Design considerations for the next-generation MAPMT-based monolithic scintillation camera

Esen Salçin; H. Bradford Barber; Lars R. Furenlid

doi:10.1117/12.899478

15 September 2011 Design considerations for the next-generation MAPMT-based monolithic scintillation camera

Esen Salçin, H. Bradford Barber, Lars R. Furenlid

Proceedings Volume 8143, Medical Applications of Radiation Detectors; 81430Q (2011) https://doi.org/10.1117/12.899478
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

Multi-anode photomultiplier tubes (MAPMTs) offer high spatial resolution with their small size anodes that may range from 64 to 1024 in number per tube. In order to increase detector size, MAPMT modules can be arranged in arrays and combined in a single modular scintillation camera. However, then the large number of channels that require amplification and digitization become practically not feasible unless signals are combined or reduced in some manner. Conventional approaches use resistive charge division readouts with a centroid algorithm (or a variant of it) for simplicity in the electronic circuitry implementation and fast execution. However, coupling signals from many anodes may cause significant information loss and limit achievable resolution. In this study, a new approach for optimizing readout-electronics design for MAPMTs based on an analysis of information content in the signals is presented. An adaptive read-out scheme to be used with maximum-likelihood estimation methods is proposed. This scheme achieves precision in estimating event parameters that is close to what is achieved by retaining all signals.

Citation Download Citation

Esen Salçin, H. Bradford Barber, and Lars R. Furenlid "Design considerations for the next-generation MAPMT-based monolithic scintillation camera", Proc. SPIE 8143, Medical Applications of Radiation Detectors, 81430Q (15 September 2011); https://doi.org/10.1117/12.899478

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available