Background: Radon concentration was measured in the soil and indoor of Amman and Al- Rusaifa cities in Jordan during summer season. Materials and Methods: The measurement was performed using time-integrated passive radon dosimeters, containing a solid state nuclear track plastic detector, commercially known as CR-39. Results: Radon concentration levels in the soil ranged from 2.8 ± 1...

Background: Radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. It is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lu...

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...

Equations for calculating track parameters have been proposed, which invariably involve the track etch rate Vt and the bulk etch rate Vb. The present study measured Vb for the LR115 solid-state nuclear track detector using atomic force microscopy (AFM). The detectors were partially masked using rubber cement and then etched in 2:5 N NaOH solution at 60◦C for time periods ranging from 5 to 40 mi...

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...

Following almost ten years of incubation, solid state radiation detectors have, in recent years, achieved increasing emphasis and use in low energy nuclear physics.1-4 Such detectors depend on the production of free-charge carriers in crystals by the interaction of incident particles with bound electrons. Solid-state detectors are analogues of the well-known gaseous ionization chamber. In an io...

A review is accomplished on the Softcomputing approaches in the field of nuclear track measurements for polymer solid state nuclear track detectors which have been commonly used for passive dosimetry applications. Several works presented in the last two decades were addressed. A general scheme of a Softcomputing method for nuclear track measurement is expressed from a global viewpoint.