Master's Thesis

Online high voltage control system for Time of Flight counter at PHENIX experiment

Kunio Koseki

Acknowledgements

I would like to express my gratitude to Professor Kohsuke Yagi for giving me the opportunity to study in this field.

I am much obliged to professor Yasuo Miake for his advice and continuous support as a group leader of the Time of Flight system.

I express my deep appreciation to Dr. Johnny Tang at NSLS-BNL for his kind and proper help with using his wide and deep knowledge about EPICS although he had completely nothing to do with our PHENIX collaboration.

I am wordless in front of Mr. George Vasileiadis and Mr. Carl Lionberger as the collaboration of the BABAR experiment at LBNL for their useful and kind advise over hundreds of e-mails and phone calls.

I also thank to Martin Purschke at Brookhaven National Laboratory for his kindly telling me about VME formula and evaluating our control system.

Dr. Mizuki Nishimura at RIKEN had advised me to work on this development of online high voltage control system for time of flight counter.

Dr Shunji Nishimura at University of Tokyo kindly helped me until midnight when I was debugging our control system although he had to go very early morning for his workshop.

Mr. Takeshi Kohama at University of Hiroshima kindly told me about the development of C program from the beginning. I also appreciate his taking care of my life at BNL.

Dr. Hiroaki Ohnishi at BNL kindly took care of me and gave much advise to me for my study at BNL.

Mr. Susumu Sato at University of Tsukuba kindly support my activity at BNL patiently and gave much advise from his knowledge about C.A.E.N. high voltage system.

Without kindness, support and friendship from Taichi Hirano at University of Tsukuba, I am sure that I could not complete this development of control system.

I also appreciate kindness and support from following individuals.

Dr. Kenta Shigaki at University of Tokyo, Dr. Hideki Hamagaki at University of Tokyo, Dr. Masashi Kaneta at Brookhaven National Laboratory, Mr. Susumu Yoshida at KEK, Dr. Noboru Yamamoto at KEK, Dr. Julia Velkovska at SUNY, Stony brook, Dr. John Haggerty at Brookhaven National Laboratory, Dr. Ed Desmond at Brookhaven National Laboratory, Dr. Lars Ewell at Brookhaven National Laboratory, Mr. Ryan Roth at Brookhaven National Laboratory, Ms. Miwako Suzuki at University of Tsukuba, Mr. Tatsuya Chujo at University of Tsukuba