Validation of Simplified Evaluation Models for First Peak Power, Energy, and Total Fissions of a Criticality Accident in a Nuclear Fuel Processing Facility by TRACY Experiments

2004 ◽  
Vol 148 (3) ◽  
pp. 235-243 ◽  
Author(s):  
Yasushi Nomura ◽  
Hiroshi Okuno ◽  
Yoshinori Miyoshi
Keyword(s):  
Nuclear Fuel ◽  
Peak Power ◽  
Fuel Processing ◽  
Criticality Accident ◽  
Evaluation Models ◽  
Processing Facility

Development of Criticality Accident Alarm System to Ensure Safe Retrieval of Spent Nuclear Fuel from Lepse Floating Maintenance Base

ANRI ◽  
2020 ◽  
pp. 45-53
Author(s):  
A. Lachugin ◽  
M. Kocherygin ◽  
A. Gayazov ◽  
Yury Martynyuk ◽  
A. Vasil'ev
Keyword(s):  
System Design ◽  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Alarm System ◽  
Criticality Accident ◽  
Hazardous Area ◽  
Key Features

The paper presents basic results of development of a criticality accident alarm system to ensure safe retrieval of the spent nuclear fuel from the Lepse Floating Maintenance Base. The key features and engineering aspects of the system design are described. Locations of criticality detector units and selected alarm level settings are justified, hazardous area boundaries were identified, and parameters to identify inadequately protected zones were calculated. The SRKS-01D criticality accident alarm system by SPC “Doza” was selected as base equipment. The system was commissioned in 2019 and has been successfully operated for more than 6 months.

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