Second coordinate readout in drift chambers by charge division
The drift time measurement and the charge division can be performed simultaneously on the same electrode (resistive anode) without affecting the accuracy of either measurement. It is shown that for the shortest measurement time there is an optimum value for the anode wire resistance. The signal requirement for a position uncertainty sigma less than or equal to 0.5% of the anode wire length is only 2.7 x 10/sup 6/ electron charges. The drift chamber can be operated in the linear mode and with negligible space charge effects, so that it can also be used for ..delta..E/..delta..X measurements. A simple preamplifier optimized for both the time and charge measurements using a monolithic transistor array is described.
- Research Organization:
- Brookhaven National Lab., Upton, N.Y. (USA)
- DOE Contract Number:
- EY-76-C-02-0016
- OSTI ID:
- 5188842
- Report Number(s):
- BNL-23345; CONF-771023-40; TRN: 78-006140
- Resource Relation:
- Conference: Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DRIFT CHAMBERS
READOUT SYSTEMS
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRODES
ELECTRONIC CIRCUITS
POSITION SENSITIVE DETECTORS
PREAMPLIFIERS
TRANSISTORS
WIRES
AMPLIFIERS
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
PHYSICAL PROPERTIES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
SEMICONDUCTOR DEVICES
440104* - Radiation Instrumentation- High Energy Physics Instrumentation