Background: Hair dyes are the important materials widely used by various peoples in Iraq and other countries. The present work investigates the presence of the effective radium content and radon exhalation rate in hair dyes samples. Materials and Methods: Twenty  hair dyes  samples were collected from Iraqi markets. Sealed can technique using LR-115 type II plastic track detector s ha...

We give an overview of track fitting using the Kalman filter method in the NOMAD detector at CERN, and emphasize how the wealth of by-product information can be used to analyze track breakpoints (discontinuities in track parameters caused by scattering, decay, etc.). After reviewing how this information has been previously exploited by others, we describe extensions which add power to breakpoin...

The solid-state nuclear track detector CR-39 is widely used as a detecting mechanism in physics experiments as well as for industrial purposes such as neutron dosimetry and radon detection. The upper limit of detectable charged-particle fluence on CR-39 is set by physical overlapping or ‘pulse pileup’ of particle tracks on the surface. In the low-overlap regime the overlapping fraction of track...

Following the CMS Cathode Strip Chamber Beam Test of Summer 2004, experimental validation of the performance of CMS Track-Finder Trigger is necessary. This study focuses on the analysis of the beam profile, φ distribution fits, the beam scattering due to iron blocks in the muon beam path, and the comparison of the Track-Finder Trigger hardware output to a software simulation. Employing statisti...

Solid State Nuclear Track Detectors (SSNTD) are commonly used for long term measurements of radon, thoron and progeny concentrations. In the present study, we compared the optical counting method and the spark counting technique for counting the alpha tracks on LR 115 track detector films. The paper discusses the various parameters that are innate in the process. More than 300 films were counte...

This note is devoted to the new track reconstruction package OTR/ITR-CATS developed for the Pattern Tracker of the HERA-B experiment. This package employs a combined approach for track reconstruction based on the use of a cellular automaton for track searching and the Kalman filter techniques for track fitting. A similar reconstruction strategy has been already successfully applied to the Verte...

MACRO experiment operated in the Gran Sasso underground laboratory. Neutrino events collected by this detector are used in order to study the atmospheric neutrino flux. Different measurements in different energy samples are in full agreement and show evidence of neutrino oscillation phenomenon with maximal mixing and ∆m 2 ∼ 0.0025 eV 2. Also the search for neutrino astrophysical sources is repo...

This paper addresses the issue of face and lip tracking via chromatic detector, CCL algorithm and canny edge detector. It aims to track face and lip region from static color images including frames read from videos, which is expected to be an important part of the robust and reliable person identification in the field of computer forensics. We use the M2VTS face database and pictures took from ...

An X-ray photon detector based on the highly granular readout of an InGrid is described. This gaseous detector, based on a highly pixelized readout chip with an integrated Micromegas grid, allows for a topological analysis of each event and, thus, a distinction between a charged track and a photon conversion is possible in most cases. Because of the high granularity, an energy resolution of 5.2...

A reference tracking telescope consisting of three stations based on double-sided silicon microstrip detectors has been constructed and tested in a 2 GeV proton beam experiment at GSI. This proof-of-principle device designed for charged particle track measurement with high spatial resolution closely integrates silicon sensors with self-triggering front-end electronics. Each station features the...