Optimisation of wedge and strip anodes

Conference · Fri Feb 01 04:00:00 EST 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6066244

Schwarz, H E; Lapington, J S

We describe the Wedge and Strip Anode (WSA) position read-out system and compare the performance of currently used WSAs with that of Resistive Disk Anodes (RDAs). We show that for small systems the WSA can outperform the RDA while for larger systems the RDA cannot be used at all due to size limitations. We discuss noise in WSAs and present a comprehensive optimisation scheme based on a model for the WSA cap'Citance which is capable of reducing the electronic noise by a factor of up to 6 compared with current WSAs. We present capacitance, noise and position resolution measurements of several WSAs with active diameters of up to 200mm. We describe a simple technique for the manufacture of WSAs and use this to produce WSAs on thin metallised polymer films as an alternative noise reduction method. We discuss a special low noise application of WSAs to spectroscopy. The conclusion is reached that in most cases RDAs can be advantageously replaced by WSAs.

• Research Organization: Mullard Space Science Lab., Univ. College London, Dorking, Surrey
• OSTI ID: 6066244
• Report Number(s): CONF-841007-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:1
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANODES
CAPACITANCE
CHARGE-COUPLED DEVICES
ELECTRICAL PROPERTIES
ELECTRODES
GEOMETRY
MATHEMATICS
MEASURING INSTRUMENTS
NOISE
PHYSICAL PROPERTIES
POSITION SENSITIVE DETECTORS
RADIATION DETECTORS
READOUT SYSTEMS
RESOLUTION
SEMICONDUCTOR DEVICES
SPATIAL RESOLUTION