High-Flux Isotope Reactor (HFIR)

Oak Ridge National Laboratory, Tennessee



Institution
Oak Ridge National Laboratory
Name
High-Flux Isotope Reactor (HFIR)
Building
HFIR
Reactor
Secondary Type
Gamma Irradiations
Tertiary Type
No Tertiary Type Defined
Core Functions
Advanced Fuels and materials irradiation, water-cooled, Be-moderated test reactor. Highest thermal and fast fluxes in the United States.
Unique Functions
NAA (2 PTS systems: 1) flux = 4E+14nv, Cd-ratio = 35, 2) flux = 4e13nv, Cd-ratio = 250, delayed neutron counting) Highest neutron flux, Cf-252 production, cold source installed in 2007. Runs at 85 MW power for most of the cycle except when they operate at 10% power for several hours for beam room RCT surveys, particularly after changing shielding configurations around the beamlines. During that time, they may also perform capsule irradiations in the hydraulic or pneumatic facilities.
Hotwork Facilities
hot cells, isotope processing, Irrad Fuels Exam Lab. IMET
Support Equipment
neutron beam instruments, SEM,
Radiological Limit
>1R/hr @ 30cm
Materials Allowed
alpha/beta/gamma
Sample Encapsulation
see user manual
Atmosphere
many available
Commissioning Date
1965
Recent Upgrade
1986 & 2007
RAM License
Department of Energy
License End Date
2099
Docket Number
0
User Facility
Yes
GAIN Partner
No
NSUF Partner
Yes
NE Use Percentage
No NE Use Percentage Defined
Utilization Hours
4032
Number Of Users
500
Number Of Staff
200
Point Of Contact
Kory Linton
Website URL
https://neutrons.ornl.gov/hfir
Scheduling URL
http://neutrons.ornl.gov/sites/default/files/OpForecast%202016-03-29.pdf
User Org URL
http://neutrons.ornl.gov/shug
Proposal URL
http://neutrons.ornl.gov/hfir/working-with-us
Date Of Data
April 25, 2016
User Guide
HFIR Main-R1.pdf