Study of the etching characteristics of -mixed NaOH solution |
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Authors: | EU Khan N Ali SN Husaini S Karim F Malik IE Qureshi JJ Baluch HA Khan |
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Institution: | aPhysics Research Division, PINSTECH, Nilore, Islamabad, Pakistan;bPhysics Department, COMSATS Institute of Information Technology, Islamabad, Pakistan;cPhysics Department, Gomal University, Dera Ismail Khan, Pakistan |
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Abstract: | In the present paper the effect of the presence of Na2CO3 on the etching characteristics of NaOH has been presented quantitatively. Six CR-39 detectors were etched at 50, 60 and in 6 M NaOH solutions containing 0%, 1%, 2%, 3%, 4% and 5% concentration of Na2CO3. Etching was performed in 22 steps of 5–10 min starting from 15 min up to 210 min. These detectors were previously exposed to 252Cf source. Lengths of 35 randomly selected fission fragment tracks were measured after each etching time interval. Similarly, diameters of 25 randomly selected fission fragments having 90 incidence angle were also measured as mentioned above. Track etch rate, bulk etch rate, etching efficiency and activation energies of both track as well as bulk etching have been determined. |
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Keywords: | Etching characteristics Na2CO3 NaOH CR-39 |
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