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P J Tetenes

Publications and source records attributed to P J Tetenes.

4 recordsLinked to original sources
PubMed1977

Comparative study of superficial whole-body radiotherapeutic techniques using a 4-MeV nonangulated electron beam.

Various whole-body, multiple-field, electron-beam therapy techniques are analyzed. Accelerator characteristics, various dosimetric techniques, and experimental setup are described. A flattening filter was constructed which produced an uncollimated electron-beam profile (4 MeV) with a uniformity of +/- 8% across a 200-cm diameter area at 7 m from the source. Irradiation techniques include 2-, 4-, 6-, and 8-field therapy and rotation. Conclusive evidence is presented to support adoption of either the 8-field technique or rotation as the methods of choice for superficial whole-body treatments.

Dose-Response Relationship, Radiation↗
PubMedDate not supplied

Filling of microelectrodes: an expedient solution.

Micropipettes of small diameter filled with an electrolyte solution have been used widely to record electrophysiological potentials. Filling micropipettes is a major problem for many researchers. We describe an expedient and reliabel method of solving this problem by using parts that can be easily found in any research laboratory. Among the most important parts are; a vacuum pump, two stands, a container, tubes and a few clamps. The filling of these micropipettes can then be easily done by using negative pressure through the fine tip. With the drop in pressure distilled water or an electrolyte is forced downward inside the pipette thus filling the electiode tip.

Electrolytes↗