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Università degli Studi di Firenze (University of Florence)
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Papers by dante bollini
Zeitschrift für Physik C Particles and Fields, 1994
World Scientific Series in 20th Century Physics, 1995
Nuclear Instruments and Methods, 1972
ABSTRACT
Lettere Al Nuovo Cimento Series 2, 1975
Il Nuovo Cimento A, 1981
ABSTRACT
Nuclear Instruments and Methods, 1970
ABSTRACT
Physics Letters B, 1973
ABSTRACT Further proof is given for the inadequacy of the peaking approximation in first-order ra... more ABSTRACT Further proof is given for the inadequacy of the peaking approximation in first-order radiative corrections, via the observation of 429 non-coplanar (e+e-) events. The energy dependence of this effects is measured in the s-range 1.44 to 9.0 GeV2, and represents another proof of the validity of QED.
Physics Letters B, 1973
The study of 620 hadron pairs produced in the s-range (1.44-9.0) GeV 2 , has yielded 110 colhnear... more The study of 620 hadron pairs produced in the s-range (1.44-9.0) GeV 2 , has yielded 110 colhnear hadromc events. Thetr identification in terms of ~r and K mesons allows the determination of the time-like electromagnetic from factors of these pseudosealar mesons in the above time-like range. The total number of (e+e-) events observed in the same experimental conditions is 18 048.
Physics Letters …, 1990
Institut National de Physique Nucléaire et de Physique des Particules.
Zeitschrift für Physik C Particles and Fields, 1985
An angiographic practice an iodate contrast medium is injected in patient vessels with catheters.... more An angiographic practice an iodate contrast medium is injected in patient vessels with catheters. The absorption of X-rays rises immediately above the Iodine K-edge energy (33.17 keV), permitting to distinguish human soft tissues characterized by similar absorption's coefficients. Conventional image subtraction technique uses two images, acquired before and after the injection of the contrast medium, respectively. The vessels' morphology results from the difference of images so obtained. A different approach is presented: two quasimonochromatic peaks, having mean energies lower and higher than the Iodine K-edge, are produced with a pyrolytic graphite crystal monochromator and split in two thin parallel beams, respectively. These two beams impinge on phantoms simulating patient vessels and are detected with solid-state array detectors. The image results as the difference between the intensities of the two beams emerging from patient tissues and Iodine. In this work, we show r...
2014 Nous décrivons un détecteur de neutrons de grand volume sensible (2 x 0,39 m3 de scintillate... more 2014 Nous décrivons un détecteur de neutrons de grand volume sensible (2 x 0,39 m3 de scintillateur plastique) capable de mesurer avec précision les coordonnées du point d'interaction du neutron détecté ainsi que son temp-de-vol. employé comme spectromètre de masses manquantes, il permet d'observer par exemple le méson ~ avec une résolution de + 4,2 MeV. Abstract.-A large (2 x 0.39 m3 plastic scintillator) neutron detector capable to measure with high accuracy the coordinates of the neutron interaction point as well as its time-of-flight is described. As a missing mass spectrometer, it allows to observe for example the ~ meson with a mass resolution of + 4.2 MeV.
Physics Letters B, 1989
We present results on a high statistics study of the proton structure functions F 2 (x, Q 2 ) and... more We present results on a high statistics study of the proton structure functions F 2 (x, Q 2 ) and R=σ L /σ T measured in deep inelastic scattering of muons on a hydrogen target. The analysis is based on 1.8 × 10 6 events after all cuts, recorded at beam energies of 100, 120, 200 ...
Zeitschrift für Physik C Particles and Fields, 1994
World Scientific Series in 20th Century Physics, 1995
Nuclear Instruments and Methods, 1972
ABSTRACT
Lettere Al Nuovo Cimento Series 2, 1975
Il Nuovo Cimento A, 1981
ABSTRACT
Nuclear Instruments and Methods, 1970
ABSTRACT
Physics Letters B, 1973
ABSTRACT Further proof is given for the inadequacy of the peaking approximation in first-order ra... more ABSTRACT Further proof is given for the inadequacy of the peaking approximation in first-order radiative corrections, via the observation of 429 non-coplanar (e+e-) events. The energy dependence of this effects is measured in the s-range 1.44 to 9.0 GeV2, and represents another proof of the validity of QED.
Physics Letters B, 1973
The study of 620 hadron pairs produced in the s-range (1.44-9.0) GeV 2 , has yielded 110 colhnear... more The study of 620 hadron pairs produced in the s-range (1.44-9.0) GeV 2 , has yielded 110 colhnear hadromc events. Thetr identification in terms of ~r and K mesons allows the determination of the time-like electromagnetic from factors of these pseudosealar mesons in the above time-like range. The total number of (e+e-) events observed in the same experimental conditions is 18 048.
Physics Letters …, 1990
Institut National de Physique Nucléaire et de Physique des Particules.
Zeitschrift für Physik C Particles and Fields, 1985
An angiographic practice an iodate contrast medium is injected in patient vessels with catheters.... more An angiographic practice an iodate contrast medium is injected in patient vessels with catheters. The absorption of X-rays rises immediately above the Iodine K-edge energy (33.17 keV), permitting to distinguish human soft tissues characterized by similar absorption's coefficients. Conventional image subtraction technique uses two images, acquired before and after the injection of the contrast medium, respectively. The vessels' morphology results from the difference of images so obtained. A different approach is presented: two quasimonochromatic peaks, having mean energies lower and higher than the Iodine K-edge, are produced with a pyrolytic graphite crystal monochromator and split in two thin parallel beams, respectively. These two beams impinge on phantoms simulating patient vessels and are detected with solid-state array detectors. The image results as the difference between the intensities of the two beams emerging from patient tissues and Iodine. In this work, we show r...
2014 Nous décrivons un détecteur de neutrons de grand volume sensible (2 x 0,39 m3 de scintillate... more 2014 Nous décrivons un détecteur de neutrons de grand volume sensible (2 x 0,39 m3 de scintillateur plastique) capable de mesurer avec précision les coordonnées du point d'interaction du neutron détecté ainsi que son temp-de-vol. employé comme spectromètre de masses manquantes, il permet d'observer par exemple le méson ~ avec une résolution de + 4,2 MeV. Abstract.-A large (2 x 0.39 m3 plastic scintillator) neutron detector capable to measure with high accuracy the coordinates of the neutron interaction point as well as its time-of-flight is described. As a missing mass spectrometer, it allows to observe for example the ~ meson with a mass resolution of + 4.2 MeV.
Physics Letters B, 1989
We present results on a high statistics study of the proton structure functions F 2 (x, Q 2 ) and... more We present results on a high statistics study of the proton structure functions F 2 (x, Q 2 ) and R=σ L /σ T measured in deep inelastic scattering of muons on a hydrogen target. The analysis is based on 1.8 × 10 6 events after all cuts, recorded at beam energies of 100, 120, 200 ...