Simulation of neutrons produced by high-energy muons underground (2008)
Lindote, A., Araujo, H. M., Kudryavtsev, V. A., Robinson, M.
This article describes the Monte Carlo simulation used to interpret the measurement of the muon-induced neutron flux in the Boulby Underground Laboratory (North Yorkshire, UK), recently performed...
Measurements of neutrons produced by high-energy muons at the Boulby Underground Laboratory (2008)
Araujo, H. M., Blockley, J., Bungau, C., Carson, M. J., Chagani, H., Daw, E., ...
We present the first measurements of the muon-induced neutron flux at the Boulby Underground Laboratory. The experiment was carried out with an 0.73 tonne liquid scintillator that also served as an...
Measurement of single electron emission in two-phase xenon (2007)
Edwards, B., Araujo, H. M., Chepel, V., Cline, D., Durkin, T., Gao, J., ...
We present the first measurements of the electroluminescence response to the emission of single electrons in a two-phase noble gas detector. Single ionization electrons generated in liquid xenon are...
Improved Simulation of the Mass Charging for ASTROD I (2007)
Bao, Gang, Ni, Wei-Tou, Shaul, D. N. A., Araujo, H. M., Liu, Lei, Sumner, T. J.
The electrostatic charging of the test mass in ASTROD I (Astrodynamical Space Test of Relativity using Optical Devices I) mission can affect the quality of the science data as a result of spurious...
ASTROD I Charging Simulation and Disturbances (2007)
Bao, Gang, Shaul, D N A, Araujo, H M, Ni, Wei-Tou, Sumner, T J, Liu, Lei
ASTROD I is planned as a single spacecraft mission. It will use interferometric and pulse ranging techniques between the spacecraft and ground stations, to make high precision measurements of the...
Alner, G. J., Araujo, H. M., Bewick, A., Bungau, C., Camanzi, B., Carson, M. J., ...
Results are presented from the first underground data run of ZEPLIN-II, a 31 kg two phase xenon detector developed to observe nuclear recoils from hypothetical weakly interacting massive dark matter...
The ZEPLIN-III dark matter detector: instrument design, manufacture and commissioning (2006)
Akimov, D. Yu., Alner, G. J., Araujo, H. M., Bewick, A., Bungau, C., Burenkov, A. A., ...
We present details of the technical design and manufacture of the ZEPLIN-III dark matter experiment. ZEPLIN-III is a two-phase xenon detector which measures both the scintillation light and the...
The ZEPLIN-III dark matter detector: performance study using an end-to-end simulation tool (2006)
Araujo, H. M., Akimov, D. Yu., Alner, G. J., Bewick, A., Bungau, C., Camanzi, B., ...
We present results from a GEANT4-based Monte Carlo tool for end-to-end simulations of the ZEPLIN-III dark matter experiment. ZEPLIN-III is a two-phase detector which measures both the scintillation...
Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory (2005)
Alner, G J, Araujo, H M, Arnison, GJ, Barton, JC, Bewick, A, Bungau, C, ...
The maternal JAK/STAT pathway of Drosophila regulates embryonic dorsal-ventral patterning (2004)
Activation of NFkappaB plays a pivotal role in many cellular processes such as inflammation, proliferation and apoptosis. In Drosophila, nuclear translocation of the NFkappaB-related transcription...
Muon-induced neutron production and detection with GEANT4 and FLUKA (2004)
Araujo, H. M., Kudryavtsev, V. A., Spooner, N. J. C., Sumner, T. J.
We report on a comparison study of the Monte Carlo packages GEANT4 and FLUKA for simulating neutron production by muons penetrating deep underground. GEANT4 is found to generate fewer neutrons at...
Detailed Calculation of Test-Mass Charging in the LISA Mission (2004)
Araujo, H. M., Wass, P., Shaul, D., Rochester, G., Sumner, T. J.
The electrostatic charging of the LISA test masses due to exposure of the spacecraft to energetic particles in the space environment has implications in the design and operation of the gravitational...