Research output: Contribution to Journal/Magazine › Journal article › peer-review
Potential dark matter detector? the detection of low energy neutrons by superfluid 3He. / Bradley, DI; Bunkov, YM; Cousins, DJ et al.
In: Physical review letters, Vol. 75, No. 10, 04.09.1995, p. 1887-1890.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Potential dark matter detector?
T2 - the detection of low energy neutrons by superfluid 3He
AU - Bradley, DI
AU - Bunkov, YM
AU - Cousins, DJ
AU - Enrico, MP
AU - Fisher, Shaun
AU - Follows, MR
AU - Guénault, A.M.
AU - Hayes, WM
AU - Pickett, George
AU - Sloan, T
PY - 1995/9/4
Y1 - 1995/9/4
N2 - Using an existing experiment we have demonstrated in a pilot study that superfluid He-3 at 100 mu K can be used as a nuclear recoil detector sensitive to neutron and gamma interactions depositing energies down to a few hundred eV. The deposited energy is converted to He-3 quasiparticles which are detected by their damping effect on a vibrating wire resonator in the liquid. The system can be calibrated independently but a convenient fixed point is provided by the exothermic reaction n + He-3(2) = p + H-3(1) + 764 keV. Given the great potential for improvement we propose that the system might make a sensitive weakly interacting massive particle detector.
AB - Using an existing experiment we have demonstrated in a pilot study that superfluid He-3 at 100 mu K can be used as a nuclear recoil detector sensitive to neutron and gamma interactions depositing energies down to a few hundred eV. The deposited energy is converted to He-3 quasiparticles which are detected by their damping effect on a vibrating wire resonator in the liquid. The system can be calibrated independently but a convenient fixed point is provided by the exothermic reaction n + He-3(2) = p + H-3(1) + 764 keV. Given the great potential for improvement we propose that the system might make a sensitive weakly interacting massive particle detector.
KW - PARTICLES
KW - WIRE
KW - VELOCITY
KW - BEHAVIOR
U2 - 10.1103/PhysRevLett.75.1887
DO - 10.1103/PhysRevLett.75.1887
M3 - Journal article
VL - 75
SP - 1887
EP - 1890
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 10
ER -