The high-resolution well-type ultra-low-background HPGe detector for low counting rate
applications shall be operated in a laboratory for radionuclide metrology located 225 metres underground in order to reduce the background contribution from cosmic rays by a factor of 5000.
The measurement of this amplitude is an asymmetry in the counting rate
of neutrons polarized with and against the direction of the T-violating field.
You can get a number for the average rate over many years, but if you want to get time variations or correlations with sunspots or anything else, you need a much higher counting rate
With their unique combination of high counting rate
capability and superb energy resolution, these detectors are now widely acknowledged as the new gold standard for EDS.
1) and (2) we see that the ratio of proton counting rate
to alpha counting rate
We have married two powerful new technologies: our compact, high-intensity Turbo-X-ray Source delivers up to an order of magnitude more flux than conventional tubes while our breakthrough MikroGap detector technology features unprecedented quantum efficiency and counting rate
Overall this process takes about 500 s and the counting rate
is shown on a logarithmic scale on the left side of Fig.
We expect that the counting rate
of neutron [beta]-decay event (in coincidence) will be about 110 [s.
0] up to a maximum of 900 V with the same statistical error at each point corresponding to about 1% at the highest counting rate
The coincidence counting rate
for these double coincidences came to about 0.
The experimental counting rate
asymmetry is given by [epsilon] = [P.
If only the colliding neutrons contribute to the detector counting rate
, and if the parameters of the neutron field are determined and the geometry is known, then the detector counts (integrated over the thermal neutron part of the TOF spectrum), measure the nn-scattering cross section.