Search results for: P. Rehak

Items from 1 to 20 out of 139 results

article

Triangular flow of negative pions emitted in PbAu collisions at sNN=17.3 GeV

D. Adamová, G. Agakichiev, A. Andronic, D. Antończyk, more

Nuclear Physics A > 2017 > 957 > C > 99-108

Differential triangular flow, v3(pT), of negative pions is measured at sNN=17.3 GeV around midrapidity by the CERES/NA45 experiment at CERN in central PbAu collisions in the range 0–30% with a mean centrality of 5.5%. This is the first measurement as a function of transverse momentum of the triangular flow at SPS energies. The pT range extends from about 0.05 GeV/c to more than 2 GeV/c. The triangular...

article

Ab initio tensile tests of grain boundaries in the fcc crystals of Ni and Co with segregated sp-impurities

M. Černý, P. Šesták, P. Řehák, M. Všianská, more

Materials Science and Engineering: A > 2016 > 669 > C > 218-225

Models of Σ5(210) grain boundaries in crystals of fcc Ni and fcc Co with segregated sp-impurities (Al, Si, P, S, Ga, Ge, As, Se, In, Sn, Sb, and Te) have been subjected to ab initio computational tensile tests. Two models of deformation (rigid grain shift and uniaxial loading) have been considered and their results have been compared. The results reveal striking differences in predictions from the...

article

Exponential estimates for solutions of half-linear differential equations

P. Řehák

Acta Mathematica Hungarica > 2015 > 147 > 1 > 158-171

This paper is concerned with estimates, unimprovable in a certain sense, for positive solutions to the half-linear differential equation ( $${|y^{\prime}|^{\alpha - 1} {\rm sgn} y^{\prime})^{\prime} = p(t) |y|^{\alpha - 1} {\rm sgn} y}$$ | y ′ | α - 1 sgn y ′ ) ′ = p ( t ) | y | α - 1 sgn y , where p is a continuous nonnegative function on $${[0, \infty)}$$ ...

article

eLine10k: A High Dynamic Range Front-End ASIC for LCLS Detectors

A. Dragone, P. Caragiulo, G. A. Carini, R. Herbst, more

IEEE Transactions on Nuclear Science > 2014 > 61 > 2 > 992 - 1000

eLine10k is a fast-frame, 64-channel readout ASIC for SLAC Linac Coherent Light Source (LCLS) detectors. The circuit has been designed to integrate the charge from high-capacitance 2D sensors with rolling shutter and 1D strip sensors. It is suitable for applications requiring large input signal range, on the order of $10^{4}$ photons/pixel/pulse at $8~\hbox{keV} (22~\hbox{Me}^{-})$ , and a resolution...

article

Polo‐like kinase 1 is essential for the first mitotic division in the mouse embryo

V. Baran, P. Solc, V. Kovarikova, P. Rehak, more

Molecular Reproduction and Development > 80 > 7 > 522 - 534

Polo‐like kinase 1 (PLK1), a member of the serine/threonine protein kinases family, is involved in multiple steps of mitotic progression. It regulates centrosome maturation, mitotic spindle formation, and cytokinesis. While studied extensively in somatic cells, little is known about PLK1 activities in the mammalian preimplantation embryo. We examined the role of PLK1 in the one‐cell mouse embryo....

article

Role of N-terminal pro B-type natriuretic peptide in identifying patients at high risk for adverse outcome after emergent non-cardiac surgery

S. Farzi, T. Stojakovic, Th. Marko, C. Sankin, more

British Journal of Anaesthesia > 2013 > 110 > 4 > 554-560

Patients undergoing emergency surgery continue to be at very high risk, but accurate risk identification for the individual patient remains difficult. This study tested the usefulness of perioperative N-terminal pro B-type natriuretic peptide (NT-proBNP) for in-hospital and long-term risk stratification. We conducted a prospective single-centre observational cohort study in an Austrian university...

article

Elliptic flow of charged pions, protons and strange particles emitted in Pb+Au collisions at top SPS energy

