ساخت بلور سدیم کلرید خالص به روش همرسوبی در اندازه‌های متفاوت و بررسی خواص ترمولومینسانس آن در پرتودهی با گاما
Authors
Abstract:
In this research, Pure Sodium chloride (NaCl) Nano and micro particles were produced for the first time by using the surfactant in co-precipitation method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were utilized to analyze the shape and size of the synthesized material. The role of CTAB surfactant on morphology of particles was also investigated. The results show that CTAB surfactant has important role on controlling the particle size, such that an increase in the surfactant content, increases termoluminescence (TL) sensitivity. Thermoluminescence general order kinetics model was employed in a computer program for obtaining the kinetics parameters. TL glow curve of bulk phosphors exhibit four overlapping glow peaks at 367, 378, 432 and 479 °K and for nanophosphors, three overlapping glow peaks are observed at 360, 398 and 451°K. Prepared nanoparticles exhibit a linear dose response up to 1000 Gy following gamma irradiation with 60Co source. Also, the micro scaled particles are less sensitive than those of nanoparticles.
similar resources
ساخت بلور سدیم کلرید خالص به روش همرسوبی در اندازه های متفاوت و بررسی خواص ترمولومینسانس آن در پرتودهی با گاما
در این پژوهش، نانو و میکروذرات سدیم کلرید خالص به روش همرسوبی و با استفاده از سورفکتنت ساخته شده اند. ساختار، اندازه و شکل ذرات توسط دستگاه پراکندگی اشعۀ ایکس (xrd)و میکروسکوپ الکترونی روبشی(sem) تعیین شده است. همچنین نقش سورفکتنت ctab در مورفولوژی این ذرات مورد بررسی قرار گرفته است. نتایج به دست آمده نشان می دهد که افزایش ctab تأثیر بسزایی در کنترل اندازۀ ذرات و افزایش حساسیت ترمولومینسانسی ن...
full textاثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین
Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...
full textاثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین
Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...
full textسنتز نانوذرات منیزیم سولفات آلاییده شده با مس به روش هیدروترمال و بررسی خاصیت ترمولومینسانس آن‌ها در پرتودهی گاما
In this research MgSO4:Cu nanoparticles was synthesized for the first time by hydrothermal method. The size of the produced nanoparticles calculated by scherrer equation was about 36 nm using XRD pattern which was in agreement with that of SEM analysis. Thermoluminescence (TL) properties of the MgSO4:Cu nanoparticles was investigated in gamma irradiation by 60Co source. Optimum amount of impuri...
full textساخت دزیمتر لیتیم فلوراید آلاییده با استرانسیم و سریم به روش ذوب و مطالعه خواص ترمولومینسانس آن
In this work, lithium fluoride doped with impurities of Sr and Ce, was produced using melting method and its thermoluminescence (TL) properties was investigated. The optimized values of 0.5 mol% of Sr and 0.1 mol% of Ce were obtained for the most TL sensitivity. Reusability of the prepared samples has been investigated for 5 cycles of annealing, irradiation and reading and no considerable chang...
full textMy Resources
Journal title
volume 3 issue 2
pages 27- 32
publication date 2015-06
By following a journal you will be notified via email when a new issue of this journal is published.
No Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023