Masayori Ishikawa

Title: Masayori Ishikawa: Innovator in Scintillation Detection Technology

Introduction

Masayori Ishikawa is a prominent inventor based in Sapporo, Japan. He has made significant contributions to the field of scintillation detection technology, holding a total of 8 patents. His work focuses on improving the accuracy and efficiency of radiation detection systems.

Latest Patents

Ishikawa's latest patents include the LABR3 scintillation detector and a specific event removal method. This invention identifies alpha decay and other events included in the emission of an LaBr3 scintillator, collecting only gamma ray events. The LaBr3 scintillation detector is equipped with an LaBr3 scintillator, a photomultiplier tube, an oscilloscope, and a computer. The computer detects a peak value (Vp) and a total charge amount (Q) of a voltage waveform signal, calculating an error propagation expression function for the ratio of the peak value to the total charge amount. This function serves as a threshold for identifying and removing alpha decay events in real time.

Another notable patent is the scintillation light detecting device and radiation detecting device. This device distinguishes between signals from scintillator elements within a scintillator array, where the elements have different decay time constants for emitted light. A photomultiplier tube converts the light output into an electrical signal, while an arithmetic processing device detects the peak value and integrated charge quantity in the voltage waveform. This allows for the identification of the scintillator element responsible for the electrical signal based on the ratio between the detected peak value and integrated electric charge quantity.

Career Highlights

Masayori Ishikawa has worked with esteemed organizations such as Hokkaido University and Hitachi, Ltd. His experience in these institutions has greatly influenced his research and development in scintillation detection technologies.

Collaborations

Ishikawa has collaborated with notable colleagues, including Ryo Ogawara and Mitsuhiro Yoshida. Their joint efforts have contributed to advancements in the field of radiation detection.

Conclusion

Masayori Ishikawa's innovative work in scintillation detection technology has led to significant advancements in the field. His patents reflect a commitment to improving radiation detection systems, making a lasting impact on the industry.