Fast lifetime measurements of stored e/sup +//e/sup -/ single bunches in PETRA and DORIS II utilizing the ac-signals of simple beam current transformers

Conference · Mon Aug 01 00:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5274706

Radloff, W; Kriens, W

A monitor for fast lifetime measurements has been developed and successfully tested. The monitor pick-up consists of a standard broadband transformer device in a ring position with equidistant bunch spacing. It has an upper cut-off frequency of about 4 MHz which allows to measure simultaneously the lifetimes of up to 8 individual bunches in PETRA (2 in DORIS II). In the electronic section the ac-signals are separated, baseline-restored, stretched and finally digitized in a highly stable 16 bit ad-converter. The output data are fed then into a microprocessor that computes the average currents and their time derivatives. As a result lifetimes of up to 5X10/sup 4/ s can be measured in less than 2 seconds. Some measurements are reported.

• Research Organization: Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85 D-2000, Hamburg 52
• OSTI ID: 5274706
• Report Number(s): CONF-830311-; TRN: 84-005749
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4; Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM MONITORS
DESIGN
PERFORMANCE TESTING
DORIS STORAGE RING
PETRA STORAGE RING
ANALOG-TO-DIGITAL CONVERTERS
BEAM BUNCHING
ELECTRON BEAMS
EVALUATED DATA
LIFETIME
MEASURING METHODS
MICROPROCESSORS
BEAM DYNAMICS
BEAMS
COMPUTERS
DATA
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
INFORMATION
LEPTON BEAMS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MONITORS
NUMERICAL DATA
PARTICLE BEAMS
STORAGE RINGS
TESTING
430400* - Particle Accelerators- Storage Rings