific and can substitute the range, which is very useful in case of the activation experiments using the stacked-foil targets with depth resolution limited by the foil thickness. Apart from gamma-spectroscopic parameters and fundamental nuclear properties of the nuclides, the activation depth can be used as an additional nuclide-attribute supporting identification of the projectile fragments and verification of the range-calculating computer codes. Although the main attention of this paper is paid to presenting the new experimental results, comparison with supporting simulations with the aid of ATIMA and FLUKA2020 is included, too.

Radiation Effects and Defects in Solids, 2015

Some soft magnetic metallic glasses are considered for use in magnetic cores of accelerator radio... more Some soft magnetic metallic glasses are considered for use in magnetic cores of accelerator radio frequency cavities. Due to losses of the circulating ion beam, they may be exposed to irradiation by different ions at different energies. This paper presents data and review results of irradiation experiments concerning the influence of high-energy heavy ions on magnetic susceptibility of VITROPERM®-type metallic glasses. Samples of the VITROPERM® magnetic ribbons were irradiated by Au, Xe and U ions at 11.1 MeV/A (per nucleon) and 5.9 MeV/A, respectively. Irradiation fluences from 1 × 1011 up to 1 × 1013 ions/cm2 were applied. In case of the Au and U ions, the total fluence was accumulated in one beamtime, whereas two separate beamtimes were used to accumulate the final fluence in case of the Xe ions. Relative change in the samples’ magnetic susceptibility after and before irradiation was evaluated as a function of the irradiation fluence. The irradiation experiments were performed wi...

ABSTRACT As a preparatory work for constructing the FAIR facility at GSI, samples of stainless st... more ABSTRACT As a preparatory work for constructing the FAIR facility at GSI, samples of stainless steel and copper were irradiated by 950 MeV/u 238U ions and depth-profiles of residual activity were measured by gamma-ray spectroscopy. The isotopes with dominating contribution to the residual activity were identified and their contributions were quantified. In contrast to the previous study performed at lower energies, the activities could no longer be determined from the full-assembly target measurements. Depth-profiling of residual activity of all identified isotopes had to be completed by measurements of individual target foils. The activity contributions were then obtained by integration of the depth-profiles.

Progress in Nuclear Science and Technology, 2014

We present new results of the experimental study of the residual activity induced by high-energy ... more We present new results of the experimental study of the residual activity induced by high-energy heavy ions in carbon-based materials: graphite and carbon composite. The graphite target was irradiated by 500 MeV/u tantalum ions and the carbon composite target was irradiated by 500 MeV/u uranium ions. The targets were assembled from a stack of thin plates and after irradiation were investigated using gamma-ray spectroscopy. Main tasks of the experimental study were: 1) to identify induced radioactive isotopes in the gamma spectra of the measured samples, 2) to estimate residual activity of the identified isotopes and 3) to determine depth profiles of the residual activity of individual isotopes. Depth profiling of the residual activity of all identified isotopes was performed by measurements of individual target plates. According to the depth profiles, the identified isotopes can be classified into two main groups: target-nuclei fragments and projectile fragments. In the measured gamma spectra of the carbon-based materials irradiated by heavy ions only one target-nuclei fragment, 7 Be, was identified. All the rest of the isotopes detected using gamma-ray spectroscopy, are the projectile fragments of various masses. The experimental data were compared with Monte Carlo simulations performed by FLUKA code in order to verify validity of physical models and data libraries implemented in the code. A satisfactory agreement between the experiment and the simulations was observed.