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116229

Characterization of the Effect of ɤ-Radiation Absorbed Dose on the Electrical Conductivity of Aqueous Urea Solutions in the Presence of Silica Gel :A Preliminary Dosimetric Study

Article

Last updated: 22 Jan 2023

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Abstract

ɤ-radiolysis of 6M- aqueous urea solutions, in the presence of silica gel (SG), significantly, increases the values of electrical conductivity (RIC) of the solutions, relative to that in the absence of SG. Some dosimetric characteristics were studied, such as the effects of absorbed dose, absorbed dose rate, and post-irradiation storage time on the RIC of the irradiated 6M- aqueous urea solutions in the presence of SG (>0.16mm - 0.2mm). A linear relationship between the RIC of the solutions and the absorbed dose (R2 = 0.998) was observed from 0.240 to 17.670 kGy. The uncertainty in the dose-response function was found to be in the range 0.040-0.320 at 95% confidence level. As dose rate increases the RIC-decreases in the range of 0.298 -1.19 kGy/h. The stability of the response (RIC) of the irradiated solutions is acceptable during post irradiation storage (14 days at 0 oC), where, the response (RIC) decreased at the end of the storage period, 0.49-2.8%%. The effective atomic number of this solution (7.08) was found to be compatible with biological tissues. The results show that the studied system can be considered as a promise dosimeter for low dose applications in the range 0.240 to 17.670 kGy, such as medical and food irradiation.

DOI

10.21608/ajnsa.2020.22233.1320

Keywords

urea, electrical conductivity, ɤ- Radiation, Silica gel

Authors

First Name

Kh.

Last Name

Sife-eldeen

MiddleName

A.

Affiliation

Egyptain atomic energy authority - national center for radiation research and technology

Email

sifekhdr@hotmail.com

City

Cairo

Orcid

-

Volume

53

Article Issue

4

Related Issue

17672

Issue Date

2020-10-01

Receive Date

2020-01-11

Publish Date

2020-10-01

Page Start

88

Page End

92

Print ISSN

1110-0451

Online ISSN

2090-4258

Link

https://ajnsa.journals.ekb.eg/article_116229.html

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https://ajnsa.journals.ekb.eg/service?article_code=116229

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10

Type

Original Article

Type Code

455

Publication Type

Journal

Publication Title

Arab Journal of Nuclear Sciences and Applications

Publication Link

https://ajnsa.journals.ekb.eg/

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Article

Created At

22 Jan 2023