Radiological dose assessment for the hypothetical severe accident of the Tehran Research Reactor and corresponding emergency response

2017 ◽  
Vol 99 ◽  
pp. 272-278 ◽  
Author(s):  
Rohollah Ahangari ◽  
Omid Noori-Kalkhoran ◽  
Nahid Sadeghi
Keyword(s):  
Emergency Response ◽  
Research Reactor ◽  
Dose Assessment ◽  
Severe Accident ◽  
Tehran Research Reactor ◽  
Radiological Dose

Thermo-Hydraulic Calculation and Safety Analysis of the Tehran Research Reactor

2009 ◽  
Author(s):  
J. Jafari ◽  
M. K. Firuzjaee ◽  
S. Khakshournia ◽  
K. Sepanloo ◽  
F. D’Auria
Keyword(s):  
Steady State ◽  
Research Reactor ◽  
Nucleate Boiling ◽  
Operating Conditions ◽  
Coolant Flow ◽  
Severe Accident ◽  
Hydraulic Calculation ◽  
Pump Failure ◽  
Tehran Research Reactor ◽  
Safety Parameters

The aim of this study is to evaluate the thermal hydraulic parameters such as, Minimum DNBR, fuel, clad and coolant temperatures of the Tehran Research Reactor (TRR) core in order to assure that the thermal limitations are not exceeded at full power and steady-state and the loss-of-flow accident (LOFA) operating conditions and the existing design is adequate to assure that the consequences from this anticipated occurrence does not lead to a severe accident. The PARET and TRANS computer codes were used to analysis thermal-hydraulic and safety parameters under study steady-state conditions. Furthermore the LOFA as a consequence of two type of transients are analyzed; one related to main cooling pump failure accident (slow LOFA), and the other related to accidentally opening the flapper valve whereas the main cooling pump is in working (fast LOFA). The steady-state analysis involves the determination of the departure from nucleate boiling ratio (DNBR), the temperatures profile, heat flux across the hottest channel and etc. The LOFA analysis involves the power and coolant flow rate, the fuel centerline, clad surface and coolant outlet temperatures, and the occurring of coolant flow reversal.

Inspection of domestic nuclear fuel rods using neutron radiography at the Tehran Research Reactor

2016 ◽  
Vol 58 (9) ◽  
pp. 763-766 ◽  
Author(s):  
Mohammad Hosein Choopan Dastjerdi ◽  
Hossein Khalafi ◽  
Yaser Kasesaz ◽  
Amir Movafeghi
Keyword(s):  
Nuclear Fuel ◽  
Research Reactor ◽  
Neutron Radiography ◽  
Fuel Rods ◽  
Tehran Research Reactor ◽  
Nuclear Fuel Rods

USA–Iran, 2009–2010

2018 ◽  
Author(s):  
Nicholas J. Wheeler
Keyword(s):  
Nuclear Fuel ◽  
Research Reactor ◽  
Interpersonal Trust ◽  
Obama Administration ◽  
Face To Face ◽  
Tehran Research Reactor

This chapter examines the attempts by the first Obama Administration to reach out to Iran in an effort to build trust. It traces the failure of Obama’s diplomatic efforts to secure any reciprocation from Iranian leaders. The lack of reciprocation shows the problem of accurate signal interpretation when there is no trust. It focuses on the negotiations in 2009–10 over limiting Iran’s supply of nuclear fuel in return for refuelling the Tehran Research Reactor. The chapter argues these negotiations failed because of the lack of trust. What makes this case so important is that there was no face-to-face interaction, which this book argues is critical to the development of interpersonal trust and accurate signal interpretation.

Web-Based Training Course for Evaluating Radiological Dose Assessment in NRC’s License Termination Process

2008 ◽  
Vol 95 (suppl 2) ◽  
pp. S137-S142 ◽  
Author(s):  
D LePoire ◽  
P Richmond ◽  
J -J. Cheng ◽  
S Kamboj ◽  
J Arnish ◽  
...  
Keyword(s):  
Dose Assessment ◽  
Web Based ◽  
Training Course ◽  
Radiological Dose ◽  
Termination Process
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