H* weekly meeting

Tuesday 29 Mar 2022, 14:00 → 16:00 Europe/Zurich

power_meter.pdf

Checking shipments:

Igniter for Hg lamp not arrived yet.

THz filters not shipped yet (contact)

Hositrad order arrived 

THz power meter:  SLT has a larger sensor and better linearity across the range but MKS is compatible with the JUNO readout and works up to 100mW. The MKS power meter set is also calibrated from 0.7 THz to 10 THz while the SLT is only calibrated down to 1.4 THz unless paying extra. (see attached slides).

Simulation: Tim extending calculations to N=30. 

Chloe will discuss with Daniel to understand influence of pulsed THz on deexcitation.

Pressure issues still there, we see a super exponential increase in pressure at 0.8 ccm. 

Maxime will set a interlock for the flow at 1e-5 mbar.

Measurment of B-field in ExB region. to make sure the gauges do not influence the B field significantly.

Check noise signal in MCP.

Measure B-field in Helmholtz coils. 

Fix the laser table periscope until safety check. 

Look into 2s pumping using laser light.