INVESTIGATION OF A GEIGER COUNTER TECHNIQUE FOR DETERMINING THE POSITION IN SPACE OF INDIVIDUAL IONIZING PARTICLES. Final Report

Technical Report · Sun Jun 30 04:00:00 EDT 1963

OSTI ID:4650065

Ely, Jr, R L; Richter, H G

The behavior of multiple anodes in a flat Geiger counter was studied. It was observed that two parallel anodes in a flat counter, operated at different voltages in the Geiger region, will exhibit the same counting-rate when each is at the same voltage but otherwise that anode with the lower voltage will exhibit the higher counting-rate. This observation can be satisfactorily explained by photo-induced discharges if one assumes that the higher the voltage on an anode, the greater is the probability that it will induce a discharge on the adjacent anode. With anodes 10 cm long spaced 2 cm the photo-induced counting-rate on an anode was about 0.2% of the counting-rate of the adjacent anode per volt above a threshold value that appeared to be 50-100 volts above the Geiger threshold. This does not appear to be a strong function of the anode spacing in the range 0.5 to 2 cm. However, another effect is observed which is more dependent upon spacing. At one cm spacing or less, the anode with the higher voltage tends to suppress the plateau of the adjacent anode, raising its threshold voltage and decreasing the plateau counting-rate. The compounded result of these two effects is a function of the spacing and the anod voltages. Several other effects are described for which there are no immediate explanations. (auth)

• Research Organization: Research Triangle Inst., Durham, N.C.
• NSA Number: NSA-17-034236
• OSTI ID: 4650065
• Report Number(s): ORO-589
• Country of Publication: United States
• Language: English

Related Subjects

ANODES
CONFIGURATION
DIAGRAMS
EFFICIENCY
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
GEIGER-MUELLER COUNTERS
INSTRUMENTS AND INSTRUMENTATION
OPERATION
PHOTONS
THRESHOLD ENERGY