The cylindrical type of BER + CFT has a specific configuration in which the working chamber surrounds the counter chamber, and those 2 chambers are separated by a proton exchange membrane.
The anodic counter chamber filled with 100-mM NaCl (180 mL) was installed in the center of a reactor, and a columnar carbon bar (height = 150 mm; radius = 4 mm) was used as an anodic counter electrode.
One half of the cells were stained with 0.02% Trypan blue and the percentage of dead (Trypan blue-positive) cells was assessed using a Bûrker glass counter chamber.
HT-29 and Caco-2 cells were counted using Trypan Blue solution 10%% in a Neubauer cell counter chamber (Brand, Wertheim, Germany) and observing viable (nonstained) and nonviable (stained) cells under a microscope [ 37].
For EVPE, we additionally assessed radioactivity of both 100 μl whole blood and the whole lung immersed in 1 ml of water before homogenization in a γ-counter chamber (Perkin Elmer, Waltham, MA).
A custom flow cell containing fluidic connections and counter electrode chamber was also constructed to integrate the sensor and to create an electrolysis chamber with a fixed volume.
A lot of people will have to be trained to read Geiger counters, ionization chambers and other detection instruments.
A further annealing of 15 min was carried out to stabilize the As counter pressure the chamber background pressure rised from 2 × 10−8 mbar to 1.5 × 10−6 mbar (corresponding to a BEP of 2 × 10−5 mbar stabilizing a rate of ca. 0.4 ML/s for our machine).
The electronic detectors used by the logic tradition, such as geiger counters, scintillation counters, and spark chambers, provide less detailed information about individual events, but detect more events.
In particle physics, for example, there is the tradition of visual detectors, such as the cloud chamber or the bubble chamber, in contrast to the electronic tradition of Geiger and scintillation counters and spark chambers.
