Summary

The transit and tie-up ended being cut short for many techs, myself included, due to Schengen visa issues. I left the lab on April 30th in care of the remaining techs with a "check up" list for some basic monitoring tasks. 

Typical BOX tests and maintenance were carried out successfully. The instruments were only used briefly, and not all instruments, for Pmag demos for the JR Academy.

Most of the time onboard was spent sorting through, organizing, and inventorying all of the Pmag instruments and decades of accumulation of random equipment and supplies in preparation for the looming August demob. Around 20 boxes of supplies that generally aren't not in use on a typical expedition, were tentatively packed and inventoried. Anything that is still in use was not actually packed but just has a location that is can later be packed, but more importantly all of the inventory numbers (including export control, schedule B, and COM) are recorded into spread tables stored on confluence. The connectivity of all instruments, accessories, and computer hosts was mainly completed as off 4/29/24, but the remaining details will be finished while working remotely after leaving the ship.

SRO Items

Items shipped

None

Items received

None

Items ordered

None

Instruments

Superconducting Rock Magnetometer (SRM)

SRM BOX Field Trap, Measurements, and Experiments

At the BOX the SRM drive belt was complete loose with the tray pins also too wide and dropping the string and as the belt was skipping off the drive gear and not consistently advancing. The pins and the belt tension were adjusted and seems to be advancing correctly.

The field was measured and was within specs, how every the tray noise seemed a bit higher than usually. The a better field was trapped and the noise dropped from 10-6 to 10-7 in intensity.

Open	Open
SRM field profile and tray noise pre field trap.

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SRM field profile and tray noise post field trap.

(see the SRM page for details).

Haskris Water Chiller

Sump stuff and purge to be added(see the Hasrkis page for more details).

JR6 Spinner Magnetometer

The JR-6 was used only briefly to verify that all old calibration standard was giving bad values, which is was. The cause is unknown but probably from years of it being stored with magnetically strong volcanic samples and was discarded.

Magnetic Orientation Tools (MOTs)

All three Icefield tools passed the "net-magnetic north" rotation checks. One palm pilot's battery had died and need the software re-installed. They will be charged again near the EOX to avoid this for the X403.

APC key wear issue.  to be added.

For more details see the MOT page.

D-2000 AF demagnetizer

 This was used a few time during the BOX to demagnetize the pmag play cubes for a demo for the JR Academy.

MFK2 Kappabridge

The Kappabridge was not used at all.

Thermal demagnetizer TD-48SC

The Thermal demagnetizer was not used at all.

IM10-30 and IM-10 Impulse magnetizers

IM-10 used briefly at the BOX to give IRMs to the pmag play-cubes. Coil number 3 is still in the IM-10-30 unit for up to 2.5 T for IRM acquisitions.