An analysis of materials used in the RPC detector and in the closed loop gas system of CMS at the LHC.

The results are reported of the study of materials used in the CERN Closed Loop recirculation gas system currently under test with the RPC muon detectors in the CMS experiment at the LHC. Studies include a sampling campaign in a low-radiation environment (cosmic rays at the CERN ISR test site). We describe the dedicated RPC chamber tests, the chemical analysis of the filters and gas used, and discuss the results of the Closed Loop system

Two- and Three-Dimensional Reconstruction and Analysis of the Straw Tubes Tomography in the Btev Experiment

A check of the eccentricity of the aluminised kapton straw tubes used in the BTeV experiment is accomplished using X-ray tomography of the section of tubes modules. 2 and 3-dimensional images of the single tubes and of the modules are reconstructed and analysed. Preliminary results show that a precision better than 40 $\mu$m can be reached on the measurement of the straw radii.Comment: Presented by F.Massa at ICATPP05, Villa Olmo (Como) Italy, November 2005. 4 pages, 8 figures, uses lnfprep.st

Gas analysis and monitoring systems for the RPC detector of CMS at LHC

1-9, arXiv:physics/0701014. Publisher: Los AlamosNational Laboratoty, CODEN: LNPHF9 available at http://arxiv.org/PS_cache/physics/pdf/0701/0701014v1.pd

Proposal for a systematic study of the CERN Closed Loop gas system used by the RPC muon detectors in CMS

http://www.lnf.infn.it/sis/preprint/pdf/getfile.php?filename=LNF-06-27(IR).pd

CMS physics technical design report : Addendum on high density QCD with heavy ions

Peer reviewe

A preliminary study on strain measurements with FBGs in zeolitized tufitic rocks

In this paper possible applications concerning displacement monitoring of tufitic slope of arailway road are considered. More specifically Fiber Bragg Grating sensors can be used in this type of applications. Deformations in this type of materials are caused by several factors besides mechanical stress i.e. humidity absorption and temperature variations. In order to verify these last two aspects specimens of the above mentioned materials have been prepared and subjected to temperature variations and to immersion in water containers. In the attempt to separate the two effects mesurements on bare sensor have been made in water which temperature was set to 40 . Bragg wavelength shifts have been recorded during the test and some preliminary correlation with the environmental conditions have been reported

Monitoring Temperature and Water Imbibition in Litic Materials by Embedded FBG

In this paper possible applications concerning monitoring of geomorphological evolution such as landslip and soil creep, water flow in soil, imbibition, drying, thermal expansion and contraction are considered. Monitoring of those processes is very useful for safety and efficiency, but it is usually very expensive both because of the instrumentation and the personnel required. In this paper we propose a new technique, based of fiber optic sensors, for monitoring deformations in rocks, in particular tufitic rocks. Fiber Bragg Grating (FBG) sensors can be used as optical strain gages to check in real time the deformation on the slope induced by temperature and water content variations. Furthermore it has been verified the measuring capability of the sensor with respect to temperature and imbibition in rocks and marbles for possible applications in cultural heritage where those materials were commonly used

Ipertensione portale distrettuale e carcinoma gastrico: case report

Ipertensione portale distrettuale e carcinoma gastrico: case repor