2) Temperature of coils is critical for MM search. Signal-Noise Ratio (SNR) is only about 1.4 at LN2 temperature under best-scenario case (with optimal filter). 

3) For axion search, the SNR is great with optimal filter (169 x 500).  Forming a network with long baseline (earth-moon) can detect the axion wave.

4) For anti-correlation study between MM background and cosmic rays, Zhiyong's lab has optical table with dimension of 0.7x1.0 m, a bit small for existing magnetometer apparatus. Room 406 shall have table large enough.

 

From discussion, our conclusion is currently studying anti-correlation between MM background and cosmic ray can be a next-step to do. The most urgent thing is to have a prototype working (which may need to have cryogenic cooling) without anti-correlation detector, maybe also measure its response to radioactive sources. So the action items are:

1) Testing magnetometer with pseudo signals, making sure it has sensitivity to MM signal. @Jiangmin

2) Simulation of cosmic-induced particles at sea-level (including muon-induced). Passing to Jiangmin for checking potential background induced by non-relativistic particles with magnetic moment. @Yusheng @Qing

3) Vacuum chamber for cryogenic cooling the coil. Contact the company. @Qing