D. Adamová, G. Agakichiev, A. Andronic, D. Antończyk, more

Nuclear Physics, Section A > 2012 > 894 > Complete > 41-73

Differential elliptic flow spectra v2(pT) of π−, KS0, p, Λ have been measured at sNN=17.3 GeV around midrapidity by the CERN-CERES/NA45 experiment in mid-central Pb+Au collisions (10% of σgeo). The pT range extends from about 0.1 GeV/c (0.55 GeV/c for Λ) to more than 2 GeV/c. Protons below 0.4 GeV/c are directly identified by dE/dx. At higher pT, proton elliptic flow is derived as a constituent, besides...

chapter

eLine10k: A high dynamic range front-end ASIC for LCLS detectors

A. Dragone, P. Caragiulo, G. A. Carini, R. Herbst, more

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) > 898 - 905

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference (2012 NSS/MIC)

eLine10k is a fast-frame, 64-channel readout ASIC for SLAC Linac Coherent Light Source (LCLS) detectors. The circuit has been designed to integrate the charge from high-capacitance 2D sensors with rolling shutter and 1D strip sensors. It is suitable for applications requiring large input signal range, on the order of 10⁴ photons/pixel/pulse at 8keV (22Me⁻), and a resolution of half a photon FWHM (500e...

article

The effect of herbicide BASTA 15 on the development of mouse preimplantation embryos in vivo and in vitro

D. Fabian, J. Bystriansky, J. Burkuš, P. Rehák, more

Toxicology in Vitro > 2011 > 25 > 1 > 73-79

The aim of this study was to evaluate the possible effect of maternal poisoning by BASTA-15 on developmental capacities and quality of preimplantation embryos in a mouse model. During in vivo tests, fertilized mice were fed with various doses of BASTA-15 for several days. During in vitro tests, isolated embryos were cultured in a medium with the addition of herbicide or its main compound glufosinate...

article

Nonoscillation of half-linear dynamic equations

S. Matucci, P. Řehák

Computers and Mathematics with Applications > 2010 > 60 > 5 > 1421-1429

The half-linear dynamic equation on time scales (r(t)|yΔ|α−1sgnyΔ)Δ+p(t)|yσ|α−1sgnyσ=0,α>1, is here considered, under the condition ∫∞r1/(1−α)(s)Δs<∞. Two new characterizations of nonoscillation to this equation are provided, namely in terms of solvability to a related weighted integral Riccati type inequality and in terms of the convergence of a certain function sequence involving the coefficients...

article

The CERES Collaboration

D. Adamová, G. Agakichiev, A. Andronic, D. Antończyk, more

Nuclear Physics, Section A > 2009 > 830 > 1-4 > 945c

chapter

The XAMPS detector for the X-ray Pump-Probe instrument at LCLS

G.A. Carini, A. Dragone, Wei Chen, J. Fried, more

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) > 2151 - 2153

2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009)

An integrating fast readout detector is being developed for the X-ray Pump Probe (XPP) instrument at the Linac Coherent Light Source (LCLS). The detector is based on X-ray Active Matrix Pixel Sensors (XAMPS) with their dedicated readout ASICs. It covers a dynamic range of more than 10,000 photons of 8 keV energy with a resolution better than half photon FWHM. The frame of 1024 ?? 1024 pixels will...

chapter

Comparison of two different methods to produce thin-window silicon drift detectors

P. Rehak, Wei Chen, G.A. Carini, Hui-Fang Chuang, more

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) > 1777 - 1782

2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009)

We have developed a new method to produce thin-entrance-window Silicon Drift Detectors. To produce the desired thin-entrance-window a double implantation was used. This implantation consists of Boron ions (dose of 1??10¹⁴/cm² at 10 keV) plus a second implant of Phosphorus ions (with a dose of 4??1012/cm² at 50 keV or dose of 9??1011/cm² at 80 keV) through 500 ?? of silicon dioxide. The second Phosphorus...

chapter

ASIC for SDD-based X-ray spectrometers

P. Rehak, G. De Geronimo, K. Ackley, G. Carini, more

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) > 1088 - 1095

2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009)

