ISSN: 1817-2695

Volume 34, Issue 1

Volume 34, Issue 1, Winter 2008, Page 1-59


The Electric Treatment to Increase the Sensitivity of CR-39 Plastic Nuclear Detector

Ali A. Abbas

Journal of Basrah Researches (Sciences), Volume 34, Issue 1, Pages 1-7

The bulk etch rate for plastic nuclear track detector has been determined as a function of changing sensitivity for the detector, which are inversely proportioned.
This process has been done by having the detector being treated with DC electric field with different intensities and at constant intervals. It has been noted that the bulk etch rate decreases as the electric field values increase, which leads to the development of the detector sensitivity. Moreover, this treatment affects the tracks irradiated by neutrons, which dose not affects the tracks irradiated by alpha particles either. And this is due to the affect of specific ionization, which depends on the charge of incident particle.

Chemical Polymerization of anew Semiconductive Polymer (Maleate 4-4- diazobenzene phthalate Polymer) (MDAM) Using New Azo Compound, Study of its Electrical Properties.

Hameed A. hamadi; Ziad T. Falick; Nadhim A. Abdullah

Journal of Basrah Researches (Sciences), Volume 34, Issue 1, Pages 38-48

Anew polymer has been prepared in this research by using condensation polymerization of three monomers which are Malic anhydride ,ophthalmic acid , and p-dihydroxyphenyl azobenzen .First of all, p-dihydroxyphenyl azobenzen was prepared and identified by the use of IR and UV to identify both the new p-dihydroxyphenyl azobenzen and the new prepared polymer .Then casting method was used to prepare the synthesized polymer thin films to study it’s electrical properties by the use of two probes methods. It was notice that bulk conductivity of the polymer films (DC conductivity) was (6.6 x 10-9) S/cm In room temperature . More ever, the polymer showed unremarkable response when unpurified with iodine since a small increase is noticed in the electrical conductivity.