hnordquist / INCC6

INCC6
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Measurement time extraction in PTR32 #30

Open jflongo opened 9 years ago

jflongo commented 9 years ago

Issue by henzlova Mon Jun 15 19:15:08 2015 Originally opened as https://github.com/hnordquist/INCC6-WithHistory/issues/95


The measurement time (for 10 s measurements and 200 cps rate) shows up as ~6.9 s.

jflongo commented 9 years ago

Comment by henzlova Mon Jun 15 19:47:13 2015


With increasing rate this improves (at 315000 cps singles rate the measurement time is recorded as 9.995s).

jflongo commented 9 years ago

Comment by hnordquist Mon Jun 22 19:40:29 2015


There seems to be some arbitrary low count rate below which INCC6 does something different. I do not understand this, but can work with Joe to see what is going on.

hnordquist commented 6 years ago

This is a hardware issue, and I am not aware how to fix. The PTR has some lag in storing pulses in the register, and we don't get all the pulses. Arbitrary delay of 1 s as described by Husti does not work for us at low count rates.