We present an application-specific integrated circuit (ASIC) for high-resolution x-ray spectrometers (XRS). The ASIC reads out signals from pixelated silicon drift detectors (SDDs). The pixel does not have an integrated field effect transistor (FET); rather, readout is accomplished by wire-bonding the anodes to the inputs of the ASIC. The ASIC dissipates 32 mW, and offers 16 channels of low-noise...

chapter

In memoriam

P. Rehak

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) > 1 - 3

2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009)

Pavel Rehak (December 5,1945 - November 4,2009 ) obtained his first doctoral degree at the University of Prague in 1969 and shortly thereafter, from 1969 until 1972 he obtained his second doctoral degree . In 1973, he work at CERN ISR (Intersecting Storage Ring ) as a research associate in the Physics Department of Yale University. Since 1982, his main interest has been focused on semiconductor detectors...

article

Modification of jet-like correlations in Pb–Au collisions at 158A GeV/c

D. Adamová, G. Agakichiev, D. Antończyk, H. Appelshäuser, more

Physics Letters B > 2009 > 678 > 3 > 259-263

Results of a two-particle correlation analysis of high-pt charged particles in Pb–Au collisions at 158A GeV/c are presented. The data have been recorded by the CERES experiment at the CERN-SPS. The correlations are studied as function of transverse momentum, particle charge and collision centrality. We observe a jet-like structure in the vicinity of a high-pt trigger particle and a broad back-to-back...

article

141 STAGE MIGRATION OF RENAL CELL CARCINOMA IN A EUROPEAN SINGLE CENTRE OVER 23 YEARS: IMPACT ON SURVIVAL

T. Chromecki, G.C. Hutterer, A. Imamovic, K. Kampel-Kettner, more

European Urology Supplements > 2009 > 8 > 4 > 156

article

135 THE ‘LEIBOVICH’ - MAYO CLINIC SCORING ALGORITHM FOR CLEAR CELL RENAL CELL CARCINOMA SUPPLEMENTED BY VASCULAR INVASION

T. Chromecki, G.C. Hutterer, A. Imamovic, K. Kampel-Kettner, more

European Urology Supplements > 2009 > 8 > 4 > 154

article

Performance of a Thin-Window Silicon Drift Detector X-Ray Fluorescence Spectrometer

G.A. Carini, Wei Chen, G. De Geronimo, J.A. Gaskin, more

IEEE Transactions on Nuclear Science > 2009 > 56 > 5-2 > 2843 - 2849

Several sets of hexagonal Silicon Drift Detector (SDD) arrays were produced by Brookhaven National Laboratory (BNL) and by the commercial vendor, KETEK. These detector arrays were tested at BNL. Each array consists of 14 independent SDD detectors (pixels) and two additional test pixels located at two corners of the array. The side of the detector upon which the X-ray radiation is incident (window...

chapter

Performance of thin-window Silicon Drift Detectors

G. A. Carini, W. Chen, G. De Geronimo, J. Fried, more

2008 IEEE Nuclear Science Symposium Conference Record > 1944 - 1950

2008 IEEE Nuclear Science Symposium and Medical Imaging conference (2008 NSS/MIC)

Several sets of hexagonal Silicon Drift Detector (SDD) arrays were produced at BNL and by a commercial vendor, KETEK. Each array consists of 14 independent detectors (pixels) and two additional test pixels at two of the corners. The side of the detector upon which the X-ray radiation is incident (window side) has a thin junction covering the entire active area. The opposite side (device side) contains...

