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Träfflista för sökning "WFRF:(Povilus A.) srt2:(2013)"

Sökning: WFRF:(Povilus A.) > (2013)

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1.
  • Amole, C., et al. (författare)
  • Silicon vertex detector upgrade in the ALPHA experiment
  • 2013
  • Ingår i: Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment. - 0168-9002 .- 1872-9576. ; 732, s. 134-136
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>The Silicon Vertex Detector (SVD) is the main diagnostic tool in the ALPHA-experiment. It provides precise spatial and timing information of antiproton (antihydrogen) annihilation events (vertices), and most importantly, the SVD is capable of directly identifying and analysing single annihilation events, thereby forming the basis of ALPHA's analysis. This paper describes the ALPHA SVD and its upgrade, installed in the ALPHA's new neutral atom trap.</p>
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2.
  • Amole, C., et al. (författare)
  • Autoresonant-spectrometric determination of the residual gas composition in the ALPHA experiment apparatus
  • 2013
  • Ingår i: Review of Scientific Instruments. - 0034-6748 .- 1089-7623. ; 84:6, s. 065110
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Knowledge of the residual gas composition in the ALPHA experiment apparatus is important in our studies of antihydrogen and nonneutral plasmas. A technique based on autoresonant ion extraction from an electrostatic potential well has been developed that enables the study of the vacuum in our trap. Computer simulations allow an interpretation of our measurements and provide the residual gas composition under operating conditions typical of those used in experiments to produce, trap, and study antihydrogen. The methods developed may also be applicable in a range of atomic and molecular trap experiments where Penning-Malmberg traps are used and where access is limited.</p>
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