Using the Physics Calculator

Calculating Power

Direct yourself to either the Physics Calc or MPS Operator page, located on the FRIB Launch Page.

If on the Physics Calc page, look at the bottom left of the page for Atten. Power Calc. On MPS Operator you will find this in the upper right, under the Beam Power and Super Convenient Controls panels.

If you want to predict Power using Current, use Attenuation Power Calc. If you want to predict Current using your desired Power, click Atten. Current Calc directly to the right of Atten. Power Calc.

Regardless of the menu selection in Step 3, you will be asked for the following parameters that can be found in the following locations:

Ion Mass (amu) - HourLog or Display 1

Pre-strip Charge - HourLog or Display 1

Final Energy - FRIB Launcher → Diag Launcher → BPM Overview → Fixed BPM Overview. Column Energy Estimate, Row LS3 Exit.

Stripping Efficiency (%) - Display 1 if available, but Diag and AP have different methods

Depending on your menu selection for Step 3, you'll have to find one of the following, which can be found in the following location:

1102 Current uA - FRIB Launcher → Diag Operator. Look down into Faraday Cups and find 1102.

Power - Consult limits or desired power from other sources

From there, ensure all values are properly entered, then consult the calculated bottom value,