Fast detection of alpha particles in DAM-ADC nuclear track detectors

作者：Rammah Y S^*; Ashraf O; Abdalla A M; Eisa M; Ashry A H; Tsuruta T

来源：Radiation Physics and Chemistry, 2015, 107: 183-188.

DOI：10.1016/j.radphyschem.2014.10.013

• Fission fragments
• Alpha particles
• DAM-ADC
• Etching efficiency

Fast detection of alpha particles in DAM-ADC nuclear track detectors using a new chemical etchant was investigated. Cf-252 and Am-241 sources were used for irradiating samples of DAM-ADC SSNTDs with fission fragments and alpha particles in air at normal temperature and pressure. A series of experimental chemical etching are carried out using new etching solution (8 ml of 10 N NaOH+ 1 ml CH3OH) at 60 degrees C to detect alpha particle in short time in DAM-ADC detectors. Suitable analyzing software has been used to analyze experimental data. From fission and alpha track diameters, the value of bulk etching rate is equal to 8.52 mu m/h. Both of the sensitivity and etching efficiency were found to vary with the amount of methanol in the etching solution and etching time. The DAM-ADC detectors represent the best efficiency applicable in detectors in the entire range of alpha energies (from 1 to 5 MeV). The activation energies of this etchant have been calculated; track activation energy, E-T, has been found to be lower than the bulk activation energy, E-B, for the DAM-ADC nuclear track detectors. These results are in more agreement with the previous work.

• 出版日期2015-2