1. United Nuclear Digital Geiger Counter (measures 0-999 micro-rems/hour)
2. Cs-137 and Na-22 laminate disk sources (1 microcurie each - Spectrum Techniques)
3. Tesla coil at 50 kV with + and - terminals attached to two parallel plates (6" x 6") spaced 17" apart.

The apparatus supplies an electric field (50 KV) between two square (6" x 6") plates and a Cs-137 gamma source is placed on one side of the plates. A digital Geiger counter on the other side of the plates measures the counts from the radiation source. The gamma rays have to pass through the electric field to get the counter, and they do so at a 10 degree angle incident to the electric field vector (- see Figure 1). In it's measurement position on one side of the high-voltage plates, the Geiger counter shows a background radiation (no source present) of 18 counts.

Next, the Na-22 source (in microcurie level and with gamma ray emission at 512 KeV - the compton wavelength of the electron) is placed on the other side of the electric-field plates, facing the Geiger counter so their path to the counter is intersecting the field vector at a 10 degree angle. With the electric field off, the counter reads 30 counts after 40 second averaging of measurements. When the electric field is switched on, the Geiger counter shows a decrease in gamma count from 30 to 24 counts (20% decrease) and increases about 4 to 6 counts when the field is turned off ( approximately 20% increase).

This test was performed 7 times in the same position with the radiation source and counter giving essentially the same results (although the nominal count with radiation present and no e-field is around 24 counts nominally instead of 30 counts, it shows the same increase/decrease relationship with the electric field). In one time out of the seven tries the field did not change appreciably when the e-field was switched on/off, and this may be due to the timing of when the field was turned on/off with respect to the 40 second measurement. The Geiger counter was shielded with a metal plate to reduce the effects of the E-field on the Geiger-Muller tube.

If the theory is correct, the e-field is really the effect of matter waves at the Compton frequency of the electron (1.25 x 10^20 Hz) which is the same frequency of gamma emission from the Cs-137 and Na-22 sources (corresponds to 512 KeV). When the counter starts out it takes an instantaneous measurement and then it switches to averaging mode and the measurement that is averaged is always less than the instantaneous measurement. The radiation source is added in it's designated location and the counter is turned on.

The count follows the e-field inversely when the radiation is present and when no radiation source is present the e-field works to increase the count value (it causes false activity). The counter never goes down in count with just the e-field present - it only does this when the gamma signal is passing through the electric field to the counter. This agrees with the theory that the E-field is attenuating the radiation source.

1. Wolff, Milo. "Exploring the Physics of the Unknown Universe.", Technotran Press, pp. 179-187, Copyright 1990