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S. Derek Rountreewww.kimballton.org
U.S. Underground Physics Sites
KURF
Soudan
SURF
WIPP
Backgrounds in Kimballton Kimballton (limestone) (Bq/kg) 40K 15.5±1 226Ra 1.5±0.2 226Th 0.7±0.2
Radon concentration 222Rn < 14.8 Bq/m3
1450 m.w.e. 1/m2/min.
Gran Sasso (Dolomite rock) (Bq/kg) 40K 15 226Ra 5 226Th 0.3
Radon concentration 222Rn 40 – 70 Bq/m3
2500 m.w.e. 1/m2/hr.
KURF
Building KURF (for < $200k; funds from Provost, College of Science, Research Division)
35’ x 100’ x 20’
30‐60ft
40ft
35ft
20ft
Parking area
A. mini‐LENS (Low Energy Neutrino Spectroscopy)Virginia Tech, LouisianaState University, BNL
B. Neutron SpectrometerUniversity of Maryland, NIST
C. Decay to Excited StatesDuke University
D. HPGe Low‐Bkgd ScreeningNorth Carolina State University,University of North Carolina, Virginia Tech
E. MALBEK (Majorana 0)University of North Carolina
F. 39Ar Depleted ArgonPrinceton University
G. Office
Current KURF Users
A B
C D
E
F
G
Sub‐set of users for biannual training
10/29/2012 S. Derek Rountree
Dark Containment
LENS
LENS ϯ
ϯSession X11: Kimballton Underground Research Facility Tuesday, April 3, 2012 1:30 PM–1:42 PM
Lead Shielding NaI Annulus
PlasticScintillators
HPGeDetectors
decaysample
MALBEK
39Ar depleted Argon
Possible future directions?
LENS?Nuclear Astrophysics?
35 x 100
x 20
(available location)
100’ grid
looking down 14 East #2(top of escape‐way ladder from 15th level seen on left)
looking down 14 East #1(40 ft wide, 90 ft high typ.)tripod is 600 ft from KURF (seen in the background)
escape‐way ladder to 13th level
Other uses? Please contact us.Director:
R. Bruce Vogelaar([email protected])
Manager:S. Derek Rountree ([email protected])