Table of Contents
Enriched Xenon Observatory for Double Beta Decay
The standard exclusion diagram
Experimental Knowledge of Neutrinos
Some questions bearing on particle physics
and others on coslmology
Majorana neutrinos violate L conservation
Why are neutrino masses so small?
And what about cosmology
How large are neutrino masses?
Recent theoretical papers claim 0.01 < m < 1ev
Kinematic mass measurements
DBD makes most sensitive mass measurement
DBD is a second order weak process
DBD energy spectra
DBD candidate nuclei with QɮMeV
Best materials are those that can be used as detector medium
What is needed to reach 10-100 meV
Background is enemy number one
Xe TPC suppresses backgrounds using topology and energy
EXO predecessor photo
Xe is new tool against background
Requirements for new generation DBD detector
Requirements for new generation DBD detector
Schematic drawing of EXO detector
Baseline design 5-20 atm & 10 ton mass
EXO Features
Single ion Ba+ spectroscopy in high pressure Xe
How to get answers
Stanford’s Ba+ ion trap
Stanford’s Ba+ ion trap
IBM/Stanford Ba+ ion trap
Exploring different gas additives
Readout plane R&D
Other detector configurations
SLAC liquid/solid Xe cell
SLAC liquid/solid Xe cell
SLAC liquid/solid Xe cell
Schematic of SLAC liquid/solid Xe cell
Hybrid Fireplace configuration has many advantages
It also has problems
Detector simulation and backgrounds
Sampling radioactivity at WIPP
The meV region is within reach!
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