Conveners
W2-7 Instrumentation II (DNP) / Instrumentation II (DPN)
- Jeffery Martin (The University of Winnipeg)
The proposed nEXO experiment is searching for neutrinoless double beta decay (0νββ) in 136-Xe in a tonne-scale liquid xenon time-projection chamber (TPC). If observed, 0νββ will reveal the Majorana nature of neutrinos and violation of lepton number conservation. Searches for such extremely rare events require excellent background suppression and rejection methods to achieve high sensitivities....
The TUCAN collaboration is preparing to make a precision measurement of the neutron's permanent electric dipole moment, $d_n$, with a sensitivity of $\sigma(d_n)\leq10^{-27}e\cdot cm$. To reach the goal sensitivity it is required to have highly uniform and well understood magnetic fields in the measurement cells. With ambient magnetic fields on order of hundreds of $\mu \rm T$, passive...
I will discuss two time-dependent models of systems relevant to the cryogenic function of TRIUMF Ultra-Cold Advanced Neutron (TUCAN) source. The first is a natural circulation system (thermosyphon) which cools the LD$_2$ moderator. The moderator experiences a heat load of 60~W for the design proton beam current of 40~$\mu$A, and is cooled to 20~K using a distant cryocooler at higher...
Low-energy precision tests of electro-weak physics keep playing an essential role in the search for new physics beyond the Standard Model. Atomic parity violation (APV) experiments measure the strength of highly forbidden atomic transitions induced by the parity violating (PV) exchange of Z bosons between electrons and quarks in heavy atoms. APV is also sensitive to additional interactions...
