In this study, the bulk etch rate (VB) was measured by three different methods forCR-39 with a thickness of 200µm and an area (1 × 1 cm2), where CR_39 irradiated through from Am241source energy alpha particles is 2.6MeV at angle fall perpendicular to surface CR-39 detector, detector etching (NaOH) concentration 6.25N (70 ± 1°C) showing effects formed on time periods ranging (0.25h) were photogr...

The Silicon Tracking System (STS) serves the CBM experiment as a track reconstruction and momentum measurement detector. It is designed to provide high tracking efficiency and good momentum resolution for the charged particles produced in nuclear interactions in the target. As the multiplicities in central Au + Au collisions at FAIR energies reach 1000 charged particles a high granularity and l...

Although radon dose to lungs comes mainly from shortlived radon daughters, most of its estimations for general population is based on the measurements of radon gas concentration instead of radon progeny and acceptance of a constant equilibrium factor between radon and its short-lived decay products. It is so because integrating passive measurements of radon gas concentration are simpler and che...

Approximately 40,000 energetic charged particles were recorded in a pair of plastic detector chips suspended in the vapor over an active electrolysis cell. Particle track locations and orientations were revealed by examining the etch pits produced by chemical etching. Analysis of track orientations indicates that the shower originated in a compact source in the vapor between the chips. The tota...

Long-termmeasurements of radon progeny concentrations using Solid-State nuclear tract detector are being actively explored. These measurements depend critically on the thickness of the removed layer during etching. Scanning electron microscope (SEM) observations have identi;ed irregularities in etched LR 115 detectors, such as detachment of the active layer from the substrate and formation of a...