Transient Reactor Test Facility (TREAT)

Idaho National Laboratory Idaho


Institution Name
Idaho National Laboratory
Name
Transient Reactor Test Facility (TREAT)
Building
MFC-720
Primary Facility Type
Reactor
Secondary Facility Type
No Secondary Facility Type Defined
Tertiary Facility Type
No Tertiary Facility Type Defined
Reactor Type
pulsing
Thermal Power (MW)
0.1
Pulse Power
19000
In Core Locations
1
Ex Core Locations
0
PTS
0
Flow Loops
1
Beam Ports
1
Core Functions
The Transient Reactor Test Facility (TREAT) provides transient testing of nuclear fuels and materials. The facility is used to study fuel melting behavior, interactions between fuel and coolant, and the potential for propagation of failure to adjacent fuel pins under conditions ranging from mild upsets to severe accidents. TREAT is an air-cooled, thermal-spectrum test facility specifically designed to evaluate the response of reactor fuels and structural materials to accident conditions. The reactor was originally constructed to test fast-reactor fuels, but its flexible design has also enabled its use for testing of light-water-reactor fuels as well as other exotic special-purpose fuels, such as space reactors. TREAT has an open-core design that allows for ease of experiment instrumentation and real-time imaging of fuel motion during irradiation, which also makes TREAT an ideal platform for understanding the irradiation response of materials and fuels on a fundamental level. TREAT was placed on standby in 1994. Operations were resumed in 2018. TREAT will provides a valuable capability to support efforts to develop accident-tolerant fuels for light-water reactors as well as the advanced reactor fuels, both of which will allow nuclear power to remain the primary source of emission-free baseload energy in the future.
Unique Functions
36" full assemblies. High-intensity (20 GW), short-duration (80 ms) neutron pulses for severe accident testing. Shaped transients at intermediate powers and times (flexible power shapes with up to 60 seconds duration). 120 kW steady state operation. Testing capability for static capsules, sodium loops, and water loops. Neutron radiography facility.
Hotwork Facilities
HFEF
Support Equipment
MFC, NRAD
Radiological Limit
>1R/hr @ 30cm
Materials Allowed
alpha/beta/gamma
Sample Encapsulation
none
Atmosphere
Na/He/Water/steam
Commissioning Date
1959
Recent Upgrade
2015
RAM License
Department of Energy
License End Date
2099
Docket Number
0
User Facility
Yes
User Org Web Page
No User Org Web Page Defined
Proposal Web Page
No Proposal Web Page Defined
GAIN Partner
No
NSUF Partner
Yes
NE Use Percentage
No NE Use Percentage Defined
Utilization Hours
No Utilization Hours Defined
Number Of Users
No Number Of Users Defined
Number Of Staff
No Number Of Staff Defined
Scheduling Web Page
No Scheduling Web Page Defined
Point Of Contact
Leigh Ann Astle
Point Of Contact Email
[email protected]
Point Of Contact Addr1
No Point Of Contact Addr1 Defined
Point Of Contact Addr2
No Point Of Contact Addr2 Defined
Point Of Contact City
No Point Of Contact City Defined
Point of Contact State
Idaho
Point Of Contact Zip
No Point Of Contact Zip Defined
Point Of Contact Phone
(208) 526-1154
Website URL
https://mfc.inl.gov/SitePages/Transient%20Reactor%20Test%20Facility.aspx
Date Of Data
July 1, 2015
Document Name
INL-Treat-User-Guide.pdf