New ideas for two dimensional position sensitive silicon drift detectors

Conference · Mon Aug 01 04:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6884237

Hijzen, E A; Schooneveld, E M; Eijk, C W.E. van; Hollander, R W; Sarro, P M; Bogaard, A van den ^[1]

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1. Delft Univ. of Technology (Netherlands)

In this paper the authors present two new ideas for drift detectors with two dimensional position resolution. The first idea is based on the regular drift detector, but has a slightly different design in order to deal with diffusion problems. The second idea embodies a completely new type of drift detector that uses drift time measurements for both dimensions. The design consists of concentric quadrilateral closed strips with a small collecting anode in the center. At first electrons travel perpendicular to the strips until they reach a diagonal. Then they proceed along this diagonal until they are collected at the centre. Position resolution in two dimensions can be obtained when both the time the electrons need to reach the diagonal and the time they need to reach the centre are measured. The latter is obtained from the collecting anode, the former form a diagonal strip present at the back side of the detector. Compared to common 2D drift detectors this detector offers the advantage of a small amount of read out electronics. It also has the advantage of having just one small collecting anode with a very low capacitance, resulting in low noise and therefore in a good energy resolution.

• OSTI ID: 6884237
• Report Number(s): CONF-931051--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:4Pt1
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DESIGN
DRIFT CHAMBERS
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
POSITION SENSITIVE DETECTORS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
READOUT SYSTEMS
RESOLUTION
SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
SPATIAL RESOLUTION