Bulk and track etch properties of CR-39 SSNTD etched in NaOH/ethanol

被引：13

作者：

Chan, K. F. ^{[1
]}

Ng, F. M. F. ^{[1
]}

Nikezic, D. ^{[1
]}

Yu, K. N. ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon Tong, Hong Kong, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2007年 / 263卷 / 01期

关键词：

solid-state nuclear track detector; SSNTD; CR-39; etchant; ethanol;

D O I：

10.1016/j.nimb.2007.04.148

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Recently, Matiullah et at. described the use of NaOH/ethanol as an etchant for the CR-39 detector, and have determined the corresponding bulk and track etch properties from the track diameter method, In he present work, the bulk and track etch properties of CR-39 in NaOH/ethanol were derived from direct measurements. The bulk etch rate has been found to increase with the molarity of NaOH/ ethanol, reach a maximum at similar to 2.5 N and start to drop beyond 3 N. The bulk etch rate also increases with stirring. These phenomena can be explained by the insulation of the detector from the etchant by the etched products. Regarding the track etch, we have found a surprising result that the lengths of (pre-etched) tracks are actually shortened when the tracks are etched in NaOH/ethanol. Generally speaking, the remaining track depths obtained with stirring are longer than those for no stirring. The shortening of the tracks can be explained by the insulation of the pre-etched track wall from the etchant with the etched products. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：284 / 289

页数：6

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