[time-nuts] Gamma-ray and jitter
Richard Karlquist
richard at karlquist.com
Sun Nov 14 05:08:36 UTC 2010
FWIW, you will notice that there is a high value resistor shunting
the crystal in the 10811. The reason for this is to drain off DC charge
caused
by cosmic rays hitting the crystal, according to the designers.
Rick Karlquist
N6RK
On Sat 13/11/10 2:48 PM , "iovane at inwind.it" wrote:
In the very recent days it has been discovered a previously unknown
feature of our galaxy, that is the presence of two giant bubbles
which appear to be gamma-ray sources.
See
http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html
[1]">http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html
After reading this, I have revieved some old data of mine, which shoved
that the noise in a long term temperature measurement is higher when my
observing site is in view of that structure. Now I'm rather
convinced that there could be a correlation between my observations and
the above mentioned new findings, and I believe that the noise is
generated by the measuring setup in response to something
linked to the bubbles.
Hence I'm wondering if that stimulus could also affect the jitter in
high performance oscillators.
More precisely, I would ask time-nuts whether any sidereal periodicities
have ever been noticed in jitter measurements.
Thanks,
Antonio I8IOV
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