Nonintercepting emittance monitor

Technical Report · Mon Aug 01 00:00:00 EDT 1983

DOI:https://doi.org/10.2172/5746569· OSTI ID:5746569

Miller, R H; Clendenin, J E; James, M B; Sheppard, J C

A nonintercepting emittance monitor is a helpful device for measuring and improving particle beams in accelerators and storage rings as it allows continuous monitoring of the beam's distribution in phase space, and perhaps closed loop computer control of the distributions. Stripline position monitors are being investigated for use as nonintercepting emittance monitors for a beam focused by a FODO array in the first 100 meters of our linear accelerator. The technique described here uses the signal from the four stripline probes of a single position monitor to measure the quadrupole mode of the wall current in the beam pipe. This current is a function of the quadrupole moment of the beam, sigma/sup 2//sub x/ - sigma/sup 2//sub y/. In general, six independent measurements of the quadrupole moment are necessary to determine the beam emittance. This technique is dependent on the characteristically large variations of sigma/sup 2//sub x/ - sigma/sup 2//sub y/ in a FODO array. It will not work in a focusing system where the beam is round at each focusing element.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5746569
• Report Number(s): SLAC-PUB-3186; CONF-830822-39; ON: DE84001924
• Resource Relation: Conference: 12. international conference on high energy accelerators, Batavia, IL, USA, 11 Aug 1983; Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM EMITTANCE
BEAM MONITORS
BEAM POSITION
PHASE SPACE
SENSITIVITY
STANFORD LINEAR COLLIDER
THEORETICAL DATA
ACCELERATOR FACILITIES
ACCELERATORS
DATA
INFORMATION
LINEAR ACCELERATORS
MATHEMATICAL SPACE
MEASURING INSTRUMENTS
MONITORS
NUMERICAL DATA
SPACE
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics