First results of a cryogenic optical photon counting imaging spectrometer using a DROID array (2009)
Hijmering, R. A., Verhoeve, P., Martin, D. D. E., Venn, R., Van Dordrecht, A., Groot, P. J.
Context. In this paper we present the first system test in which we demonstrate the concept of using an array of Distributed Read Out Imaging Devices (DROIDs) for optical photon detection. Aims....
Duckitt, R. W., Buxton-Thomas, R., Walker, J., Cheek, E., Bewick, V., Venn, R., ...
Background Several physiological scoring systems (PSS) have been proposed for identifying those at risk of deterioration. However, the chosen specific physiological values chosen and the scores...
Imaging spectroscopy with Ta/Al DROIDs: Performance for different absorber lengths (2006)
Hijmering, R. A., Verhoeve, P., Martin, D. D. E., Peacock, A., Kozorezov, A. G., Venn, R.
To overcome the limited field of view that can be achieved with single Superconducting Tunneling Junctions (STJ) arrays, Distributed Read Out Imaging Devices (DROIDs) are being developed. DROIDs...
Brammertz, G., Kozorezov, A. G., Hartog, R. Den, Verhoeve, P., Peacock, A., Wigmore, J. K., ...
We recently predicted the formation of a highly non-equilibrium quasiparticle (qp) distribution in low TC multiple tunnelling superconducting tunnel junctions (STJs) [1]. The situation arises through...
Optical photon detection in Al Superconducting Tunnel Junctions (2004)
Brammertz, G., Peacock, A., Verhoeve, P., Martin, D., Venn, R.
We report on the successful fabrication of low leakage aluminium superconducting tunnel junctions with very homogeneous and transparent insulating barriers. The junctions were tested in an adiabatic...
Future optical detectors based on Al superconducting tunnel junctions (2004)
Brammertz, G., Verhoeve, P., Martin, D., Peacock, A., Venn, R.
Superconducting tunnel junctions are being developed for application as photon detectors in astronomy. We present the latest results on the development of very high quality, very low critical...
Kozorezov, Alexander G., Brammerts, G., Wigmore, J. K., Den Hartog, R., Verhoeve, P., Peacock, A., ...
Due to the slowness of the electron–phonon interaction in small gap STJs currently being developed as the latest generation of photon detectors, during the device operation a broad statistical...
Perioperative fluid optimization (2004)
Stacey, J., Wakeling, H., Forni, L., Venn, R., Parker, M. J., Griffiths, R., ...
Pathophysiology and clinical implications of perioperative fluid excess (2003)
Mitchell, G., Hucker, T., Venn, R., Wakeling, H., Forni, L., Sartain, J., ...
Modelling the energy gap in transition metal/aluminium bilayers" (2002)
Brammertz, G., Golubov, A., Peacock, A., Verhoeve, P., Goldie, D. J., Venn, R.
We present an application of the generalised proximity effect theory.
Venn, R., Steele, A., Richardson, P., Poloniecki, J., Grounds, M., Newman, P.
Background. A prospective, randomized controlled trial comparing conventional intraoperative fluid management with two differing methods of invasive haemodynamic monitoring to optimize intraoperative...
Brammertz, G., Peacock, A., Verhoeve, P., Kozorezov, A., Hartog, R. Den, Rando, N., ...
A 6x6 array of symmetrical V/Al/AlOx/Al/V Superconducting Tunnel Junctions (STJs) was fabricated. The base electrode is a high quality epitaxial film with a residual resistance ratio (RRR) of ~30....
Distributed read-out imaging devices for X-ray imaging spectroscopy (2000)
Den Hartog, R, Martin, D, Kozorezov, A G, Verhoeve, P, Rando, N, Peacock, A, ...
Development of an optical cryogenic camera based on superconducting tunnel junction Arrays (1997)
Rando, N, Andersson, S, Collaudin, B, Gondoin, P, Verveer, J, Verhoeve, P, ...