The solutions from ampoules A-D2 and C-D2 were then used to prepare liquid scintillation counting sources for live-timed anticoincidence
counting (LTAC) , the Triple-to-Double Coincidence Ratio (TDCR) method , and the CIEMAT-NIST (CNET) efficiency tracing method .
This serves as anticoincidence
to reject all those events producing a signal in both volumes, and it is a unique feature first introduced by the WArP programme, to effectively eliminate spurious nuclear-recoil signals, produced by neutron elastic scatterings.
The crystal was surrounded by an anticoincidence
plastic scintillator shield to reject signals from charged particles.
Since both the anticoincidence
principle and the assumptions driving the counter-examples flow from the folk conception of ordinary objects, the paradoxes threaten this conception with inconsistency.
The first line of defense is the so-called anticoincidence
detector, which is sensitive to charged particles but not gamma rays.
The passive lead shield is surrounded by scintillator panels that are used for an anticoincidence
The live-timed anticoincidence
counting (LTAC) technique provides robust primary measurements for counting [beta]-[gamma] decays.
The 2 m thick outer layer of water acts as an anticoincidence
using smaller outward facing PMTs.
A solution containing [.sup.68] Ge in equilibrium with its daughter, [.sup.68] Ga, has been standardized for the first time at the National Institute of Standards and Technology (NIST) using 3 liquid scintillation-based techniques: live-timed 4[pi] [beta]-1[lambda] anticoincidence
(LTAC) counting, the Triple-to-Double Coincidence Ratio (TDCR) method, and [.sup.3] H-standard efficiency tracing with the CIEMAT (1) /NIST (CNET) method.
between different detectors in the setup: this method relies on the fact that 0v[beta][beta] events are single site events (SSE), while large part of the background can deposit its energy in many distant locations inside one detector and also in different detectors (multisite events, MSE).