Measurement of radioactivity in the environment. Air. Radon 220: Integrated measurement methods for the determination of the average activity concentration using passive solid-state nuclear track detectors

2016 ◽  
Keyword(s):  
Solid State ◽  
Activity Concentration ◽  
Measurement Methods ◽  
Nuclear Track Detectors ◽  
Average Activity

Use of solid state nuclear track detectors for determination of fissile radionuclides in hair of inhabitants of belarus

1995 ◽  
Vol 25 (1-4) ◽  
pp. 417-418
Author(s):  
A.F. Malenchenko ◽  
N.N. Bazanova ◽  
I.V. Zhuk ◽  
E.M. Lomonosova ◽  
M.K. Kievetz ◽  
...  
Keyword(s):  
Solid State ◽  
Nuclear Track Detectors

scholarly journals Retrospective radon measurements based on implanted 210Po in glass objects using polycarbonate detectors

2018 ◽  
Vol 33 (2) ◽  
pp. 167-173
Author(s):  
Alireza Azadbar ◽  
Dariush Sardari ◽  
Mohamadreza Kardan ◽  
Samaneh Baradaran
Keyword(s):  
Solid State ◽  
Radon Concentration ◽  
Activity Concentration ◽  
Diffusion Chamber ◽  
Average Value ◽  
Nuclear Track Detectors ◽  
210Po Activity ◽  
Cylindrical Diffusion ◽  
Radon Measurements ◽  
First Time

In the present investigation, a surface-deposited polonium was measured in 37 houses in Rasht and Ramsar cities of Iran with the aim of evaluating the retrospective radon concentration. The CR-LR technique is widely used in this regard, but for the first time, Lexan polycarbonate detectors were used to measure the activity of 210Po planted in glassy objects. These detectors were placed on glassy surfaces for 153 to 365 days. A passive cylindrical diffusion chamber was used for the contemporary radon concentration measurements. The diffusion chamber consists of the Lexan polycarbonate films as a solid state nuclear track detectors and filter. The surface-deposited 210Po activity concentration was found to vary from 0.26 to 11.96 mBqcm-2 with average of 2.62 mBqcm-2. The sensitivity of 210Po to polycarbonate was determined to be 0.06456 track per cm2 per mBqhcm-2. Thus, the radon concentration was found to vary from 122 to 4840 Bqm-3 with an average value 1243 Bqm-3 and the contemporary radon concentration in the area was found to vary from 15 to 2420 Bqm-3 with an average 513 Bqm-3. The results indicate that there is a significant correlation between the concentration of the retrospective radon and the concentration of the contemporary radon gas in the indicated areas with a coefficient of 0.80672.

Direct determination of bulk etching rate for LR-115-II solid state nuclear track detectors

Pramana ◽  
2006 ◽  
Vol 67 (3) ◽  
pp. 529-534 ◽  
Author(s):  
T A Salama ◽  
U Seddik ◽  
T M Hegazy ◽  
A Ahmed Morsy
Keyword(s):  
Solid State ◽  
Etching Rate ◽  
Direct Determination ◽  
Nuclear Track Detectors

scholarly journals Determination of radiation doses to the skin due to 238U and 232Th series for the therapeutic application in the Merzouga sand baths

2020 ◽  
Vol 26 (2) ◽  
pp. 87-96
Author(s):  
Rodouan Touti ◽  
Hicham Harrass
Keyword(s):  
Solid State ◽  
Alpha Particle ◽  
Residual Energy ◽  
Radiation Doses ◽  
Type Ii ◽  
Therapeutic Application ◽  
Nuclear Track Detectors ◽  
232Th Series ◽  
Cutaneous Application

AbstractIn this work, we used CR-39 and LR-115 type II solid-state nuclear track detectors to measure 238U, 232Th,222Rn and 220Rn concentrations in Merzouga sand. The measured concentrations of 238U and 232Th in the studied sand samples vary from (332.59±16.62) mBq·cm−3 to (335.54±20.13) mBq·cm−3 and (80.43±4.02) mBq·cm−3 to (84.75±5.08) mBq·cm−3, respectively. We evaluated the radiation doses to the skin from the application of different sand baths by the patients by using a model based on specific alpha-dose and alpha-particle residual energy concepts. The maximum total equivalent dose to the skin due to the 238U and 232Th series from the cutaneous application of different sand baths by patients was found equal to (148.12±11.85) µSv y−1cm−2

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