Re: [buildcheapeeg] photomultiplier eeg

From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2001-08-07 21:58:05

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Hi,

----- Original Message -----
From: <rodentius_at_y...>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Tuesday, August 07, 2001 9:13 AM
Subject: [buildcheapeeg] photomultiplier eeg

> Unlimited Underground Electronics sells plans for a cheap eeg-type
> device that uses photomultiplier tubes.

AFAIK photomultipliers detect photons by cascading
them in the tube with multiple cathods and high voltage.

How can such a photo-detector be used for EEG ?

What about the high voltage and test subject safety ?

Regards,

Joerg

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