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Delayed neutron monitoring system for fuel failure detection at PARR-1

Technical Report:

Abstract

Fuel failure detection is important from the point of view of the safety of nuclear reactors. After the conversion and upgradation of Pakistan Research Reactor-1 (PARR-1), it was desired to install a fuel failure detection system to confirm the performance and integrity of the new fuel elements. The fuel failure detection system is based on monitoring of delayed neutrons emitted from fission products leaking into the primary coolant loop from the fuel. For this purpose two neutron detectors (BF3) were placed in the graphite moderator blocks which were installed at the outlet coolant pipe in the valve pit. The graphite blocks were enclosed in lead shield and polyethylene to reduce background due to gamma and neutrons. (author). 8 fig.
Authors:
Ayazuddin, S K; Ahmed, T; Perez, S [1] 
  1. Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan). Nuclear Engineering Div.
Publication Date:
Jul 01, 1993
Product Type:
Technical Report
Report Number:
PINSTECH-131
Reference Number:
SCA: 220600; PA: AIX-26:017061; EDB-95:028481; SN: 95001329634
Resource Relation:
Other Information: DN: 8 fig.; PBD: Jul 1993
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; PARR REACTOR; DELAYED NEUTRONS; FUEL ELEMENT FAILURE; FAILED ELEMENT DETECTION; FAILED ELEMENT MONITORS; PERFORMANCE; PRIMARY COOLANT CIRCUITS; REACTOR SAFETY; 220600; RESEARCH, TEST, TRAINING, PRODUCTION, IRRADIATION, MATERIALS TESTING REACTORS
OSTI ID:
10113672
Research Organizations:
Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan). Nuclear Engineering Div.
Country of Origin:
Pakistan
Language:
English
Other Identifying Numbers:
Other: ON: DE95615958; TRN: PK9400122017061
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
16 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Ayazuddin, S K, Ahmed, T, and Perez, S. Delayed neutron monitoring system for fuel failure detection at PARR-1. Pakistan: N. p., 1993. Web.
Ayazuddin, S K, Ahmed, T, & Perez, S. Delayed neutron monitoring system for fuel failure detection at PARR-1. Pakistan.
Ayazuddin, S K, Ahmed, T, and Perez, S. 1993. "Delayed neutron monitoring system for fuel failure detection at PARR-1." Pakistan.
@misc{etde_10113672,
title = {Delayed neutron monitoring system for fuel failure detection at PARR-1}
author = {Ayazuddin, S K, Ahmed, T, and Perez, S}
abstractNote = {Fuel failure detection is important from the point of view of the safety of nuclear reactors. After the conversion and upgradation of Pakistan Research Reactor-1 (PARR-1), it was desired to install a fuel failure detection system to confirm the performance and integrity of the new fuel elements. The fuel failure detection system is based on monitoring of delayed neutrons emitted from fission products leaking into the primary coolant loop from the fuel. For this purpose two neutron detectors (BF3) were placed in the graphite moderator blocks which were installed at the outlet coolant pipe in the valve pit. The graphite blocks were enclosed in lead shield and polyethylene to reduce background due to gamma and neutrons. (author). 8 fig.}
place = {Pakistan}
year = {1993}
month = {Jul}
}