Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Characterization of MRI-compatible PET detector modules by optical excitation of the scintillator material

[+] Author Affiliations
Balázs Játékos, Zoltán Kolozsi, Emoke Lorincz, Ferenc Ujhelyi, Attila Barócsi, Gábor Erdei

Budapest Univ. of Technology and Economics (Hungary)

Proc. SPIE 8439, Optical Sensing and Detection II, 84391R (April 23, 2012); doi:10.1117/12.922618
Text Size: A A A
From Conference Volume 8439

  • Optical Sensing and Detection II
  • Francis Berghmans; Anna G. Mignani; Piet De Moor
  • Brussels, Belgium | April 16, 2012

abstract

In the field of biomedical imaging there is a strong interest in combining modalities of positron emission tomography (PET) and magnetic resonance imaging (MRI). An MRI-compatible PET detector module has to be insensitive to the magnetic field that is why it needs to incorporate avalanche photodiodes (APD) or silicon photomultipliers (SiPM). We propose a new purely optical characterization method for these devices where no nuclear source is needed. In our method we use LED sources for both the direct illumination of silicon sensors and fluorescent excitation of the scintillator material. With this method we can measure the response characteristic and uniformity of pixels in sensor arrays as well as the optical cross-talk between neighboring pixels. In the same experimental setup we can also emulate the pulse response of the detector module (i.e. light-spread over the sensor array from a point source in the scintillator material). We present the detailed construction of the experimental setup and analyze the benefits and drawbacks of this method compared to the nuclear measurements. The viability of the idea is proven through the characterization of a SiPM array and a block detector module based on it.

© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Balázs Játékos ; Zoltán Kolozsi ; Emoke Lorincz ; Ferenc Ujhelyi ; Attila Barócsi, et al.
"Characterization of MRI-compatible PET detector modules by optical excitation of the scintillator material", Proc. SPIE 8439, Optical Sensing and Detection II, 84391R (April 23, 2012); doi:10.1117/12.922618; http://dx.doi.org/10.1117/12.922618


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.