Due to the need for harmonization of passive dosimetry and requirements international standards in area environmental monitoring radiation protection, multiple types various systems based on different ionizing detection mechanisms were subjected extensive performance testing. In scope EMPIR project 16ENV04 Preparedness, 12 was examined fields photon energies, angles incidence ambient dose equiv...

A long with optical telecommunications systems (see box) (1-3), "integrated optics" (4) and "optical interconnect" (5) technologies are becoming more advanced. The major components of these technologies are photonic integrated circuits (PICs), optoelectronic integrated circuits (OEICs), and optoelectronic multichip modules (OE-MCMs). All the functional devices within these components, including...

Methods Ten craniectomized pigs where sonicated with an ExAblate4000 Neuro (InSightec, Haifa, Israel) operated with a 220Hz array made of 1024 transducers. For each animal, a thermal lesion was aimed on the right thalamus, while a cavitation (mechanical) lesion was aimed on the contralateral side. For thermal lesioning, 40s duration sonications were performed and the acoustical energy ranged be...

background: radon is an odourless, colourless and tasteless gas and it is the first cause of lung cancer among non- smokers. the assessment of the level of radium in building materials helps in understanding the radiological implications. it has been observed that everyone has some levels of exposure to them. therefore measurement of radium and radon in the soil samples are important from publi...

background: due to volatility of radioactive iodine solutions, usually internal exposure would occur in personnel that are working in nuclear medicine centers. the activities in the thyroid of individual s who work in nuclear medicine centers of north west provinces of iran were measured using nai (sodium iodide) detectors. in every center, nearly 40 - 500 mci of 131 i and 50 - 600 μ ci of 125 ...

Background: Inhalation of radon and its short-lived decay products is one of the ‎most significant sources of exposure to natural radiation. Radon is the second cause ‎of lung cancer in the populations. The present study was carried out under the projects of ‎national radon, with the aim of determining the concentration of indoor in the city of Qom ‎located in the central se...

High-purity germanium (HPGe) is a vibration-sensitive, high-resolution detector. It has been found that microphonic noise induced by vibration and electromagnetic interference from EMC causes energy resolution degradation in HPGe detectors. In this paper, to enhance the of pulse tube-cooled high purity detector, passive isolation system for portable tube cooler (PTC) was employed investigated. ...

The availability of accurate estimates the delay or time arrival incoming signals is paramount importance for position estimation in passive radars with multiple receivers. This correspondence aims at improving delays by detectors exploiting cross-correlation between (say cross-cross-correlation) received signals. resulting equation system formulated as a least squares minimization problem, who...