2010/06/17
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| These are the modulation curves from the DCRC. Since there is no detector inside, I didn't spend time to tune the SQUID. |
Qi noise psd taken by DCRC with trace length 128ms. Used a soft hammer knocking on the Al frame to introduce microphonics while taking data.
Qi noise psd taken by DCRC with trace length 128ms. Used a soft hammer knocking on the Al frame to introduce microphonics while taking data.
Qi (regular coax) and Qo (Vacuum coax) and Soudan noise comparison. DCRC has more peaks at high and low frequencies and a frequency dependent slope.
Data
| Run | Comment |
|---|---|
| 1 | Qi noise psd from DCRC, trace length 128ms, average 100, exponential |
| 2 | Qi noise psd from DCRC, trace length 128ms, average 100, exponential, hammer knock on frame |
| 3 | Qo noise psd from DCRC, trace length 128ms, average 100, exponential |
| 4 | Qo noise psd from DCRC, trace length 128ms, average 100, exponential, hammer knock on frame |