A novel approach towards development of real time chemical dosimetry using pulsating sensor-based instrumentation

N. Malathi, P. Sahoo, K. Praveen, N. Murali

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The paper presents an innovative approach towards development of real time dosimetry using a chemical dosimeter for measurement of absorbed radiation dose in the range between 1 and 400 Gy. Saturated chloroform solution in water, a well known chemical dosimeter, is used to demonstrate the concept of online measurement of radiation dose. The measurement approach involves online monitoring of increase in conductivity of saturated chloroform solution due to progressive build up of traces of highly conducting HCl during exposure to gamma irradiation. A high performance pulsating sensor-based conductivity monitoring instrument has been used to monitor such real time change in conductivity of solution. A relation between conductivity shift and radiation dose has been established using radiochemical yield value (G value) of HCl. The G value of HCl in saturated chloroform dosimeter has been determined using laboratory developed pulsating sensor-based devices. In this connection dose rate of Co-60 gamma chamber was determined using Fricke dosimeter following a simple potentiometric measurement approach developed in-house besides conventional spectrophotometry. Results obtained from both measurement approaches agreed well. Complete instrumentation package has also been developed to measure real time radiation dose. The proposed real time radiation dosimeter is successfully tested in several measurement campaigns in order to assure its performance prior to its deployment in field. © 2013 The Author(s).
Original languageEnglish
Pages (from-to)963-972
Number of pages10
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume298
Issue number2
DOIs
Publication statusPublished - 2013

Fingerprint

Dosimeters
Dosimetry
Chloroform
Radiation
Sensors
Chlorine compounds
Spectrophotometry
Monitoring
Radiation Dosimeters
Equipment and Supplies
Irradiation
Water

Cite this

@article{eba0f034a6f24f4db0af37ef6a4e0f83,
title = "A novel approach towards development of real time chemical dosimetry using pulsating sensor-based instrumentation",
abstract = "The paper presents an innovative approach towards development of real time dosimetry using a chemical dosimeter for measurement of absorbed radiation dose in the range between 1 and 400 Gy. Saturated chloroform solution in water, a well known chemical dosimeter, is used to demonstrate the concept of online measurement of radiation dose. The measurement approach involves online monitoring of increase in conductivity of saturated chloroform solution due to progressive build up of traces of highly conducting HCl during exposure to gamma irradiation. A high performance pulsating sensor-based conductivity monitoring instrument has been used to monitor such real time change in conductivity of solution. A relation between conductivity shift and radiation dose has been established using radiochemical yield value (G value) of HCl. The G value of HCl in saturated chloroform dosimeter has been determined using laboratory developed pulsating sensor-based devices. In this connection dose rate of Co-60 gamma chamber was determined using Fricke dosimeter following a simple potentiometric measurement approach developed in-house besides conventional spectrophotometry. Results obtained from both measurement approaches agreed well. Complete instrumentation package has also been developed to measure real time radiation dose. The proposed real time radiation dosimeter is successfully tested in several measurement campaigns in order to assure its performance prior to its deployment in field. {\circledC} 2013 The Author(s).",
author = "N. Malathi and P. Sahoo and K. Praveen and N. Murali",
note = "Cited By :4 Export Date: 19 June 2018",
year = "2013",
doi = "10.1007/s10967-013-2531-x",
language = "English",
volume = "298",
pages = "963--972",
journal = "Journal of Radioanalytical Chemistry",
issn = "0022-4081",
publisher = "Springer Netherlands",
number = "2",

}

A novel approach towards development of real time chemical dosimetry using pulsating sensor-based instrumentation. / Malathi, N.; Sahoo, P.; Praveen, K.; Murali, N.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 298, No. 2, 2013, p. 963-972.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel approach towards development of real time chemical dosimetry using pulsating sensor-based instrumentation

AU - Malathi, N.

AU - Sahoo, P.

AU - Praveen, K.

AU - Murali, N.

N1 - Cited By :4 Export Date: 19 June 2018

PY - 2013

Y1 - 2013

N2 - The paper presents an innovative approach towards development of real time dosimetry using a chemical dosimeter for measurement of absorbed radiation dose in the range between 1 and 400 Gy. Saturated chloroform solution in water, a well known chemical dosimeter, is used to demonstrate the concept of online measurement of radiation dose. The measurement approach involves online monitoring of increase in conductivity of saturated chloroform solution due to progressive build up of traces of highly conducting HCl during exposure to gamma irradiation. A high performance pulsating sensor-based conductivity monitoring instrument has been used to monitor such real time change in conductivity of solution. A relation between conductivity shift and radiation dose has been established using radiochemical yield value (G value) of HCl. The G value of HCl in saturated chloroform dosimeter has been determined using laboratory developed pulsating sensor-based devices. In this connection dose rate of Co-60 gamma chamber was determined using Fricke dosimeter following a simple potentiometric measurement approach developed in-house besides conventional spectrophotometry. Results obtained from both measurement approaches agreed well. Complete instrumentation package has also been developed to measure real time radiation dose. The proposed real time radiation dosimeter is successfully tested in several measurement campaigns in order to assure its performance prior to its deployment in field. © 2013 The Author(s).

AB - The paper presents an innovative approach towards development of real time dosimetry using a chemical dosimeter for measurement of absorbed radiation dose in the range between 1 and 400 Gy. Saturated chloroform solution in water, a well known chemical dosimeter, is used to demonstrate the concept of online measurement of radiation dose. The measurement approach involves online monitoring of increase in conductivity of saturated chloroform solution due to progressive build up of traces of highly conducting HCl during exposure to gamma irradiation. A high performance pulsating sensor-based conductivity monitoring instrument has been used to monitor such real time change in conductivity of solution. A relation between conductivity shift and radiation dose has been established using radiochemical yield value (G value) of HCl. The G value of HCl in saturated chloroform dosimeter has been determined using laboratory developed pulsating sensor-based devices. In this connection dose rate of Co-60 gamma chamber was determined using Fricke dosimeter following a simple potentiometric measurement approach developed in-house besides conventional spectrophotometry. Results obtained from both measurement approaches agreed well. Complete instrumentation package has also been developed to measure real time radiation dose. The proposed real time radiation dosimeter is successfully tested in several measurement campaigns in order to assure its performance prior to its deployment in field. © 2013 The Author(s).

U2 - 10.1007/s10967-013-2531-x

DO - 10.1007/s10967-013-2531-x

M3 - Article

VL - 298

SP - 963

EP - 972

JO - Journal of Radioanalytical Chemistry

JF - Journal of Radioanalytical Chemistry

SN - 0022-4081

IS - 2

ER -