6533b828fe1ef96bd128892a

RESEARCH PRODUCT

Design and development of a continuous wave functional near infrared spectroscopy system

D AgròR CanicattìM PintoA TomasinoL CurcioN GaliotoGabriele AdamoAntonino ParisiSalvatore StivalaGiuseppe Costantino GiaconiaAlessandro Busacca

subject

embedded systemFunctional Near Infrared SpectroscopySettore ING-INF/02 - Campi ElettromagneticiphotodetectorSettore ING-INF/01 - ElettronicaSilicon PhotoMultiplier

description

Functional Near InfraRed Spectroscopy uses light sources and optical detectors for human brain monitoring. In this paper, a portable, low cost, battery-operated, multi-channel, continuous wave fNIRS embedded system, hosting up to 64 LED sources and 128 Silicon PhotoMultiplier optical detectors, is reported on. The designed system is based on a scalable architecture, in which each probe consists of 8 modular and flexible stands, able to host 4 bi-color LEDs as light sources, 16 silicon photomultipliers as photodetectors and a temperature sensor. The hardware structure allows to easily set up several relevant parameters: the timing of the LEDs, the optical power emitted by the LEDs; the acquisition of the photodetectors, the bias voltage of each SiPM; the portion of cerebral cortex that has to be analyzed by programming the suitable source photodetector couples that will be involved in the measurement. Several preliminary functional tests were successfully carried out, thus achieving very encouraging results.

yearjournalcountryeditionlanguage
2014-01-01
http://hdl.handle.net/10447/98090