Successful observation of Schottky signals at the Tevatron collider

Conference · Tue Aug 01 00:00:00 EDT 1989

OSTI ID:5521493

Goldberg, D A; Lambertson, G R

We have constructed a Schottky detector for the Tevatron collider in the form of a high-Q ({approx}5000) cavity which operates at roughly 2 GHz, well above the frequency at which the Tevatron's single-bunch frequency spectrum begins to roll off. Initial spectra obtained from the detector show clearly observable Schottky betatron lines, free of coherent contaminants; also seen are the common-mode'' longitudinal signals due to the offset of the beam from the detector center. The latter signals indicate that at 2 GHz, the coherent single-bunch spectrum from the detector is reduced by >80 dB; therefore, in normal collider operation, the Schottky betatron lines are >40 dB greater than their coherent counterparts. We describe how the data we have obtained give information on transverse and longitudinal emittances, synchrotron frequency, and betatron tunes, as well as reveal what may be previously unobserved phenomena. Space limitations restrict us to presenting only as much data as should be necessary to convince even the skeptical reader of the validity of the claim made in the paper's title. 3 refs., 2 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5521493
• Report Number(s): LBL-27664; CONF-890803-35; ON: DE90002166; TRN: 89-031375
• Resource Relation: Conference: International conference on high energy accelerators, Tsukuba (Japan), 20-26 Aug 1989
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BETATRON OSCILLATIONS
DETECTION
BEAM BUNCHING
BEAM EMITTANCE
FERMILAB TEVATRON
SCHOTTKY EFFECT
SYNCHROTRON RADIATION
ACCELERATORS
BEAM DYNAMICS
BREMSSTRAHLUNG
CYCLIC ACCELERATORS
ELECTROMAGNETIC RADIATION
OSCILLATIONS
RADIATIONS
SYNCHROTRONS
430303* - Particle Accelerators- Experimental Facilities & Equipment
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments