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Low level fast neutron dosimetry using CR-39 plastic sheets
- Source :
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 23:369-373
- Publication Year :
- 1987
- Publisher :
- Elsevier BV, 1987.
-
Abstract
- Dosimetric measurements of fast neutrons at a level lower than 10 mrem from an Am-Be source have been made by using CR-39 plastic sheets. After being etched in 6.8N NaOH for 18 to 20 h, the CR-39 sheets were scanned under an optical microscope and counted, with the requirement that etch pits have sharp tips. The background pits due to alpha-particles at the surface of sheets are eliminated by this criterion. The density of etch pits as a function of rem-dose shows excellent linearity over the range of 1 to 10 mrem. The sensitivity is 13.4 etch pits/cm mrem.
Details
- ISSN :
- 0168583X
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
- Accession number :
- edsair.doi...........512c9ce604026295b42ba48c8e02a4f2
- Full Text :
- https://doi.org/10.1016/0168-583x(87)90393-4