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

Items from 1 to 16 out of 16 results

article

Mass attenuation coefficients in the range 3.8⩽E⩽11keV, K fluorescence yield and Kβ/Kα relative X-ray emission rate for Ti, V, Fe, Co, Ni, Cu and Zn measured with a tunable monochromatic X-ray source

Y. Ménesguen, M.-C. Lépy

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2477-2486

This work presents new measurements of mass attenuation coefficients in the range 3.8⩽E⩽11keV, K-absorption jump-ratios, Kα and Kβ fluorescence yields for Ti, V, Fe, Co, Ni, Cu and Zn. We use the experimental facility SOLEX, a tunable monochromatic X-ray source combined with an energy-dispersive high-purity germanium detector. The results are compared with theoretical values as well as with other...

article

8MeV electron irradiation effect on the dielectric and optical properties of iminodiacetic acid doped ferroelectric triglycine sulphate crystals

Chitharanjan Rai, Ganesh Sanjeev, S.M. Dharmaprakash

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2510-2514

Single crystal of iminodiacetic acid (5mol%) doped Tri Glycine Sulphate (IDATGS) was grown by slow evaporation from its aqueous solution at constant temperature, using solution growth method. The dielectric constant (ε′) and pyroelectric current (I _P ) were measured over the temperature range of 30–60°C in the ferroelectric direction. The measured values of ε′ and I _P were found to...

article

Evaluation of tissue-equivalent materials to be used as human brain tissue substitute in dosimetry for diagnostic radiology

C.C. Ferreira, R.E.M. Ximenes Filho, J.W. Vieira, A. Tomal, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2515-2521

Tissue-equivalent materials to be used as substitutes for human brain tissue in dosimetry for diagnostic radiology have been investigated in terms of calculated total mass attenuation coefficient (μ/ρ), calculated mass energy-absorption coefficient (μ _en /ρ) and absorbed dose. Measured linear attenuation coefficients (μ) have been used for benchmarking the calculated total mass attenuation...

article

193Ir Mössbauer spectroscopy of Pt–IrO2 nanoparticle catalysts developed for detection and removal of carbon monoxide from air

J.A. Sawicki, K. Marcinkowska, F.E. Wagner

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2544-2555

Mössbauer spectroscopy of 73.0keV gamma-ray transition in ¹⁹³ Ir and supplementary analytical techniques were used to study the microstructure and chemical form of polymer-supported hydrophobic bimetallic Pt–Ir catalysts for detection and removal of CO from humid air at ambient conditions. The catalysts, typically with a composition of 9 wt.% Pt and 1 wt.% Ir, were prepared by incipient wetness...

article

Measurements of Lα, Lβ X-ray production cross sections of Bi by 17–40keV electron impact

Y. Wu, Z. An, Y.M. Duan, M.T. Liu

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2473-2476

We present results of measurements of L _α , L _β X-ray production cross sections for the element Bi (Z=83) by 17–40keV electron impact. The target used in the experiment was prepared by evaporating the element Bi to the thick pure carbon substrate. The effects of multiple scattering of electrons when penetrating the target film, of electrons reflected from the thick pure carbon substrate...

article

Calendar

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2563-2564

article

Characteristics of TiVCrAlZr multi-element nitride films prepared by reactive sputtering

Zue-Chin Chang, Shih-Chang Liang, Sheng Han, Yi-Kun Chen, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2504-2509

Nitride films of multi-element TiVCrAlZr alloy were prepared on silicon substrates by reactive radio-frequency magnetron sputtering under different nitrogen/argon flow ratios ranging from 0% to 66.7%. The alloy film deposited in pure argon exhibited an amorphous structure and a very smooth surface, while a face-center-cubic solid-solution structure with strong (220), (111) to (200) orientation and...

article

Enhancement of ZnO thin film transistor performance by high-dose proton irradiation

Yeon-Keon Moon, Dae-Yong Moon, Sih Lee, Jong-Wan Park

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2522-2526

The object of this study was to improve the performance of ZnO thin film transistors (TFTs) by exposing them to high-dose proton irradiation. A rapid thermal annealing (RTA) process was necessary to improve the interface characteristics between the source–drain electrodes and the channel layer for the high performance of ZnO-TFTs. However, this affected the resistivity of the ZnO channel layer; it...

article

Editorial board

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > IFC

article

On the neutron diffraction in a crystal in the field of a standing laser wave

K.K. Grigoryan, A.G. Hayrapetyan, R.G. Petrosyan

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2539-2543

The possibility of high-energy neutron diffraction in a crystal is shown by applying the solution of time-dependent Schrödinger equation for a neutron in the field of a standing laser wave. The scattering picture is examined within the framework of non-stationary S-matrix theory, where the neutron–laser field interaction is considered exactly and the neutron–crystal interaction is considered as a...

article

A Monte Carlo study of surface sputtering by dual and rotated ion beams

Taha Yasseri, Reiner Kree

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2496-2503

Several, recently proposed methods of surface manufacturing based on ion beam sputtering, which involve dual beam setups, sequential application of ion beams from different directions, or sample rotation, are studied with the method of kinetic Monte Carlo simulation of ion-beam erosion and surface diffusion. In this work, we only consider erosion dominated situations. The results are discussed by...

article

Effect of carbon black on the properties of irradiated recycled polyamide/rubber waste composites

Medhat M. Hassan, Nagwa A. Badway, Azza M. Gamal, Mona Y. Elnaggar, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2527-2534

