Published December 20, 2013 | Version v1
Journal article

PICO-LON Dark Matter Search

  • 1. Insitiute of Socio- Arts and Sciences, The University of Tokushima, 1-1 Minamijosanjimacho Tokushima city, Tokushima, 770-8502 (Japan)
  • 2. Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka Ibaraki city Osaka, 567-0047 (Japan)
  • 3. Graduate School and Faculty of Human Environment, Osaka Sangyo University, 3-1-1 Nakagaito, Daito, Osaka, 574-8530 (Japan)
  • 4. Research Centre for Neutrino Science, Tohoku University 6-3, Aramaki Aza Aoba, Aobaku Sendai, Miyagi, 980-8578 (Japan)
  • 5. Kavli Institute for the Physics and Mathematics of the Universe, 5-1-5 Kashiwanoha, Kashiwa, 277-8583 (Japan)

Description

It is an important task to find an annual modulation of WIMPs signal for identifying dark matter signal. To search for annual modulation signal by means of inorganic scintillators, a large mass and a highly radiopure detector is needed. PICO-LON (Planar Inorganic Crystal Observatory for LOw background Neutr(al)inos) is a dark matter search project with multi-array NaI(Tl) scintillators. The test module of PICO-LON whose dimension is 15cm×15cm×0.1cm gives enough performance, energy resolution and low energy threshold, for dark matter search. The highly radiopure NaI(Tl) crystal is indispensable to start a large mass experiment. We have developed highly radiopure NaI(Tl) scintillator. The U and Th chain impurities were precisely measured by meand of pulse shape analysis for NaI(Tl) scintillators. The future plan of KamLAND-PICO dark matter search project is proposed

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/469/1/012011

Additional details

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
469
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
4. workshop on directional detection of dark matter
Acronym
CYGNUS 2013
Dates
10-12 Jun 2013
Place
Toyama (Japan)