L. Quintieri
A5084794604- Pulsars and Gravitational Waves Research
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Radiation Therapy and Dosimetry
- Astrophysics and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Superconducting Materials and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Geophysics and Gravity Measurements
- Magnetic confinement fusion research
- Electron and X-Ray Spectroscopy Techniques
- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Gamma-ray bursts and supernovae
- Seismic Waves and Analysis
- Cosmology and Gravitation Theories
- Quantum, superfluid, helium dynamics
- Geophysics and Sensor Technology
- Advanced Chemical Physics Studies
- Radiopharmaceutical Chemistry and Applications
Rutherford Appleton Laboratory
2022-2024
Science and Technology Facilities Council
2022-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2006-2018
National Agency for New Technologies, Energy and Sustainable Economic Development
2013-2018
National Institute of Ionizing Radiation Metrology
2014-2018
Fusion Academy
2016
ENEA Casaccia Research Centre
2014-2015
Istituto Nazionale di Ricerca Metrologica
2014-2015
Istituto Nazionale di Fisica Nucleare
2002-2013
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2010-2012
The electron-positron collider DAPhiNE, the Italian Phi factory, has been recently upgraded in order to implement an innovative collision scheme based on large crossing angle, small beam sizes at point, and compensation of beam-beam interaction by means sextupole pairs creating a "crab-waist" configuration region. Experimental tests novel exhibited increase factor 3 peak luminosity with respect performances reached before upgrade. In this Letter we present new scheme, discuss its advantages,...
This paper presents the results of observations detectors participating in International Gravitational Event Collaboration (IGEC) from 1997 to 2000 and reviews data analysis methods. The is designed search for coincident excitations multiple detectors. set analyzed this article covers a longer period more complete than that given previous reports. current accurate determining false dismissal probability time coincidence it optimizes with respect target amplitude direction signal. statistics...
The network of resonant bar detectors gravitational waves resumed coordinated observations within the International Gravitational Event Collaboration (IGEC-2). Four are taking part in this Collaboration: ALLEGRO, AURIGA, EXPLORER and NAUTILUS. We present here results search for wave bursts over 6 months during 2005, when IGEC-2 was only observatory operation. implemented data analysis is based on a time coincidence among NAUTILUS; ALLEGRO reserved follow-up studies. amplitude sensitivity to...
Particle induced X-ray emission (PIXE) is an important physical effect that not yet adequately modelled in Geant4. This paper provides a critical analysis of the problem domain associated with PIXE simulation; it evaluates conceptual approach, design and implementations modelling so far available Geant4, describes set software developments to improve simulation The capabilities developed prototype are illustrated applied study passive shielding detectors German eROSITA telescope on upcoming...
Part of the upgrade KLOE detector at DAΦNE Φ-factory consists insertion a tracking device around interaction region, composed four layers with radii from 130 mm to 205 and an active length 700 mm. Each layer was realized as cylindrical triple-GEM (CGEM) kapton-based detector, solution that allows us keep total material budget below 2% X0, utmost importance limit multiple scattering low-momentum tracks KLOE-2, minimize dead spaces. The peculiar readout pattern XV strips provides spatial...
the gamma-emitting radionuclide Technetium-99m (99mTc) is still workhorse of Single Photon Emission Computed Tomography (SPECT) as it used worldwide for diagnosis a variety phatological conditions. 99mTc obtained from 99Mo/99mTc generators pertechnetate ion, which ubiquitous starting material preparation radiopharmaceuticals. 99Mo in such currently produced nuclear fission reactors by-product 235U fission. Here we investigated an alternative route production by irradiating natural metallic...
Resonant gravitational wave detectors with an observation bandwidth of tens hertz are a reality: the antenna Explorer, operated at CERN by ROG Collaboration, has been upgraded new readout. In this configuration, it exhibits unprecedented useful bandwidth: in over 55 Hz about its center operating frequency 919 spectral sensitivity is better than 10(-20) Hz(-1/2). We describe detector and discuss foreseeable upgrades to even larger bandwidths.
We report the result from a search for bursts of gravitational waves using data collected by cryogenic resonant detectors EXPLORER and NAUTILUS during year 2001, total measuring time 90 days. With these we repeated coincidence performed on 1998 (which showed small excess) applying analysis algorithms based known physical characteristics detectors. 2001 new interesting excess is found when are favorably oriented with respect to Galactic Disk.
A survey of atomic binding energies used by general purpose Monte Carlo systems is reported. Various compilations these parameters have been evaluated; their accuracy estimated with respect to experimental data. Their effects on physical quantities relevant particle transport are highlighted: X-ray fluorescence emission, electron and proton ionization cross sections, Doppler broadening in Compton scattering. The due different quantified Among the examined compilations, EADL found a less...
We have developped a procedure for the search of periodic signals in data gravitational wave detectors. report here analysis one year from resonant detector Explorer, searching pulsars located Galactic Center (GC). No with amplitude greater than $\bar{h}= 2.9~10^{-24}$, range 921.32-921.38 Hz, were observed using collected over time period 95.7 days, source at $\alpha=17.70 \pm 0.01$ hours and $\delta=-29.00 0.05$ degrees. Our can be extended any assumed position sky more general all-sky...
We report on the present scientific run (04–05) of two detectors EXPLORER and NAUTILUS. The 04–05 started in March 2004. strain sensitivity is about 7 × 10−22 Hz−1/2 bandwidth 5 Hertz. for 1 ms bursts h = 3 10−19.
The DAΦNE collider has been recently upgraded in order to implement a new collision scheme based on large Piwinski angle and cancellation of the synchro-betatron resonances by means electromagnetic sextupoles (Crab-Waist compensation). novel approach proved be effective improving beam-beam interaction luminosity. results measurements taken during commissioning as well perspectives for SIDDHARTA run are presented discussed.
Data obtained during five months of 2001 with the gravitational wave (GW) detectors EXPLORER and NAUTILUS, operating a bandwidth few Hz at frequencies near 900 Hz, were studied in correlation gamma ray burst data (GRB) BeppoSAX satellite. During this period was only GRB satellite operation, while NAUTILUS GW operation. No between bursts found. The analysis, performed over 47 GRB’s, excludes presence signals amplitude h>~6.5×10−19, 95% probability, if we allow time delay within ±5s,...
A set of physics models and parameters pertaining to the simulation proton energy deposition in matter are evaluated range up approximately 65 MeV, based on their implementations Geant4 toolkit.The analysis assesses several features impact associated epistemic uncertainties, i.e. uncertainties due lack knowledge, results.Possible systematic effects deriving from this kind highlighted; relevance relation application environment different experimental requirements discussed, with emphasis...