33S on FC6 overnight. Preparing to send beam to DRAGON now, and confirm isotope.

Source gas pressure gauge on canister = -20"Hg. MCIS pressure = 7.8e-8 Torr.

Beam tuning in progress. Source gas canister at -20"Hg. MCIS pressure at 7.62e-8 Torr.

Delivery of 33S6+ to DRAGON continues. A couple of RF tweaks done over the weekend. Source gas canister pressure at -20"Hg. MCIS pressure at 7.3e-8 Torr. At this rate, we could deliver 33S until approximately forever.

33S6+ delivery to DRAGON continues. Looks like there was an RF tweak overnight. Source gas canister still at ~-20"Hg. MCIS vacuum at 7.4e-8 Torr.

33S6+ delivery to DRAGON continues. It is Maintenance Day for everybody else today. Source gas canister pressure = -20"Hg. MCIS pressure = 7.7e-8 Torr.

33S6+ delivery to DRAGON continues until Saturday morning. All the signs are that beam is excellent. Source gas canister is still at ~-20"Hg, and MCIS vacuum is at 7.0e-8 Torr.

Delivery of 33S6+ continues to DRAGON for the final day. Some online tuning of the line overnight. Source gas canister pressure remains at ~-20"Hg, and MCIS pressure is at 7.1e-8 Torr.

Keerthi set up the Supernanogan for 15N operation and destined for TIGRESS, using two source gas options: a miniature bottle of enriched 15N2 and a canister with a charge of research-grade 14N2. The canister is similar to the one we used for the 33S run to DRAGON, which finished Saturday morning. Canister is at -22"Hg and MCIS at 7.27e-8 Torr. A couple of beam stability tests were conducted at 15N4+ and 15N6+. Bob can choose which one he prefers to use. 15N4+ is selected and tuned through IOS up to the RFQ presently (~10:30 am).

Later... Bob reported at the Beam Delivery meeting that the 33S6+ beam was a very nice beam. We appreciate hearing it.

User tuning began Sunday night. Beam physics expert chose to retire the IOS:Q1 defeat, as he did not know until yesterday that it existed. He discovered it after attempting to retune yesterday around noon from scratch and making a mess, notwithstanding Keerthi's clear instruction to leave it alone. He also does not know that Rick developed a tune for this, which provides cleaner transmission than the "book" tune. Pity. Presently there are some 75enA of beam at FC6. That should be enough. Note that there were some 90enA with the "defeat" tune in place, prior to changing the IOS tune. Canister is at ~-22"Hg, and MCIS pressure at ~7.0e-8 Torr at ~09:00.. ICR is tuning through presently.

Setup into ISAC-II began last night. Tuning is in progress now. Beam on FC6 overnight. Canister pressure is -22"Hg and MCIS pressure=7.1e-8 Torr. Pressure showed correlation with temperature. It is overcast today and cool, suggesting a fairly flat response today.

Delivery to TIGRESS began yesterday or so. ICR reported beam intensity drops overnight. I'll look at it presently. Meanwhile, canister pressure is still ~-22"Hg and MCIS pressure is 7.09e-8 Torr.

Later... Check source at request of ICR. It looks mighty fine. Slight tweaks on RF, but really no great change. FC6 was and is 200enA, though it was around 80enA this morning.

Delivery of 15N4+ to TIGRESS continues. Source gas canister is still at ~-22"Hg, and MCIS pressure is 7.2e-8 Torr. ICR reported intensity drops a couple of times this morning. The attached Stripchart suggests beam from the source is down to about a third from status quo. We will look into it now.

Delivery to TIGRESS ended this morning as scheduled. ICR took nice emittance scans and is completing a target snapshot now. Canister still at -22"Hg and MCIS at 7.3e-8 Torr.

Chance to snap some wirescans. Attached.

After EOB activities from 15N4+ run that ended this morning, we have begun preparations to switch over the ion sources. Turbos off just after 11:00. We have Mg source material ready. We will be using the MWS ion source. Due to the requirement to run the source at 53kV, we will also remove the Supernanogan cart from the cage as a sparking precaution.

Later... MWS backplate removed and reworked for Mg operation. Buttoned up and under high vacuum again now. Currently 2.5e-6 Torr at ~14:00.

Later... Plasma is lit. 24Mg begins to be visible after a while.

Note: Supernanogan cart is in its service dock.

On Saturday we opened the MWS and set it up for Mg operation. Everything went well. We are using the pair of half-moon Mg metal plates together with a thin Mg foil liner inside a bottomless quartz liner. Tune setup for HEBT/SEBT operation set up yesterday. 26Mg is selected. MCOL3A/B tuning for true centre is in progress right now while there is opportunity.

Beam idle overnight. Beam is being used as a pilot beam for this run. Source was knocked off by a power bump on Monday evening. Signs are that the root cause is the same as last time, loss of 24V to the IOS interlock panel.

TUDA-II began taking beam around midnight last night. Beam on FC6 for a good part of the night. Steady as she goes.

Beam waiting quietly on FC6. There was a power bump on Friday just after noon that tripped the world. Keerthi restarted OLIS. Beam never really came back to its former glory. We'll see if there might be an opportunity to touch it up.

Later... Mag stability program reset required. Internal field probe is at its limit. Hmmm... Meanwhile, revert to EPICS field probe, which unfortunately is not temperature-compensated.

Beam was redirected to TIGRESS yesterday. RIB delivery to TIDA-II was rendered impossible due to a failure in the target or module. We have a verbal request in place now to change mass from 26Mg1+ to 24Mg1+. Attached is a plot of beam overnight on FC6 prior to changeover.

Mass change yesterday morning from 26Mg1+ to 24Mg1+ from the MWS. It was tough to get stable beam from the source, and there are signs of Mg plating out on stuff. Keerthi was here last evening and again overnight to open the source and clean it up. Good job.

Later... There were a couple of power bumps over the lunch hour. One took out OLIS, the other didn't. Yes, the IOS Enable panel had to get a local reset yet again. I have an ECR submitted to Controls for UPS support on the 24V power supply that feeds it. Source restarted reasonably okay.