Computer aided field measurements of the SUPERHILAC Alvarez cavities

Author

Howard, D. ; Fuhrman, R. ; Dwinell, R. ; Feinberg, B. ; Sorenson, R.

Author_Institution

Lawrence Berkeley Lab., California Univ., CA, USA

fYear

1989

fDate

20-23 Mar 1989

Firstpage

112

Abstract

Field measurements in the first of the six cavities that comprise the SUPERHILAC post stripper have indicated an accelerating field imbalance that is low at the entrance and high at the cavity exit. Closer inspection of this problem has revealed a displacement of the end wall drift tubes. It is believed that the sudden `letting up to air´ of the whole post stripper in the vicinity of the first of the six cavities has caused all cavity end walls to be displaced, thereby causing all cavities to have similar of mirror image field imbalances. Realignment of the cavity fields requires many repetitive field measurements. To reduce documentation errors, eliminate user interpretation of data, and speed the measuring process, a computer program is being written to control the HP 8753A Network Analyzer

Keywords

beam handling equipment; ion accelerators; linear accelerators; particle beam diagnostics; physics computing; HP 8753A Network Analyzer; SUPERHILAC Alvarez cavities; accelerating field imbalance; cavity exit; computer aided field measurements; computer program; documentation errors; end wall drift tubes; entrance; mirror image field imbalances; post stripper; repetitive field measurements; Acceleration; Assembly; Computer networks; Computerized monitoring; Flanges; Frequency measurement; Laboratories; Position measurement; Radio frequency; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/PAC.1989.73001

Filename

73001