First test runs of a dark-matter detector with interleaved ionization electrodes and phonon sensors for surface-event rejection

P. L. Brink, B. Cabrera, J. P. Castle, J. Cooley, L. Novak, R. W. Ogburn, M. Pyle, J. Ruderman, A. Tomada, B. A. Young, J. Filippini, P. Meunier, N. Mirabolfathi, B. Sadoulet, D. N. Seitz, B. Serfass, K. M. Sundqvist, D. S. Akerib, C. N. Bailey, M. R. DragowskyD. R. Grant, R. Hennings-Yeomans, R. W. Schnee

    Research output: Contribution to journalArticle

    Abstract

    To improve surface event rejection for the SuperCDMS experiment, we have designed, fabricated and tested a new detector concept where ionization electrodes are interleaved with phonon sensors on both sides of the detector. This i-(interleaved)-ZIP concept has electrical fields tangential to all detector surfaces. A surface event will produce an ionization signal in one charge read out channel, whereas an event within the bulk of the crystal will cause a signal in both charge read out channels. In addition, the symmetric phonon channels on both sides of the crystal, two semicircles on one side for x and two on the other for y, allow three-dimensional reconstruction of event locations through time delays and relative energy collection between the four phonon channels. Preliminary results from a 100 g Si prototype are presented.

    Original languageEnglish (US)
    Pages (from-to)414-416
    Number of pages3
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume559
    Issue number2
    DOIs
    StatePublished - Apr 14 2006

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    Keywords

    • Cold dark matter
    • Surface ionization detector

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

    Cite this

    Brink, P. L., Cabrera, B., Castle, J. P., Cooley, J., Novak, L., Ogburn, R. W., Pyle, M., Ruderman, J., Tomada, A., Young, B. A., Filippini, J., Meunier, P., Mirabolfathi, N., Sadoulet, B., Seitz, D. N., Serfass, B., Sundqvist, K. M., Akerib, D. S., Bailey, C. N., ... Schnee, R. W. (2006). First test runs of a dark-matter detector with interleaved ionization electrodes and phonon sensors for surface-event rejection. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 559(2), 414-416. https://doi.org/10.1016/j.nima.2005.12.026