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International Journal of Innovation and Applied Studies
ISSN: 2028-9324     CODEN: IJIABO     OCLC Number: 828807274     ZDB-ID: 2703985-7
 
 
Sunday 15 December 2019

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Impact of Harshaw 6600 Plus Reader's Electronic Parameter Stability on Precision Dose Measurements of Workers Exposed to Ionizing Radiation in Côte d'Ivoire


Volume 25, Issue 4, March 2019, Pages 1181–1188

 Impact of Harshaw 6600 Plus Reader's Electronic Parameter Stability on Precision Dose Measurements of Workers Exposed to Ionizing Radiation in Côte d'Ivoire

Omer KOUAKOU1, Georges Alain MONNEHAN2, and Gogon B.D.L. HUBERSON3

1 Laboratoire de physique nucléaire et radioprotection, Unité de Formation et Recherche, Sciences des Structures de la Matière et Technologie, université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Laboratoire de physique nucléaire et radioprotection, Unité de Formation et Recherche, Sciences des Structures de la Matière et Technologie, université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
3 Laboratoire de physique nucléaire et radioprotection, Unité de Formation et Recherche, Sciences des Structures de la Matière et Technologie, université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire

Original language: English

Received 24 February 2019

Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


This work focuses on evaluation the electronic stability of the Harshaw 6600 Plus reader. For this evaluation, a control procedure of electronic components of the reader was developed to quantify normal ranges of variation and annual average trends. These are: the temperature of the nitrogen regulator thermocouple, the high voltage, the reference light, and the background noise of the photomultiplier tubes. The results show that the optimal operating values specific to our working conditions were respectively for pellet ii of 23.460C - 31.98oC; 797.1V - 798.8V; 73.10 nC - 90.29 nC; 0.037 nC - 0.44 nC; respectively for pellet (iii) of 23.680C-32.230C; 810.8V-811.6V; 78.14nC-97.95 nC. ; 0.07nC-0.31 nC; an evolution rates, not significant below 0.5% and 1% for the background of the photomultiplier tubes and the temperature of the thermocouple; constant 0.05% of the high voltage; not significant above 2% for the reference light parameter for positions (ii) and (iii) were respectively observed between years. The high voltage and the photomultiplier exhibited stability during all the time of our study, on the other hand certain parameters like the temperature of the thermocouple, the reference light sometimes presented instabilities. Overall, the current state of our system is satisfactory for its continued use.

Author Keywords: Stability, Electronic parameters, Pellet, Optimization condition.


How to Cite this Article


Omer KOUAKOU, Georges Alain MONNEHAN, and Gogon B.D.L. HUBERSON, “Impact of Harshaw 6600 Plus Reader's Electronic Parameter Stability on Precision Dose Measurements of Workers Exposed to Ionizing Radiation in Côte d'Ivoire,” International Journal of Innovation and Applied Studies, vol. 25, no. 4, pp. 1181–1188, March 2019.