A Geiger-mode avalanche photodiode array for X-ray photon correlation spectroscopy

I. Johnson, Z. Sadygov, O. Bunk, A. Menzel, F. Pfeiffer, D. Renker

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


X-ray photon correlation spectroscopy (XPCS) provides an opportunity to study the dynamics of systems by measuring the temporal fluctuations in a far-field diffraction pattern. A two-dimensional detector system has been developed to investigate fluctuations in the frequency range of several Hz to kHz. The X-ray detector system consists of a thin 100 m scintillation crystal coupled to a Geiger-mode avalanche photodiode array. In this article the elements of the system are detailed and the detector for XPCS measurements is demonstrated.

Original languageEnglish
Pages (from-to)105-109
Number of pages5
JournalJournal of Synchrotron Radiation
Issue number1
StatePublished - 2008
Externally publishedYes


  • Detector
  • Dynamic light scattering
  • Geiger-mode avalanche photodiode
  • Photon correlation spectroscopy
  • X-ray diffraction
  • X-ray photon correlation spectroscopy


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