New and improved phoswich detectors manufactured by a heat press technique

doi:10.1016/0168-9002(90)91322-3

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

Volume 297, Issue 3, 10 December 1990, Pages 404-409

https://doi.org/10.1016/0168-9002(90)91322-3 Get rights and content

Abstract

A technique has been developed to produce plastic scintillator phoswich detectors with large areas, thin ΔE layers with thickness uniformity better than 3%, and no “dead” layer between the ΔE and E scintillators. A good signal separation for hydrogen isotopes and for elements with Z = 1 to 11 has been demonstrated in two different tests with a ΔE layer as thin as 0.7 mm. The elemental resolution most probably extends beyond Z = 11. The light-particle energy threshold of such a phoswich detector is only 7.5 MeV/u, ideal for reaction studies in the 10–40 MeV/u energy range available at the TASCC (Tandem Accelerator and SuperConducting Cyclotron) facility at Chalk River Nuclear Laboratories.

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Citation Excerpt :
The pump-down procedure is fundamental in order to avoid the trapping of air (or gas) bubbles between the two amalgamating surfaces. The value of the softening temperature was somewhat critical and differs significantly from what is reported in Ref. [24]. The difference can be ascribed neither to a poor temperature inhomogeneity, nor to a systematic error in the temperature measurement of our setup.
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^∗: Present address: Foster Radiation Laboratory, McGill University, Montreal, Quebec, Canada H3A 2B2 and Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA.

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Instruments and methods for nuclear spectroscopyNew and improved phoswich detectors manufactured by a heat press technique

Abstract

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Instruments and methods for nuclear spectroscopy
New and improved phoswich detectors manufactured by a heat press technique