Today I surveyed the lab and associated rooms to determine open questions and the required preparation work.

=== F0 ===

I want to try using a stripper foil again.  During the beam test, we determined with a blank target that the small aperture itself limits the transmission.  The diameter was 1 
cm (should be verified).  We can try with a larger foil this time.  

I found my old carbon foils in the clean room nominally of 220 ug/cm^2, 330 ug/cm^2, and 560 ug/cm^2.  The original size is 24 x 68 mm^2 (though some have been previously cut 
and used).  We can have a target more than twice the diameter and see if it helps this time.  220 ug/cm^2 is sufficient for nearly-complete charge-state equilibrium, and would 
induce about 2.3 MeV of energy loss for the 26Al beam (using the beam energy obtained during the test).  

To do: 
    0) F0 gas cell pressure test (before new foils installed)
    1) Check the target frame and mounting situation
    2) Decide what other thin foil (Al or Havar) might be useful
    3) Mounting, alignment
    4) Fill LN2, set up cameras, beam viewer ...
    

=== F1 ===

Probably nothing to do.  Situation normal.

=== F2 ===

Situation looks okay.  We could test the SSD (triple alpha source) and PPAC with a mask.  

To do:
    1) Dynamic range needs to be adjusted (different from 7Be THM experiment in 2016.11)

=== F3 SSDs ===

4 Edinburgh W1-1500 SSDs were brought safely from the UK.  Yang and I tested additional PreAmps today, and it seems we have 93 out of 96 channels available for the DSSDs so we 
can use three deltaE-E telescopes.

To do:
    0) Circuit boards for Edinburgh SSDs (commonly wire 16 channels to 1) ... several are already made I believe
    1) Check status of local SSDs, especially 75 um DSSDs and determine which to test / use in exp.
    2) Remove beam left PA Faraday cage and replace with larger one (NB: need to find vertical supports)
        a) The beam right PA box only has 2 feedthroughs (2 used per DSSD) and the left one has 4 feedthrough
        b) Present PA boxes only hold 6 PAs each, but the larger box can hold 8.
    3) Check the gain chips on all the amplifiers.  They may need to be changed compared to the 7Be THM exp in 2016.11
    4) Wire additional circuits for 3rd DSSD (circuits for #1 and #2 are existing).  All modules are existing
    5) Decide if we measure the 26Al beam energy directly at F3 with the blank target
        a) If so, we need another smaller circuit for low-gain
    6) Check all SSDs.  We can save time using 207Bi beta source in air for the initial check of 1.5 mm SSDs
        a) We will already need the source for beta calibration, and it is existing at RIBF
    7) Determine method to employ for 2 gain settings of forward-angle SSDs
        a) We adjust the coarse gain knob on Ortec 572 Amplifier
        b) We use two separate circuits and move the signal cable from one to the other
        c) We use two separate circuits and split the PA output
    8) Choose F3 Si telescope floor plate (several are existing in the red toolbox)
    9) Determine if the Si telescopes can be moved below the NaI bucket position, for alignment and installation safety
        a) Typical setting of the F3 downstream floor is ~170 mm.  But labels are contradictory ('180 max' vs '190 max')
        b) If this won't work, we need to consider how to do alignment.  Thinner floor plate of 8) preferred for this reason.
   10) Noise reduction, threshold and FastAmp settings, alpha calibration, beta calibration, DSSD masks, etc ...
   11) Camera to monitor biases

=== F3 NaI ===
Already some tests were performed before I arrived.  I also moved the 'bucket' from under the E7 stairs to near F3.

    1) Understand the strange spectra obtained so far
    2) Find optimal offline setup (present setup may be cramped if teams for SSD and NaI work in E7 simultaneously)
    4) Efficiency check in offline geometry
    5) Energy calibration, noise reduction
    6) Installation into chamber (last day), new efficiency check
        a) Check if the number of detected gamma-rays is changed by placing a ~1 cm Al block near the 22Na source
        b) This could confirm our results from the test experiment

=== F3 targets ===
The new target mount was ordered.  Imai san loaned me the ~10 mg/cm^2 carbon targets.

    1) Install all targets (CH2, C, thick stopper, blank
    2) Check controller works, etc
    3) Alignment

=== F3 PPACs ===
These are existing from the 7Be THM experiment and already installed in the chamber.

    0) Pump down F0 overnight to achieve good vacuum.  Make sure vacuum acceptable when PPACs filled with gas.
    1) Check with masks
    2) Alignment