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Radiation dosimetry of the reactor RA at Vinca, Measurements by isothermal calorimeter

Abstract

1. In this work we have made attempts to: - analyze the problems of reactor radiation dosimetry; - describe the solutions of this problem by the calorimetric method; - present our results of measurements of the reactor RA at Vinca, and to describe the method, apparatus and measuring equipment used. 2. Use was made of the isothermal calorimeter with thermistors which measured the absorbed dose rates within the range 10{sup 4}-10{sup 6} rad/h, with an accuracy of 2-5%. It was shown that the reactor radiation in which the thermal neutron flux is up to the order of magnitude 10{sup 12} n/cm{sup 2}/sec, and the integral thermal neutron flux up to about 10{sup 16} n/cm{sup 2} exerts no significant influence upon the working characteristics out of the thermistors used. 3. Determination was made of the absorbed dose distribution into the gamma-ray and the neutron contribution. For this purpose we used 3 materials: ordinary water, heavy water and graphite. 4. Measurements were carried out in two vertical experimental holes 'VK-5' and 'VK-6' of the reactor RA at several heights. It has been shown that the absorbed dose height distribution agrees well with the thermal flux distribution curve, although the relations of the  More>>
Authors:
Radak, B; Markovic, V; Draganic, I [1] 
  1. Institute of nuclear sciences Boris Kidric, Vinca, Beograd (Serbia and Montenegro)
Publication Date:
Dec 15, 1961
Product Type:
Technical Report
Report Number:
INIS-CS-0281; IZ-051-0061-1961
Resource Relation:
Other Information: 9 tabs, 11 figs, 9 refs; 14 tabs, 30 figs, 15 refs; Related Information: In: Calorimeter measurements of absorbed doses at the heavy water enriched uranium reactor, Kalorimetrijska merenja apsorbovanih doza u reaktoru na tesku vodu i obogaceni uran, by Markovic, V. [Institute of Nuclear Sciences Boris Kidric, Odeljenje za radijacionu hemiju, Vinca, Beograd (Serbia and Montenegro)], 101 pages.
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CALORIMETRIC DOSEMETERS; EXPERIMENTAL CHANNELS; MEASURING METHODS; NEUTRON FLUX; R-A REACTOR; SPATIAL DISTRIBUTION; THERMAL NEUTRONS; THERMISTORS
OSTI ID:
20871697
Research Organizations:
Savezna komisija za nuklearnu energiju (Yugoslavia)
Country of Origin:
Serbia and Montenegro
Language:
English
Other Identifying Numbers:
TRN: CS06RA748039534
Availability:
Available from INIS in electronic form; Also available from the Institute of nuclear sciences Vinca, Bulletin of the Boris Kidric Institute of nuclear sciences, v. 12(253), Oct 1961
Submitting Site:
INIS
Size:
page(s) 63
Announcement Date:
Jun 11, 2007

Citation Formats

Radak, B, Markovic, V, and Draganic, I. Radiation dosimetry of the reactor RA at Vinca, Measurements by isothermal calorimeter. Serbia and Montenegro: N. p., 1961. Web.
Radak, B, Markovic, V, & Draganic, I. Radiation dosimetry of the reactor RA at Vinca, Measurements by isothermal calorimeter. Serbia and Montenegro.
Radak, B, Markovic, V, and Draganic, I. 1961. "Radiation dosimetry of the reactor RA at Vinca, Measurements by isothermal calorimeter." Serbia and Montenegro.
@misc{etde_20871697,
title = {Radiation dosimetry of the reactor RA at Vinca, Measurements by isothermal calorimeter}
author = {Radak, B, Markovic, V, and Draganic, I}
abstractNote = {1. In this work we have made attempts to: - analyze the problems of reactor radiation dosimetry; - describe the solutions of this problem by the calorimetric method; - present our results of measurements of the reactor RA at Vinca, and to describe the method, apparatus and measuring equipment used. 2. Use was made of the isothermal calorimeter with thermistors which measured the absorbed dose rates within the range 10{sup 4}-10{sup 6} rad/h, with an accuracy of 2-5%. It was shown that the reactor radiation in which the thermal neutron flux is up to the order of magnitude 10{sup 12} n/cm{sup 2}/sec, and the integral thermal neutron flux up to about 10{sup 16} n/cm{sup 2} exerts no significant influence upon the working characteristics out of the thermistors used. 3. Determination was made of the absorbed dose distribution into the gamma-ray and the neutron contribution. For this purpose we used 3 materials: ordinary water, heavy water and graphite. 4. Measurements were carried out in two vertical experimental holes 'VK-5' and 'VK-6' of the reactor RA at several heights. It has been shown that the absorbed dose height distribution agrees well with the thermal flux distribution curve, although the relations of the absorbed doses of the two holes are not in accordance with the corresponding thermal flux relations (author)}
place = {Serbia and Montenegro}
year = {1961}
month = {Dec}
}