skip to main content

DOE PAGESDOE PAGES

Title: Update on the MiniCLEAN dark matter experiment

The direct search for dark matter is entering a period of increased sensitivity to the hypothetical Weakly Interacting Massive Particle (WIMP). One such technology that is being examined is a scintillation only noble liquid experiment, MiniCLEAN. MiniCLEAN utilizes over 500 kg of liquid cryogen to detect nuclear recoils from WIMP dark matter and serves as a demonstration for a future detector of order 50 to 100 tonnes. The liquid cryogen is interchangeable between argon and neon to study the A² dependence of the potential signal and examine backgrounds. MiniCLEAN utilizes a unique modular design with spherical geometry to maximize the light yield using cold photomultiplier tubes in a single-phase detector. Pulse shape discrimination techniques are used to separate nuclear recoil signals from electron recoil backgrounds. MiniCLEAN will be spiked with additional ³⁹Ar to demonstrate the effective reach of the pulse shape discrimination capability. Assembly of the experiment is underway at SNOLAB and an update on the project is given.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [1] ;  [3] ;  [8] ;  [2] ;  [2] ;  [4] ;  [1] ;  [3] ;  [9] ;  [10] ;  [1] more »;  [3] ;  [8] ;  [8] ;  [3] ;  [5] ;  [5] ;  [11] ;  [8] ;  [1] ;  [12] ;  [10] ;  [5] ;  [9] ;  [4] ;  [4] ;  [1] ;  [13] ;  [14] ;  [9] ;  [1] ;  [6] ;  [5] ;  [4] ;  [6] ;  [2] ;  [6] « less
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
  3. MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States)
  4. Univ. of London, Surrey (United Kingdom)
  5. Univ. of Pennsylvania, Philadelphia, PA (United States)
  6. Syracuse Univ., Syracuse, NY (United States)
  7. National Institute of Standards and Technology, Boulder, CO (United States)
  8. Boston Univ., Boston, MA (United States)
  9. Univ. of South Dakota, Vermillion, SD (United States)
  10. Univ. of North Carolina, Chapel Hill, NC (United States)
  11. SNOLAB, Sudbury, ON (Canada)
  12. Yale Univ., New Haven, CT (United States)
  13. Univ. of California, Berkeley, CA (United States)
  14. MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States); SNOLAB Institute, Lively (Canada)
Publication Date:
OSTI Identifier:
1201763
Type:
Accepted Manuscript
Journal Name:
Physics Procedia
Additional Journal Information:
Journal Volume: 61; Journal Issue: C; Journal ID: ISSN 1875-3892
Publisher:
Elsevier
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS dark matter; liquid argon; liquid neon; scintillation; WIMP; solar neutrinos