In the present study, the synergistic effect of carbon black (CB) content % and gamma irradiation on some mechanical, thermal, chemical stability and micro-structural properties of the moulded waste polyamide copolymer/recycled waste rubber powder (rPA/WRP) 50/50 was investigated. The ternary composites of CB concentrations, 6, 12, 18, and 24wt.%, were irradiated with doses of 50, 100, 150 and 200kGy...

article

The jackknife as an approach for uncertainty assessment in gamma spectrometric measurements of uranium isotope ratios

H. Ramebäck, A. Vesterlund, A. Tovedal, U. Nygren, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2535-2538

The jackknife as an approach for uncertainty estimation in gamma spectrometric uranium isotope ratio measurements was evaluated. Five different materials ranging from depleted uranium (DU) to high enriched uranium (HEU) were measured using gamma spectrometry. High resolution inductively coupled plasma mass spectrometry (ICP-SFMS) was used as a reference method for comparing the results obtained with...

article

Thermal neutron cross-section libraries for aromatic hydrocarbons

F. Cantargi, J.R. Granada

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2487-2491

Solid phases of aromatic hydrocarbons, such as benzene, toluene, mesitylene and a 3:2 mixture by volume of mesitylene and toluene, were studied as potential moderator materials for a cold neutron source. Existing information on the (lattice) translational and rotational modes of the different molecular species was used to produce generalized frequency spectra; the latter included the internal vibrational...

article

The annealing behavior of Cu nanoparticles in Ar-ion implanted spinel

Yitao Yang, Chonghong Zhang, Bingsheng Li, Liqing Zhang, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2492-2495

Magnesium aluminate spinel crystals (MgAl ₂ O ₄ (110)) deposited with 30nm Cu film on surface were implanted with 110keV Ar-ions to a fluence of 1.0×10 ¹⁷ ions/cm ² at 350°C, and then annealed in vacuum condition at the temperature of 500, 600, 700, 800 and 900°C for 1h, respectively. Ultraviolet–visible spectrometry (UV–VIS), scanning electron microscopy (SEM), Rutherford...

article

Analysis of the FIC detector data at the n_TOF facility

D. Karadimos, R. Vlastou, K. Ioannides, P. Assimakopoulos, more

Nuclear Inst. and Methods in Physics Research, B > 2010 > 268 > 16 > 2556-2562

Fission cross-section measurements with the Fast Ionization Chamber (FIC) at the CERN n_TOF facility were challenged by intense signals due to γ-rays and ultra-relativistic particles from the impact of the 20GeV proton pulses on the neutron spallation target. A method for analyzing the data taken with Flash Analog to Digital Converters (FADC) was developed to treat these problems in an automated way...

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Number:
16
Volume:
268
Year:
2010

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Keywords

MONTE CARLO SIMULATION (3)
193IR (1)
BAND GAP (1)
CARBON BLACK (1)
CARBON MONOXIDE DETECTION AND REMOVAL (1)
COLD NEUTRON SOURCES (1)
COMPOSITE (1)
CRYOGENIC MODERATOR MATERIALS (1)
CRYSTAL (1)
CT DOSIMETRY (1)
CU NANOPARTICLES (1)
DEFECT (1)
DEFECTS (1)
DIGITAL SIGNAL PROCESSING (1)
DOSAGE (1)
DUAL ION BEAM (1)
ELECTRON IMPACT (1)
ENRICHMENT (1)
FACE-CENTER-CUBIC SOLID-SOLUTION (1)
FERROELECTRIC (1)
FISSION IONIZATION CHAMBER (1)
GAMMA IRRADIATION (1)
GAMMA SPECTROMETRY (1)
HYPERFINE INTERACTIONS (1)
ION-BEAM SPUTTERING (1)
ISOTOPE RATIO (1)
K-ABSORPTION JUMP-RATIO (1)
K-FLUORESCENCE YIELD (1)
KΒ/KΑ RELATIVE X-RAY EMISSION RATE (1)
MASS ABSORPTION COEFFICIENT (1)
MICROSTRUCTURE OF PT–IR CATALYSTS (1)
MICROTRON (1)
MULTI-ELEMENT ALLOY (1)
MÖSSBAUER SPECTROSCOPY (1)
NANO-PARTICLES (1)
NANO-STRUCTURING (1)
NEUTRON DIFFRACTION (1)
NEUTRON INDUCED FISSION (1)
NEUTRON SCATTERING (1)
NEUTRON TIME OF FLIGHT (1)
N TOF (1)
OXIDE SEMICONDUCTOR (1)
PATTERN FORMATION (1)
PHANTOMS (1)
PROTON IRRADIATION (1)
PULSE SHAPE ANALYSIS (1)
RADIATION (1)
RADIO-FREQUENCY MAGNETRON SPUTTERING (1)
RECYCLE RUBBER POWDER (1)
SCHRÖDINGER EQUATION FOR NEUTRON (1)
STANDING LASER WAVE (1)
SURFACE PLASMON RESONANCE ABSORBANCE (1)
THERMAL CROSS-SECTION LIBRARIES (1)
THIN FILM TRANSISTOR (1)
TISSUE-EQUIVALENT MATERIALS (1)
UNCERTAINTY (1)
URANIUM (1)
UV–VISIBLE (1)
WASTE POLYAMIDE COPOLYMERS (1)
X-RAY PRODUCTION CROSS SECTION (1)
ZINC OXIDE (1)
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

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