Liquid Radiochromic from Roselle Dye Extract for Gamma-ray Dosimetry Applications at Medium Dose Levels

Indah Nursyamsi Handayani, Cuk Imawan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The food sterilization process with the gamma irradiation technique is highly determined by the accuracy of the absorbed dose. One of the absorbed dose measurement systems that can be used to monitor food irradiation processes is radiochromic dosimeter. So, the application of radiochromic dosimeter in the food irradiation is very necessary. This paper reports a simple dosimetry system using liquid radiochromic. The liquid dosimeter dye was prepared from Hibiscus sabdariffa L. (Roselle) dried flower extract using the maceration method in ethanol solution. The dosimeter was tested using gamma ray from a Cobalt-60 source at the medium dose level from 1 to 10 kGy. The color of the dye fades from red to clear gradually with an increasing dose of gamma irradiation. UV-visible characterization shows that the dye solution has an absorption peak at 530 nm. This peak absorption value decreases as the dose of irradiation increases. The stability of unirradiated and irradiated liquid radiochromic dosimeters has been observed for 30 days and shows good stability. These results indicate that liquid radiochromic can be applied as a routine dosimeter for the treatment of food irradiation at the medium dose level.

Original languageEnglish
Title of host publicationISSIMM 2018 - 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology, Proceeding
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages115-118
Number of pages4
ISBN (Electronic)9781728113692
DOIs
Publication statusPublished - 1 Dec 2018
Event3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology, ISSIMM 2018 - Depok, Indonesia
Duration: 4 Dec 20185 Dec 2018

Publication series

NameISSIMM 2018 - 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology, Proceeding

Conference

Conference3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology, ISSIMM 2018
CountryIndonesia
CityDepok
Period4/12/185/12/18

Keywords

  • dosimeter
  • gamma rays
  • irradiation
  • maceration
  • radiochromic
  • Roselle

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