On 3/18/2017 3:13 AM, Magnus Danielson wrote:
The NIST-7 was a optically pumped cesium beam, and a pre-cursor to the fountain clocks. There should be a bunch of papers on it.
I am however somewhat wondering about if we will see this coming out of Oscilloquartz. We will see.
NIST-7 has a reversible beam, which cancels out end to end phase error in the CBT. That works in terms of being a frequency standard, but not for a clock, because you don't have continuous operation. NIST-7 is also much longer than the 5071A or the Oscilloquartz offering. So they are not really comparable beyond sharing optical pumping. Rick _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.