A logarithmic detection system suitable for a 4π array

doi:10.1016/0168-9002(85)90472-3

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 238, Issues 2–3, 1 August 1985, Pages 347-353

https://doi.org/10.1016/0168-9002(85)90472-3 Get rights and content

Abstract

A low pressure multiwire proportional counter, a Bragg curve counter, and an array of CaF₂/plastic scintillator telescopes have been developed in a geometry suitable for close packing into a 4π detector designed to study nucleus-nucleus reactions at 100–200 MeV/nucleon. The multiwire counter is hexagonal in shape and gives X−Y position information using resistive charge division from nichrome-coated stretched polypropylene foils. The Bragg curve counter is a hexagonal pyramid with the charge taken from a Frisch gridded anode. A field shaping grid gives the Bragg curve counter a radial field. The scintillator telescopes are shaped as truncated triangular pyramids such that when stacked together they form a truncated hexagonal pyramid. The light signal of the CaF₂-plastic combination is read with one phototube using a phoswich technique to separate the ΔE signal from the E signal. The entire system has been tested so far for particles with 1 ≦ Z ≦ 18 and gives good position, charge, and time resolution.

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Citation Excerpt :
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A logarithmic detection system suitable for a 4π array

Abstract

Phys. Lett.

Phys. Lett.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Phys.

Nucl. Instr. and Meth.

IEEE Trans. Nucl. Sci. NS-27

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.