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DETECTORS (7)
APPLICATION SPECIFIC INTEGRATED CIRCUITS (6)
SILICON RADIATION DETECTORS (6)
SILICON (5)
PIXEL (4)
POSITION SENSITIVE PARTICLE DETECTORS (4)
READOUT ELECTRONICS (4)
SEMICONDUCTOR COUNTERS (4)
X-RAY SPECTROMETERS (4)
ALUMINUM (3)
ANNEALING (3)
ANODES (3)
BASELINE STABILIZATION (3)
DATA MINING (3)
GAS ELECTRON MULTIPLIERS (3)
LOW-NOISE CHARGE AMPLIFICATION (3)
SILICON DRIFT DETECTOR (3)
X-RAY DETECTION (3)
X-RAY IMAGING (3)
ANALOG MEMORY (2)
ANODE CAPACITANCE (2)
ASIC (2)
BACK-SPUTTERING (2)
BORON (2)
BROOKHAVEN NATIONAL LABORATORY (2)
CHARGE PUMPS (2)
CRYOGENIC TEMPERATURES (2)
DIFFUSION (2)
DYNAMIC RANGE (2)
ELECTRON BUBBLE (2)
ELECTRON MICROSCOPY (2)
ELECTRON MULTIPLIER DETECTORS (2)
ELEMENTAL SEMICONDUCTORS (2)
ENERGY-RESOLVED X-RAY IMAGING (2)
HALF-LINEAR DIFFERENTIAL EQUATION (2)
HELIUM (2)
IMPLANTED SILICON SUBSTRATE (2)
INTEGRATED FIELD EFFECT TRANSISTOR (2)
ION IMPLANTATION (2)
JUNCTION GATE FIELD EFFECT TRANSISTORS (2)
LASER ANNEALING (2)
LASER BEAM ANNEALING (2)
LCLS (2)
LINAC COHERENT LIGHT SOURCE (2)
NEON (2)
NOISE (2)
PEAK DETECTION (2)
PENNING MIXTURES (2)
PIXELATED SILICON DRIFT DETECTOR (2)
PREAMPLIFIERS (2)
READ OUT SIGNALS (2)
SDD (2)
SI (2)
SILICON COMPOUNDS (2)
SOFT X-RAY RADIATION HARDNESS (2)
SPUTTERING (2)
THIN OXIDE LAYER (2)
THIN-JUNCTION DETECTOR (2)
THIN-JUNCTION SENSOR (2)
TIME PROJECTION CHAMBERS (2)
TIME-RESOLVED X-RAY IMAGING (2)
VACUUM SYSTEM (2)
X-RAY ACTIVE MATRIX PIXEL SENSORS (2)
X-RAY APPARATUS (2)
X-RAY DETECTORS (2)
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APPLICATION-SPECIFIC INTEGRATED CIRCUIT (1)
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BASTA-15 (1)
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INFONA - science communication portal

Search results for: P. Rehak

Triangular flow of negative pions emitted in PbAu collisions at sNN=17.3 GeV

Ab initio tensile tests of grain boundaries in the fcc crystals of Ni and Co with segregated sp-impurities

Exponential estimates for solutions of half-linear differential equations

eLine10k: A High Dynamic Range Front-End ASIC for LCLS Detectors

Polo‐like kinase 1 is essential for the first mitotic division in the mouse embryo

Role of N-terminal pro B-type natriuretic peptide in identifying patients at high risk for adverse outcome after emergent non-cardiac surgery

Elliptic flow of charged pions, protons and strange particles emitted in Pb+Au collisions at top SPS energy

eLine10k: A high dynamic range front-end ASIC for LCLS detectors

The effect of herbicide BASTA 15 on the development of mouse preimplantation embryos in vivo and in vitro

Nonoscillation of half-linear dynamic equations

The CERES Collaboration

The XAMPS detector for the X-ray Pump-Probe instrument at LCLS

Comparison of two different methods to produce thin-window silicon drift detectors

ASIC for SDD-based X-ray spectrometers

In memoriam

Modification of jet-like correlations in Pb–Au collisions at 158A GeV/c

141 STAGE MIGRATION OF RENAL CELL CARCINOMA IN A EUROPEAN SINGLE CENTRE OVER 23 YEARS: IMPACT ON SURVIVAL

135 THE ‘LEIBOVICH’ - MAYO CLINIC SCORING ALGORITHM FOR CLEAR CELL RENAL CELL CARCINOMA SUPPLEMENTED BY VASCULAR INVASION

Performance of a Thin-Window Silicon Drift Detector X-Ray Fluorescence Spectrometer

Performance of thin-window Silicon Drift Detectors

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