Title :
A beam-profile monitor for the BNL Accelerator Test Facility (ATF)
Author :
Russell, D.P. ; McDonald, K.T.
Author_Institution :
Joseph Henry Lab., Princeton Univ., NJ, USA
Abstract :
A beam-profile monitor has been designed to diagnose the 5 MeV, high-brightness electron beam from the RF gun of the BNL (Brookhaven National Laboratory) Accelerator Test Facility (ATF). The monitor consists of a phosphor screen viewed by a CCD (charge coupled device) camera. The video images are digitized and stored by a frame grabber, and analyzed on an IBM PC-AT to extract the emittance. Details of the hardware configuration are presented, along with the spatial resolution of the system measured as a function of phosphor-screen thickness. The strategies which will be used to measure the transverse and longitudinal emittances are briefly mentioned. The system should be capable of measuring a transverse geometric emittance of around 1 mm-mrad, as will be typical of the ATF beam
Keywords :
CCD image sensors; electron accelerators; linear accelerators; microcomputer applications; particle beam diagnostics; phosphors; physics computing; 5 MeV; ATF; BNL Accelerator Test Facility; CCD camera; IBM PC-AT; RF gun; beam-profile monitor; charge coupled device; frame grabber; hardware configuration; high-brightness electron beam; longitudinal emittances; phosphor screen; spatial resolution; transverse geometric emittance; video images; Charge coupled devices; Charge-coupled image sensors; Electron accelerators; Electron beams; Laboratories; Life estimation; Monitoring; Phosphors; Radio frequency; Test facilities;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73496
