Randolph Frank Wojcik

Title: Innovations of Randolph Frank Wojcik

Introduction

Randolph Frank Wojcik is a notable inventor based in Yorktown, VA (US). He holds a total of 8 patents that showcase his contributions to the field of technology and engineering. His work primarily focuses on advancements in imaging detectors and particle beam technology.

Latest Patents

One of his latest patents is the "Linear beam raster magnet driver based on H-bridge technique." This invention presents an improved raster magnet driver for a linear particle beam, utilizing an H-bridge technique. The design incorporates four branches of power HEXFETs that form a two-by-two switch. By switching the HEXFETs in a predetermined order and at the right frequency, a triangular current waveform is produced. The H-bridge controller manages the switching sequence and timing, allowing the magnetic field of the coil to follow the waveform shape. This innovation results in a highly uniform raster density distribution, eliminates target heating from non-uniform distributions, and enhances beam current levels.

Another significant patent is the "Fractional substraction resistive readout for position sensitive photo-multiplier tubes." This readout circuit enhances resolution and increases the field of view in imaging detectors compared to traditional circuits. It consists of two or more amplifiers that receive outputs from the imaging detector. The subtraction circuitry determines a fractional value of the sum of the signals and subtracts this value from each signal, producing both positive and negative outputs. A rail-to-rail amplifier operating from a single voltage supply converts the signals to unipolar, which are then combined to generate two outputs for computer display.

Career Highlights

Wojcik has worked with organizations such as Southeastern University Research Association, Inc. and Southeastern University Research Association, Inc. His career reflects a commitment to advancing technology through innovative solutions.

Collaborations

Some of his notable coworkers include Stanislaw Majewski and Carl J Zorn. Their collaborative efforts have contributed to the success of various projects and patents.

Conclusion

Randolph Frank Wojcik's contributions to technology through his patents demonstrate his innovative spirit and dedication to improving engineering solutions. His work continues to influence advancements in imaging and particle beam technologies.