Critical etching parameters of mica, Lexan and cellulose acetate track detectors

In the present work, attempts have been made to investigate the modification in particle track etching response of polyallyl diglycol carbonate (PADC) due to impact of 2 MeV electrons. PADC samples pre-irradiated to 1, 10, 20, 40, 60, 80 and 100 Mrad doses of 2 MeV electrons were further exposed to 140 MeV ¾ Si beam and dose-dependent track registration properties of PADC have been studied. Etch-rate values of the PADC irradiated to 100 Mrad dose electron was found to increase by nearly 4 times that of pristine PADC. The electron irradiation has promoted chain scissioning in PADC, thereby converting the polymer into an easily etchable polymer. Moreover, the etching response and the detection efficiency were found to improve by electron irradiation. Scanning electron microscopy of etched samples further revealed the surface damage in these irradiated PADCs.

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Calibration of track detectors for fission rate determination: An experimental and theoretical study

Hashemi-Nezhad

Zhuk

Potapenko

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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Š ²¨¡·μ¢± É¢¥·¤μÉ¥²Ó´ÒÌ É·¥±μ¢ÒÌ ¤¥É¥±Éμ·μ¢ Ö¤¥· ¤²Ö μ ¶·¥¤¥²¥´¨Ö¸±μ·μ¸É¤ ¥²¥´¨Ö: Ô±¸ ¶¥·¨³¥´É ²Ó´μ¥¨É¥μ·¥É¨Î¥¸±μ¥¨ §ÊÎ¥´¨¥ "²Ö μ ¶·¥¤¥²¥´¨Ö¸±μ·μ¸É¨¤¥²¥´¨Ö ¢ ¤¥²ÖÐ¨Ì¸Ö ³ É¥·¨ ² Ì ¶·¨ ¶μ³μÐÉ ¢¥·¤μÉ¥²Ó´ÒÌ É·¥±μ¢ÒÌ ¤¥É¥±Éμ·μ¢ (¸²Õ¤ , ² ¢¸ ´¨¸É¥±²μ) Ô±¸ ¶¥·¨³¥´É ²Ó´μ °¤¥´¨· ¸¸Î¨É ´³¥Éμ¤μ³ OEμ´É¥-Š ·²μ ± ²¨¡·μ¢μÎ´Ò°Ë ±Éμ· w. μ± § ´μ, ÎÉμ ± ²¨¡·μ¢μÎ´Ò°Ë ±Éμ· w, μ ¶·¥¤¥²¥´´Ò°¢ ¶μ²ÖÌ´¥°É·μ´μ¢´¨ §±¨Ì Ô´¥·-£¨°, ³μ¦¥É¨¸ ¶μ²Ó §μ¢ ÉÓ¸Ö ¤²Ö´ Ìμ¦¤¥´¨Ö¸±μ·μ¸É¨¤¥²¥´¨Ö ¢´¥°É·μ´´ÒÌ ¶μ-²ÖÌ¸´¥¨ §¢¥¸É´Ò³¨Ì · ±É¥·¨¸É¨± ³¨(Ô´¥·£¨Ö¨Ê£²μ¢μ¥ · ¸ ¶·¥¤¥²¥´¨¥). Éμ ÊÉ¢¥·¦¤¥´¨¥¸ ¶· ¢¥¤²¨¢μ, ¥¸²¨¤²Ö ¢ÒÎ¨¸²¥´¨Ö ± ²¨¡·μ¢μÎ´μ£μ Ë ±Éμ· w ¶ μ¸²¥¤ÊÕÐ¥£μ ¥£μ ¶·¨³¥´¥´¨Ö¨¸ ¶μ²Ó §Ê¥É¸Ö¸·¥¤´¥¥ §´ Î¥´¨¥ ¶²μÉ´μ¸É¨É·¥-±μ¢ μ¸±μ²±μ¢ ¤¥²¥´¨Ö, ±μÉμ·μ¥ μ ¶·¥¤¥²Ö¥É¸Ö¸ ¶μ³μÐÓÕ É·¥±μ¢ÒÌ ¤¥É¥±Éμ·μ¢, · ¸ ¶μ²μ¦¥´´ÒÌ ¶μ μ¡¥¸Éμ·μ´Ò Ëμ²Ó£¨¨ § ¤¥²ÖÐ¥£μ¸Ö ¢¥Ð¥¸É¢ .¡μÉ ¢Ò ¶μ²´¥´ ¢ ‹ ¡μ· Éμ·¨¨¢Ò¸μ±¨Ì Ô´¥·£¨°¨³. ‚.ˆ. ‚¥±¸²¥· . OE. ²¤¨´ ˆŸˆ.'μμ¡Ð¥´¨¥ ¡Ñ¥¤¨´¥´´μ£μ¨´¸É¨ÉÊÉ Ö¤¥·´ÒÌ¨¸¸²¥¤μ¢ ´¨°. " Ê¡´ , 2006 Hashemi-Nezhad S. R. et al. E1-2006-54 Calibration of Track Detectors for Fission Rate Determination: an Experimental and Theoretical StudyThe calibration factor w, for the determination ofˇssion rate inˇssionable materials using the track detectors (mica, Lavsan, and soda glass) was studied experimentally and by the Monte Carlo method. It is shown that w obtained via low-energy particle inducedˇssion, can be used for the determination ofˇssion rate in a particle (neutron)ˇeld of unknown characteristics (energy and angular distribution) if in the determination of w and in its subsequent use the mean density of the tracks in the track detectors on both sides of theˇssion foil is used.

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Critical etching parameters of mica, Lexan and cellulose acetate track detectors

Cited by 5 publications

References 6 publications

Improve the surface structural and optical properties of PM-355 polymer by alpha particles

Improve the surface structural and optical properties of PM-355 polymer by alpha particles

Impact of electron irradiation on particle track etching response in polyallyl diglycol carbonate (PADC)

Calibration of track detectors for fission rate determination: An experimental and theoretical study

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