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Gammage, R.B.; Cotter, S.J.
Oak Ridge National Lab., Tenn. (USA)1977
Oak Ridge National Lab., Tenn. (USA)1977
AbstractAbstract
[en] There is considerable optimism for the enhancement by electrochemical etching of fast neutron-induced recoil tracks in polycarbonate for the purpose of personnel dosimetry. The threshold energy, however, is rather high. A desirable improvement would be to lower this energy below 1 MeV. With this objective in mind, we have commenced an investigation of cellulose acetate, triacetate, and acetobutyrate in addition to polycarbonate. These cellulose derivatives are chemically more reactive and physically weaker than polycarbonate. It might, therefore, be possible to initiate the electrochemical amplification at the sites of shorter recoil atom damage tracks than is possible with polycarbonate. Some characteristics important for electrochemically etching in aqueous electrolytes are listed. Chemical etching is combined with treeing, an electrical breakdown process that starts when the dielectric strength is exceeded. These mechanical and electrical properties pertain to the dry plastics. The absorption of water molecules and electrolyte ions will cause these values to be reduced. Results and conclusions of the study are presented
Source
1977; 15 p; 6. workshop on personnel neutron dosimetry; Oak Ridge, TN, USA; 11 - 12 Jul 1977; Available from NTIS., PC A02/MF A01
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