The anticipated use of more than 1000 lead fluoride ðPbF2Þ crystals as a fast and compact Cherenkov calorimeter material in a parity violation experiment at MAMI stimulated the investigation of the light yield (LY) of these crystals. The number of photoelectrons (p.e.) per MeV deposited energy has been determined with a hybrid photomultiplier tube (HPMT). In response to radioactive sources a LY...

X-ray fluorescence computed tomography (XFCT) based on sheet beam can save a huge amount of time to obtain a whole set of projections using synchrotron. However, it is clearly unpractical for most biomedical research laboratories. In this paper, polychromatic X-ray fluorescence computed tomography with sheet-beam geometry is tested by Monte Carlo simulation. First, two phantoms (A and B) filled...

Infrastructure as a Service (IaaS) is one of the provisioning models for Clouds as defined in the NIST Clouds definition. Although widely used, current IaaS implementations and solutions doesn’t have common and well defined architecture model. The paper attempts to define a generic architecture for IaaS based on current research by authors in developing novel architectural framework for Infrast...

Scintillation properties of pure CsI crystals used in the shower calorimeter being built for precise determination of the π→πeνe decay rate are reported. Seventyfour individual crystals, polished and wrapped in Teflon foil, were examined in a multiwire drift chamber system specially designed for transmission cosmic muon tomography. Critical elements of the apparatus and reconstruction algorithm...

The inelastic muon-nucleus interaction was studied at accelerators, in the range of large Q transfer (Q ≥ 1GeV ) mainly to measure the nucleon structure functions (deep inelastic scattering experiments). However, the bulk of interactions are characterized by low Q (Q ≤ 0.1GeV ) and can be described with the exchange of a quasi-real photon between the muon and the nucleon and they are often refe...

The Cornell Electron Storage Ring (CESR) is a symmetric ee collider operating at the Υ(4S) resonance. The CLEO II and II.V detector configurations are described in detail elsewhere. The integrated luminosity of the full CLEO II+II.V data is 9.2 fb at the Υ(4S) resonance, which corresponds to about 9.7 × 10 BB̄ pairs, and 4.6 fb at energies just below the BB̄ threshold. The CLEO III data consists ...

Le respect de l’objectif « bien en dessous 2°C » dépend d’un accord mondial, dès la COP28, sur le financement des actions volontaires pays (cf. l’Accord Paris) dans un contexte d’incertitude reprise économique post-Covid-19. Macro-économiquement, ce ne peut être séparé réduction du déficit structurel d’inv...

The steeply falling end of the cosmic ray spectrum now extends up to ≈ 3 × 10 eV (see Ref. [1] for a recent survey), three orders of magnitude higher than the highest energy achieved by hadron colliders. Direct measurements using sophisticated equipment on satellites or high altitude balloons are limited in detector area and in exposure time. Ground-based detectors with large apertures make suc...

BTeV is a new Fermilab beauty and charm experiment designed to operate in the CZero region of the Tevatron collider. Critical to the success of BTeV is its pixel detector. The unique features of this pixel detector include its proximity to the beam, its operation with a beam crossing time of 132 ns, and the need for the detector information to be read out quickly enough to be used for the lowes...

The evaluation of PET data acquired during C therapeutic irradiations initiated a modification of the treatment planning data base improving the precision of the particle range in-vivo [1]. Thus, to an increasing extent delicate therapeutic situations characterized by high dose in close vicinity of organs at risk are treated. The validation of the correctness of such irradiations by means of PE...