Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project

V. Hannen; E. Aprile; F. Arneodo; L. Baudis; M. Beck; K. Bokeloh; A. D. Ferella; K. Giboni; R. F. Lang; O. Lebeda; H. W. Ortjohann; M. Schumann; A. Spalek; D. Venos; C. Weinheimer

doi:10.1088/1748-0221/6/10/P10013

Limits on the release of Rb isotopes from a zeolite based ^83mKr calibration source for the XENON project

V. Hannen, E. Aprile, F. Arneodo, L. Baudis, M. Beck, K. Bokeloh, A. D. Ferella, K. Giboni, R. F. Lang, O. Lebeda, H. W. Ortjohann, M. Schumann, A. Spalek, D. Venos, C. Weinheimer

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The isomer ^83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived mother isotope ⁸³Rb(T = 86.2 d) has to be ruled out. In this work the release of ⁸³Rb atoms from a 1.8 MBq ⁸³Rb source embedded in zeolite beads has been investigated. To do so, a cryogenic trap has been connected to the source for about 10 days, after which it was removed and probed for the strongest ⁸³Rbγ-rays with an ultra-sensitive Germanium detector. No signal has been found. The corresponding upper limit on the released ⁸³Rb activity means that the investigated type of source can be used in the XENON project and similar low-background experiments as ^83mKr generator without a significant risk of contaminating the detector. The measurements also allow to set upper limits on the possible release of the isotopes ⁸⁴Rb and ⁸⁶Rb, traces of which were created alongside the production of ⁸³Rb at the Rez cyclotron.

Original language	English (US)
Article number	P10013
Journal	Journal of Instrumentation
Volume	6
Issue number	10
DOIs	https://doi.org/10.1088/1748-0221/6/10/P10013
State	Published - Oct 2011

Keywords

Detector alignment and calibration methods (lasers, sources, particle-beams)
Noble-liquid detectors (scintillation, ionization two-phase)

ASJC Scopus subject areas

Instrumentation
Mathematical Physics

Access to Document

10.1088/1748-0221/6/10/P10013

Cite this

Hannen, V., Aprile, E., Arneodo, F., Baudis, L., Beck, M., Bokeloh, K., Ferella, A. D., Giboni, K., Lang, R. F., Lebeda, O., Ortjohann, H. W., Schumann, M., Spalek, A., Venos, D., & Weinheimer, C. (2011). Limits on the release of Rb isotopes from a zeolite based ^83mKr calibration source for the XENON project. Journal of Instrumentation, 6(10), Article P10013. https://doi.org/10.1088/1748-0221/6/10/P10013

Hannen, V, Aprile, E, Arneodo, F, Baudis, L, Beck, M, Bokeloh, K, Ferella, AD, Giboni, K, Lang, RF, Lebeda, O, Ortjohann, HW, Schumann, M, Spalek, A, Venos, D & Weinheimer, C 2011, 'Limits on the release of Rb isotopes from a zeolite based ^83mKr calibration source for the XENON project', Journal of Instrumentation, vol. 6, no. 10, P10013. https://doi.org/10.1088/1748-0221/6/10/P10013

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title = "Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project",

abstract = "The isomer 83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived mother isotope 83Rb(T = 86.2 d) has to be ruled out. In this work the release of 83Rb atoms from a 1.8 MBq 83Rb source embedded in zeolite beads has been investigated. To do so, a cryogenic trap has been connected to the source for about 10 days, after which it was removed and probed for the strongest 83Rbγ-rays with an ultra-sensitive Germanium detector. No signal has been found. The corresponding upper limit on the released 83Rb activity means that the investigated type of source can be used in the XENON project and similar low-background experiments as 83mKr generator without a significant risk of contaminating the detector. The measurements also allow to set upper limits on the possible release of the isotopes 84Rb and 86Rb, traces of which were created alongside the production of 83Rb at the Rez cyclotron.",

keywords = "Detector alignment and calibration methods (lasers, sources, particle-beams), Noble-liquid detectors (scintillation, ionization two-phase)",

author = "V. Hannen and E. Aprile and F. Arneodo and L. Baudis and M. Beck and K. Bokeloh and Ferella, {A. D.} and K. Giboni and Lang, {R. F.} and O. Lebeda and Ortjohann, {H. W.} and M. Schumann and A. Spalek and D. Venos and C. Weinheimer",

note = "Funding Information: ACKNOWLEDGEMENTS Financial support from DGICYT (PB94-0577) doctoral fellowship to R. A. (DGA) are gratefully acknowledged.",

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doi = "10.1088/1748-0221/6/10/P10013",

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T1 - Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project

AU - Hannen, V.

AU - Aprile, E.

AU - Arneodo, F.

AU - Baudis, L.

AU - Beck, M.

AU - Bokeloh, K.

AU - Ferella, A. D.

AU - Giboni, K.

AU - Lang, R. F.

AU - Lebeda, O.

AU - Ortjohann, H. W.

AU - Schumann, M.

AU - Spalek, A.

AU - Venos, D.

AU - Weinheimer, C.

N1 - Funding Information: ACKNOWLEDGEMENTS Financial support from DGICYT (PB94-0577) doctoral fellowship to R. A. (DGA) are gratefully acknowledged.

PY - 2011/10

Y1 - 2011/10

N2 - The isomer 83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived mother isotope 83Rb(T = 86.2 d) has to be ruled out. In this work the release of 83Rb atoms from a 1.8 MBq 83Rb source embedded in zeolite beads has been investigated. To do so, a cryogenic trap has been connected to the source for about 10 days, after which it was removed and probed for the strongest 83Rbγ-rays with an ultra-sensitive Germanium detector. No signal has been found. The corresponding upper limit on the released 83Rb activity means that the investigated type of source can be used in the XENON project and similar low-background experiments as 83mKr generator without a significant risk of contaminating the detector. The measurements also allow to set upper limits on the possible release of the isotopes 84Rb and 86Rb, traces of which were created alongside the production of 83Rb at the Rez cyclotron.

AB - The isomer 83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived mother isotope 83Rb(T = 86.2 d) has to be ruled out. In this work the release of 83Rb atoms from a 1.8 MBq 83Rb source embedded in zeolite beads has been investigated. To do so, a cryogenic trap has been connected to the source for about 10 days, after which it was removed and probed for the strongest 83Rbγ-rays with an ultra-sensitive Germanium detector. No signal has been found. The corresponding upper limit on the released 83Rb activity means that the investigated type of source can be used in the XENON project and similar low-background experiments as 83mKr generator without a significant risk of contaminating the detector. The measurements also allow to set upper limits on the possible release of the isotopes 84Rb and 86Rb, traces of which were created alongside the production of 83Rb at the Rez cyclotron.

KW - Detector alignment and calibration methods (lasers, sources, particle-beams)

KW - Noble-liquid detectors (scintillation, ionization two-phase)

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