Equilibrium factor determination using SSNTDs

Radon Calibration System

“…In another method, a solid-state nuclear track detector was used to evaluate the equilibrium factor by the following equations [40,41]:…”

Retrospective radon progeny measurements through measurements of 210Po activities on glass objects using stacked LR 115 detectors

“…At the same time the stacked LR 115 detectors were mounted against the examined glass objects, the contemporary long-term radon progeny concentrations were also surveyed using the ''twins diffusion chamber" method [29,30] and the ''proxy-equilibrium factor" method [31][32][33]. The proxy equilibrium factor F p was proposed [31,32] for passive monitoring of the equilibrium factor F for short-lived 222 Rn progeny.…”

“…In addition, one bare mode LR 115 detector, also with a size of 3 Â 3 cm 2 , was attached on the outside of the top lid of the diffusion chambers to determine F p . More recently, potential factors affecting measurements of F using the F p method were studied in more detail [33]. The conclusions were (1) the removed active layer thickness of the LR 115 detector was a verycriticalparameterindeterminingF p and henceF;(2)thepresence of thoron in the ambient environment would affect the track densities on the bare LR 115 detector but could be corrected for using the partial sensitivities to thoron; and (3) deposition of dust particles on the bare LR 115 detectors normally would not have significant effects.…”

Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors

“…In the last few decades the solid-state nuclear track detectors (SSNTDs) have proven to be one of the most efficient, useable and recommended group of detectors available in marketing [1][2][3][4][5][6][7][8]. They acquire many advantages over the others, such as easily processional, low cost in manufcturing, excellent surface transeparency, high effeciency in ion-regestiration, etc.…”