Campuses:
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| imagerteleconnotes20180509 [2018/05/09 14:45] – wenxx181 | imagerteleconnotes20180509 [2018/05/10 14:19] (current) – wenxx181 | ||
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| * Workshop Follow Up Items | * Workshop Follow Up Items | ||
| * issues of mechanical model: focal plane weight, needs to be revisited and a more realistic model in a few weeks. Heat sinks, mounts etc. | * issues of mechanical model: focal plane weight, needs to be revisited and a more realistic model in a few weeks. Heat sinks, mounts etc. | ||
| - | * Toki will provide PB focal plane module | + | |
| * 1/f | * 1/f | ||
| * a number of discussions need to be tighten together | * a number of discussions need to be tighten together | ||
| * temperature stability of ADR, Hannes asked to what extend spikes of T affect responsivity | * temperature stability of ADR, Hannes asked to what extend spikes of T affect responsivity | ||
| * we know the magnitude of T spikes; should be straightforward | * we know the magnitude of T spikes; should be straightforward | ||
| - | * we don’t have complete cryogenic model, temperature loading is AI for Shaul and jPL | + | * we don’t have complete cryogenic model, temperature loading is **AI for Shaul and jPL** |
| * Precession | * Precession | ||
| * Jacques proposed slow precession; because the scan by scan is closer together, you can make full sky; harder to make continuous map with fast precession | * Jacques proposed slow precession; because the scan by scan is closer together, you can make full sky; harder to make continuous map with fast precession | ||
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| * ratio of total NEP squared, largest 3% | * ratio of total NEP squared, largest 3% | ||
| * basically FDM is higher by 2-3% level. | * basically FDM is higher by 2-3% level. | ||
| + | * Toki: readout noise is function of bolo normal resistance; TDM ~10 ohms, FDM ~1 ohm; TDM higher because it needs to compensate high current noise | ||
| + | * **Conclusion: | ||