Published January 2015 | Version v1
Report Metadata-only

KamLAND-PICO project to search for cosmic dark matter

Creators

  • 1. University of Tokushima, Institute of Socio-Arts and Sciences, Tokushima (Japan)
  • 2. Osaka University, Research Center for Nuclear Physics, Ibaraki, Osaka (Japan)

Description

KamLAND-PICO project aims to search for WIMPs dark matter by means of NaI(Tl) scintillator. To investigate the WIMPs candidate whose cross section is as small as 10-9 Pb, a pure NaI(Tl) crystal was developed by chemical processing and taking care of surroundings. The concentration of U and Th chain was reduced to 5.4±0.9 ppt and 3.3±2.2 ppt, respectively. It should be remarked that the concentration of 210Pb which was difficult to reduce reached to the high purity as 58±26 μBq/kg. (author)

Part of:
Proceedings of the 28th workshop on radiation detectors and their uses

Additional details

Additional titles

Augmented title (English)
Dark matter; WIMPs; NaI(Tl) scintillator; Low-background experiment; Ultra-pure crystal growth; Radioactive contamination; Gamma-ray spectroscopy; Dark matter detection; Particle physics; Astrophysics

Identifiers

URL
https://lib-extopc.kek.jp/preprints/PDF/2014/1425/1425011.pdf;

Publishing Information

Imprint Title
Proceedings of the 28th workshop on radiation detectors and their uses
Imprint Pagination
88 p.
Journal Page Range
p. 23-33
Report number
KEK-PROC--2014-11

Conference

Title
28. workshop on radiation detectors and their uses
Dates
28-30 Jan 2014
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
55057690
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
COSMIC RAY DETECTION; CRYSTALS; IMPURITIES; LEAD 210; NAI DETECTORS; NONLUMINOUS MATTER; PURIFICATION; SUPER-KAMIOKANDE NEUTRINO DETECTOR; THORIUM; URANIUM; WIMPS
Descriptors DEC
ACTINIDES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DETECTION; ELEMENTARY PARTICLES; ELEMENTS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; LEAD ISOTOPES; MATTER; MEASURING INSTRUMENTS; METALS; NEUTRINO DETECTORS; NUCLEI; POSTULATED PARTICLES; RADIATION DETECTION; RADIATION DETECTORS; RADIOISOTOPES; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
31 refs., 4 figs., 3 tabs.