James G Hagerman

Title: Innovations of James G. Hagerman in Mass Spectrometry

Introduction

James G. Hagerman is an accomplished inventor based in Honolulu, HI (US). He has made significant contributions to the field of mass spectrometry, particularly with his innovative designs that enhance the functionality and efficiency of ion mass spectrometers. His work is characterized by a focus on improving the precision and accuracy of mass spectrometric measurements.

Latest Patents

Hagerman holds a patent for the "Hyperbolic horn helical mass spectrometer." This invention presents an improved rotating electric field ion mass spectrometer (REFIMS) that allows for a smooth transition of the input ion beam from zero rotation to the desired level of field rotation. The design features a horn shape that changes the grid shape from a fixed-diameter tunnel to a more efficient configuration. The horn's flare end reduces the grid electric field strength to near zero, preventing abrupt deflection of the beam at the entrance. The design tapers along the longitudinal z-axis, gradually increasing the field strength until the correct level is achieved at the exit end. This innovative approach allows for a 2D spectral readout, where ions are imaged on the target plane at radial positions that increase linearly with decreasing atomic mass units (amu).

Career Highlights

James G. Hagerman is associated with Pacific Environmental Technologies, LLC, where he applies his expertise in mass spectrometry to develop advanced analytical techniques. His work has been instrumental in enhancing the capabilities of mass spectrometers, making them more effective for various applications in environmental and analytical chemistry.

Conclusion

James G. Hagerman's contributions to mass spectrometry through his innovative patent demonstrate his commitment to advancing scientific instrumentation. His work continues to influence the field, providing valuable tools for researchers and professionals alike.