摘要We report the chemical etching behaviour of the CR-39 polymer detector exposed to fission fragments of 252Cf describing etchability of latent tracks, which are like nanocylinders. The fission fragment exposed detectors were etched in 1--7N NaOH water solutions at temperatures 50--80°C for 45min in the case of track length and 180min in the case of track diameter measurements. The reduced etch rate S (called here etchability) is determined using experimental results for all etching conditions and the etching conditions with the highest reduced etch are obtained. Physics and energetics of bulk and track etching are discussed. Possible effects causing spurious changes in determination of activation energy of etching are investigated.
Abstract：We report the chemical etching behaviour of the CR-39 polymer detector exposed to fission fragments of 252Cf describing etchability of latent tracks, which are like nanocylinders. The fission fragment exposed detectors were etched in 1--7N NaOH water solutions at temperatures 50--80°C for 45min in the case of track length and 180min in the case of track diameter measurements. The reduced etch rate S (called here etchability) is determined using experimental results for all etching conditions and the etching conditions with the highest reduced etch are obtained. Physics and energetics of bulk and track etching are discussed. Possible effects causing spurious changes in determination of activation energy of etching are investigated.
(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))
Mukhtar Ahmed Rana. Etchability of Latent Fission Fragment Tracks in CR-39[J]. 中国物理快报, 2007, 24(11): 3107-3110.
Mukhtar Ahmed Rana. Etchability of Latent Fission Fragment Tracks in CR-39. Chin. Phys. Lett., 2007, 24(11): 3107-3110.
[1] Fleischer R L, Price P B and Walker R M 1975 Nuclear Tracks inSolids: Principles and Applications (Berkeley: University ofCalifornia Press) [2] Durrani S A and Bull R K 1987 Solid State Nuclear TrackDetection: Principles, Methods, and Applications (New York: Pergamon) [3] Nikezic D and Yu K N 2004 Mater. Sci. Eng. R: Reports 46 51 [4] Rana M A 2006 Chin. Phys. Lett. 23 1448 [5] Moharram B M, Lamaze G, Elfiki M and Khalil N 2002 Radiat. Meas. 35 113 [6] Rana M A 2007 Radiat. Meas. 42 317 [7] Rana M A, Osipowicz T, Choi H W, Breese M B H and Chua S J 2003 Chem. Phys. Lett. 380 105 [8] Abu Saleh S and Eyal Y 2004 Appl. Phys. Lett. 85 2529 [9]Rana M A and Qureshi I E 2002 Nucl. Instrum. Methods B 198129 [10] Palfalvi J and Sajo-Bohus L 1997 Radiat. Meas. 28 483 [11] Cecchini S et al 2005 Radiat. Meas. 40 405
2007, Vol. 24 
