Detection of the natural α decay of tungsten

@article{Cozzini2004DetectionOT,
  title={Detection of the natural $\alpha$ decay of tungsten},
  author={Cristina Cozzini and Godehard Angloher and Carlo Bucci and F. v. Feilitzsch and Dieter Hauff and S. Henry and Th. Jagemann and Josef Jochum and Hans Kraus and B. Majorovits and Vitalii Mikhailik and Jelena Ninkovi{\'c} and Federica Petricca and Walter Potzel and Franz Proebst and Yorck Ramachers and Wolfgang Rau and Marco Razeti and Wolfgang Seidel and M. R. Stark and Leo Stodolsky and A. J. B. Tolhurst and W. Westphal and H. R. T. Wulandari},
  journal={Physical Review C},
  year={2004},
  volume={70},
  pages={064606}
}
The natural $\ensuremath{\alpha}$-decay of $^{180}\mathrm{W}$ has been unambiguously detected for the first time. The $\ensuremath{\alpha}$ peak is found in a ($\ensuremath{\gamma}$, $\ensuremath{\beta}$, and neutron)-free background spectrum. This has been achieved by the simultaneous measurement of phonon and light signals with the CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) cryogenic detectors. A half-life of ${T}_{1∕2}=(1.8\ifmmode\pm\else\textpm\fi{}0.2)\ifmmode… 
Cryogenic Detectors for Rare Alpha Decay Search: A New Approach
The detection of $$^{148}$$148Sm alpha decay with a precise measured half-life of $$\left( {6.4_{-1.3}^{+1.2} }\right) \times 10^{15}y$$6.4-1.3+1.2×1015y and a Q-value of 1987.3 $$\pm $$± 0.5 keV was
Search forαdecay of naturally occurring osmium nuclides accompanied byγquanta
A search for $\alpha$ decay of naturally occurring osmium isotopes to the lowest excited levels of daughter nuclei has been performed by using an ultra-low-background Broad-Energy Germanium
First observation of $\alpha$ decay of $^{190}Pt$ to the first excited level $(E_{exc}=137.2 keV)$ of $^{186}Os$
The alpha decays of naturally occurring platinum isotopes, which are accompanied by the emission of gamma quanta, have been searched for deep underground (3600 m w.e.) in the Gran Sasso National
A search for rare and induced nuclear decays in hafnium
A measurement of hafnium foil using a modified ultra-low-background high purity detector with optimized sample-to-detector geometry was performed at Laboratori Nazionale del Gran Sasso. Radiopurity
Experimental searches for rare alpha and beta decays
Abstract.The current status of the experimental searches for rare alpha and beta decays is reviewed. Several interesting observations of alpha and beta decays, previously unseen due to their large
New experimental limits on the α decays of lead isotopes
Abstract.For the first time ancient Roman lead was used to grow a crystal of PbWO4 , and this crystal has subsequently been used as a cryogenic particle detector. The new device provides independent
$$\alpha$$α-Decay with extremely long half-lives
The improved Sahu (ImSahu) semiempirical relationship is applied to study the extremely long $$\alpha$$α-decay half-lives of the 68 nuclei with 62 $$\le {Z}\le 99.$$≤Z≤99. (Z is the charge number of
Radiopurity of CaWO$_4$ Crystals for Direct Dark Matter Search with CRESST and EURECA
The direct dark matter search experiment CRESST uses scintillating CaWO$_4$ single crystals as targets for possible WIMP scatterings. An intrinsic radioactive contamination of the crystals as low as
A detector module with highly efficient surface-alpha event rejection operated in CRESST-II Phase 2
The cryogenic dark matter experiment CRESST-II aims at the direct detection of WIMPs via elastic scattering off nuclei in scintillating CaWO$$_4$$4 crystals. We present a new, highly improved,
Beta/gamma and alpha backgrounds in CRESST-II Phase 2
The experiment CRESST-II aims at the detection of dark matter with scintillating CaWO$_4$ crystals operated as cryogenic detectors. Recent results on spin-independent WIMP-nucleon scattering from the
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 13 REFERENCES
Experimental detection of α-particles from the radioactive decay of natural bismuth
The only naturally occurring isotope of bismuth, 209Bi, is commonly regarded as the heaviest stable isotope. But like most other heavy nuclei abundant in nature and characterized by an exceptionally
α activity of natural tungsten isotopes
The indication for the alpha decay of 180-W with a half-life T1/2=1.1+0.8-0.4(stat)+-0.3(syst)x10^18 yr has been observed for the first time with the help of the super-low background 116-CdWO_4
Improved limits for natural α radioactivity of tungsten with a CaWO4 scintillating bolometer
Abstract An experiment has been carried out at the Canfranc Underground Laboratory with a 54 g CaWO4 scintillating bolometer in the frame of the ROSEBUD (Rare Objects SEarch with Bolometers
Model for cryogenic particle detectors with superconducting phase transition thermometers
We present data on a detector composed of an 18 g Si crystal and a superconducting phase transition thermometer which could be operated over a wide temperature range. An energy resolution of 1 ke V
Physics potential and prospects for the CUORICINO and CUORE experiments
Abstract The Cryogenic Underground Observatory for Rare Events (CUORE) experiment projects to construct and operate an array of 1000 cryogenic thermal detectors of TeO 2 , of a mass of 760 g each, to
Two-photon excitation and luminescence of a CaWO4 scintillator
Abstract Luminescence of a CaWO4 scintillator was studied in the temperature range 77– 500 K using intense laser excitation in the 450– 600 nm spectral region. Characteristics of the observed blue
Isotopic compositions of the elements 1997 (Technical Report)
Republication or reproduction of this report or its storage and/or dissemination by electronic means is permitted without the need for formal IUPAC permission on condition that an acknowledgement,
The Ame2003 atomic mass evaluation: (I). Evaluation of input data, adjustment procedures☆
Abstract This paper is the first of two parts presenting the result of a new evaluation of atomic masses ( Ame 2003). In this first part we give full information on the used and rejected input data
Tungsten isotope ratio determination by negative thermal ionization mass spectrometry
A precise determination of the isotopic abundances of tungsten with natural isotopic composition is presented. WO 3 − ions are generated by negative thermal ionization (NTI) in a double-filament ion
Limits on WIMP dark matter using sapphire cryogenic detectors
Abstract Data taken by CRESST with a cryogenic detector system based on 262 g sapphire crystals has been used to place limits on WIMP dark matter in the Galactic Halo. The experiment was especially
...
1
2
...