Publications (7)
Long-term study of backgrounds in the DRIFT-II directional dark matter experiment
J. Brack, E. Daw, A. Dorofeev +26
Low-pressure gas Time Projection Chambers being developed for directional dark matter searches offer a technology with strong particle identification capability combined with the p…
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17
Ice Collaboration, J. Cherwinka, D. Grant +19
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the cryst…
First background-free limit from a directional dark matter experiment: results from a fully fiducialised DRIFT detector
J. B. R. Battat, J. Brack, E. Daw +28
The addition of O2 to gas mixtures in time projection chambers containing CS2 has recently been shown to produce multiple negative ions that travel at slightly different velocities…
First data from DM-Ice17
Ice Collaboration, J. Cherwinka, D. Grant +18
We report the first analysis of background data from DM-Ice17, a direct-detection dark matter experiment consisting of 17 kg of NaI(Tl) target material. It was codeployed with IceC…
First search for a dark matter annual modulation signal with NaI(Tl) in the Southern Hemisphere by DM-Ice17
Ice Collaboration, E. Barbosa de Souza, J. Cherwinka +26
We present the first search for a dark matter annual modulation signal in the Southern Hemisphere conducted with NaI(Tl) detectors, performed by the DM-Ice17 experiment. Nuclear re…
Simulation of muon radiography for monitoring CO stored in a geological reservoir
J. Klinger, S. J. Clark, M. Coleman +9
Current methods of monitoring subsurface CO, such as repeat seismic surveys, are episodic and require highly skilled personnel to acquire the data. Simulations based on simplif…
Radon in the DRIFT-II directional dark matter TPC: emanation, detection and mitigation
J. B. R. Battat, J. Brack, E. Daw +26
Radon gas emanating from materials is of interest in environmental science and also a major concern in rare event non-accelerator particle physics experiments such as dark matter a…