LOFT advanced densitometer ARA III/L1-4 preparatory tests

Technical Report · Fri Mar 03 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6871635· OSTI ID:6871635

Wood, D. B.

A report on the LOFT advanced densitometer lab testing that was conducted at ARA-3 in preparation for the non-nuclear L1-4 blowdown at LOFT is presented. The densitometer uses a pulse height analysis method for determining PWR coolant fluid chordal average density. The average density of the coolant fluid along the Cs-137 gamma beam path is determined by measuring the uncollided flux count rate in a Cs-137 photopeak and knowing the LOFT primary coolant hot leg piping geometry. This is an application of a gamma densitometer technique which processes discrete pulses and with no pulse pile-up or integration taking place. Time sampling of the piping and fluid attenuated Cs-137 spectrum provides the data which is related to the changing coolant fluid density as a function of time.

• Research Organization: Idaho National Engineering Lab., Idaho Falls (USA)
• DOE Contract Number: EY-76-C-07-1570
• OSTI ID: 6871635
• Report Number(s): LTR-141-72
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
DENSITOMETERS
LOFT REACTOR
MEASURING INSTRUMENTS
PERFORMANCE TESTING
PHOTOMETERS
PWR TYPE REACTORS
REACTORS
RESEARCH AND TEST REACTORS
TANK TYPE REACTORS
TEST FACILITIES
TEST REACTORS
TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS