Detector development for the next phases of the cryogenic dark matter search: Results from 1 inch Ge and Si detectors

Cathy N. Bailey, Z. Ahmed, D. S. Akerib, P. L. Brink, B. Cabrera, J. P. Castle, J. Cooley, M. E. Danowski, M. R. Dragowsky, J. Filippini, D. R. Grant, R. Hennings-Yeomans, N. Mirabolfathi, L. Novak, R. W. Ogburn, M. Pyle, J. Ruderman, B. Sadoulet, R. W. Schnee, D. N. SeitzB. Serfass, K. M. Sundqvist, A. Tomada, B. A. Young

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The Cryogenic Dark Matter Search (CDMS) experiment is searching for Weakly Interacting Massive Particles (WIMPs) using detectors with the ability to discriminate between candidate (nuclear recoil) and background (electron recoil) events by measuring both phonon and ionization signals from recoils in the detector crystals. As CDMS scales up to greater WIMP sensitivity, it is necessary to increase the detector mass and further improve background discrimination. CDMS is engaged in ongoing fabrication and development of new detector designs in order to meet these criteria for the proposed SuperCDMS experiment. Thicker detector prototypes have been produced with new photolithographic masks. These masks have greater surface coverage of the quasi particle trap and transition edge sensor system to provide superior athermal phonon collection. Results from continuing laboratory tests are presented which already indicate improvement in discrimination parameters.

    Original languageEnglish (US)
    Pages (from-to)211-215
    Number of pages5
    JournalJournal of Low Temperature Physics
    Volume151
    Issue number1-2 PART 1
    DOIs
    StatePublished - Apr 2008

    Keywords

    • Dark matter
    • SuperCDMS

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Materials Science(all)
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Detector development for the next phases of the cryogenic dark matter search: Results from 1 inch Ge and Si detectors'. Together they form a unique fingerprint.

    Cite this