Development of nanometer resolution C-Band radio frequency beam position monitors in the Final Focus Test Beam
- Stanford Univ., CA (US). Stanford Linear Accelerator Center
- National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan)
Using a 47 GeV electron beam, the Final Focus Test Beam (FFTB) produces vertical spot sizes around 70 nm. These small beam sizes introduce an excellent opportunity to develop and test high resolution Radio Frequency Beam Position Monitors (RF-BPMs). These BPMs are designed to measure pulse to pulse beam motion (jitter) at a theoretical resolution of approximately 1 nm. The beam induces a TM{sub 110} mode with an amplitude linearly proportional to its charge and displacement from the BPM's (cylindrical cavity) axis. The C-band (5,712 MHz) TM{sub 110} signal is processed and converted into beam position for use by the Stanford Linear Collider (SLC) control system. Presented are the experimental procedures, acquisition, and analysis of data demonstrating resolution of jitter near 25 nm. With the design of future e{sup +}e{sup -} linear colliders requiring spot sizes close to 3 nm, understanding and developing RF-BPMs will be essential in resolving and controlling jitter.
- Research Organization:
- Stanford Univ., Stanford Linear Accelerator Center, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 674785
- Report Number(s):
- SLAC-PUB-7921; CONF-980827-; ON: DE98059269; TRN: US200305%%544
- Resource Relation:
- Conference: 19. international linac conference, Chicago, IL (US), 08/23/1998--08/28/1998; Other Information: Supercedes report DE98059269; PBD: Aug 1998; PBD: 1 Aug 1998
- Country of Publication:
- United States
- Language:
- English
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