Ron Bihler cell
Y-shaped source tube with 8 dispensers
- 4x Alvatec enriched 40K
- 2x Alvatec Rb
- 1x Alvatec Cs
- 1x Alvatec natural abundance K
1) Alvatec dispensers work by sublimation, SAES by chemical reaction.
2) For Alvatec sources, the current necessary to reach the activation threshold is therefore pressure dependent (think PV=nRT). If we are running the dispensers in a higher pressure environment, a greater temperature - or current - will be needed to evaporate the metal.
3) Alvatec sources are cleaner than SAES sources (see pg 7 of Alvatec data sheet)
These resistances are between the dispenser lead and the center pin lead.
|enriched 40K #1||215||Alive|
|enriched 40K #2||209||Alive (but waterlogged?)|
|enriched 40K #3||216||Dead|
|enriched 40K #4||206||Dead|
note: take care to make sure counter-propogating beams have the same path length so that the beam profile of each is balanced.
Magnetic Gradient Coils
Measured by Mike Yee (in his thesis, pg. 38) @ I=4.64A
Using the "Dylan Circular Polarization Tool" the side windows should be bright and the vertical should be bright.
|Date||Repump Power (before fiber)||Repump Power (after fiber)||Repump Power (before TA)||Repump Power (before final AOM)||Repump TA current||Trap Power (before fiber)||Trap Power (after fiber)||Trap Power (before TA)||Trap Power (before final AOM)||Trap TA current|