52 research outputs found
Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project
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 isotop 83Rb (86.2 d half-life) 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 83Rb
gamma-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.Comment: 11 pages, 7 figures, submitted to Journal of Instrumentatio
Hochsensitive Erfassung von Nukleinsaeuren durch Biosensoren in biologischen Praeparaten. Teilprojekt: Immobilisierung von Nukleasevarianten Schlussbericht
SIGLEAvailable from TIB Hannover: DtF QN1(95,50) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman
Prozesse und Equipment fuer 300 mm-Wafer. Prozesschemikalien fuer 300 mm Technologie Abschlussbericht
SIGLEAvailable from TIB Hannover: F03B631+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman
EUREKA-Projekt EUROQUIP Abschlussbericht
Available from TIB Hannover: DtF QN1(93,25) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); European Union (Euro), Brussels (Belgium)DEGerman
Onsite Gase und Chemikalien (MEDEA T612) Abschlussbericht
SIGLEAvailable from TIB Hannover: DtF QN1(103,14) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman
Die Nutzung hepatischer Funktionen fuer in vitro-Verfahren zur Pruefung von Stoffen mit dem Ziel der Einsparung von Tierversuchen. Teilprojekt 16: Standardisierung und Weiterentwicklung von in vitro-Metabolisierungssystemen mit kryokonservierten Hepatozyten des Beagle-Hundes Abschlussbericht
Available from TIB Hannover: DtF QN1(68,33) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman
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