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The spectral resolution of high temperature GaAs photon counting soft X-ray photodiodes

journal contribution
posted on 2023-06-08, 16:18 authored by Anna BarnettAnna Barnett, J E Lees, D J Bassford, J S Ng, C H Tan, N Babazadeh, R B Gomes
Circular mesa GaAs p+–i–n+ diodes for photon counting soft X-ray spectroscopy have been fabricated and characterised over a temperature range of +80 to –30 °C. The spectroscopic performance of the diodes, as measured by the FWHM of the Mn Ka X-ray line from an 55Fe radioisotope, is reported. In addition, we compare the GaAs diodes with previously fabricated and characterised Al0.8Ga0.2As p+–i–n+ diodes of similar geometry.

History

Publication status

  • Published

Journal

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

ISSN

0168-9002

Publisher

Elsevier

Issue

1

Volume

654

Page range

336-339

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2013-11-18

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