| ID |
Date |
Author |
Type |
Category |
Subject |
|
182
|
Sat Nov 7 12:21:35 2009 |
Keerthi Jayamanna | | | 17O hand valve status |
17O+3 at FC6 became 550nA.
17O hand valve found to be closed. Probable cause may be the cold weather.
After opening the valve beam came back. 2.6uA of 17+3 at FC6.
Notes by DMG 8-Nov-2009:
This valve is barely cracked. Temperature will affect it at such close settings.
Starting pressure Saturday when beam fell off: 4e-8 Torr.
Pressure today with strong beam: 6e-8 Torr.
Pressure during Saturday setup where beam began to quench: 8e-8 Torr.
Conclusion: Correct operating pressure range for Supernanogan source is tight. We removed the MWS head, anticipating this to be the case. It's so even when the slight extra pressure is entirely due to the source gas. |
|
188
|
Wed Nov 18 23:46:14 2009 |
Keerthi Jayamanna | | | OLIS development started |
All turbos in the OLIS and MCIS are off. No controls for the MCIS. Pumps switched of by pulling the CG cable.
All the gate valves are off. All bypass are removed |
|
193
|
Thu Nov 26 06:20:21 2009 |
Keerthi Jayamanna | | | Supernanogan Development |
Swiched off all the pumps and ion gauge for oven installation.
|
|
194
|
Thu Nov 26 06:22:58 2009 |
Keerthi Jayamanna | | | Cusp source |
Arc power supply does not hold any voltage. |
|
263
|
Fri May 7 12:29:41 2010 |
Keerthi Jayamanna | | | Supernanogan development |
Supernanogan development for 33S started. All MW and MW and MCIS power sypplies are off.
Gas for microwave source also closed from hand valve
Later... separator field stability development. Local Hall probe is online. Let it cook. |
|
264
|
Fri May 7 19:10:05 2010 |
Keerthi Jayamanna | Routine | General | OLIS status |
| MW source is back and running.
A new vacuum chamber is added to the Supernanogan RF block.
SO2 is not filled in yet. |
|
275
|
Mon May 24 22:42:51 2010 |
Keerthi Jayamanna | | | 33S development |
Tried to see the background before 33S installation. Found few problems: MCIS:YCB1 does not hold more than 58V.
Very difficult to transport the beam without YCB1. Need to find a solution. Open and fix it is not an option even though we have a ready spare. It will take two weeks to get the vacuum back.
------------------------------
Outgoing TIGRESS experiment was the occasion for another ISAC milestone, 8MeV/u through the SCC for the first time just around midnight last Friday, May 21st. This also represented the first 8MeV/u beam to an experiment. And we can proudly say that OLIS beam was used. TIGRESS run ended at 08:30 as scheduled. Attached is a trar graph of beam on FC6, snapped periodically throughout the run. As before, you can see a small daily variation likely related to temperature of NA-LCW. There were reports of HPL tests this past Thursday and Friday. Evidently no effect over here.
|
| Attachment 1: Picture_1.png
|
 |
|
276
|
Tue May 25 00:19:18 2010 |
Keerthi Jayamanna | | | 33S |
Finally got something going. YCB1 short to the ground. YCB common plate connected to YCB1 power supply. We were lucky. Polarity was right. Ran the source with no 33S.
Saved file as “backgroundNo33S.dat” No optics set yet. SO2 connected not open yet. 33S 17% is in the oven, but not heated yet. |
|
277
|
Tue May 25 11:28:00 2010 |
Keerthi Jayamanna | | | 33D dev |
after 24 hours background spectrum saved as "BackgroungNo33S002.dat"
RF Amplitude :1.553 , RFoutput power= 0, Output power (dB)=0 |
|
278
|
Tue May 25 11:58:02 2010 |
Keerthi Jayamanna | | | 33S dev |
after 24 hours background spectrum saved as "BackgroungNo33S003.dat"
RF Amplitude :7.767 , RFoutput power= 5W, Output power (dB)=36.4 |
|
279
|
Tue May 25 22:02:41 2010 |
Keerthi Jayamanna | | | 33S spectrum |
33S spectrum is saved as 33S_spectrum.dat |
|
383
|
Fri Feb 18 11:05:50 2011 |
Keerthi Jayamanna | | | OLIS Problems |
| PE set point is ok but read back is half of the real value. |
|
384
|
Fri Feb 18 11:43:32 2011 |
Keerthi Jayamanna | | | IOS: EE Status |
| IOS:EE found damaged. It has been replaced with IOS:SSEE-Michael B. |
|
385
|
Tue Feb 22 18:52:53 2011 |
Keerthi Jayamanna | | | Ti+7 efficiency studies |
2mm diameter Ti was installed to set the optics. Later 0.0005 in thick foil will be installed for real efficiency studies. |
|
386
|
Tue Feb 22 18:54:43 2011 |
Keerthi Jayamanna | | | EE and SSEE |
Both EE and SSEE problems were solved. They are working OK now. |
|
387
|
Wed Feb 23 22:29:48 2011 |
Keerthi Jayamanna | | | OLIS mahnet |
Klixon at the OLIS bemding magnet is not funtioning properly. |
|
389
|
Fri Feb 25 17:27:11 2011 |
Keerthi Jayamanna | | | Titaniums efficiency test |
Small peice of titanium wire is installed and running aroung 100pA of Ti+7 at FC6.
OSAC are OPs taking data. |
|
388
|
Fri Feb 25 17:27:11 2011 |
Keerthi Jayamanna | | | Titaniums efficiency test |
Small piece of titanium foil 0.0005" thick is installed and running around 100pA of Ti+7 at FC6.
OSAC are OPs taking data. |
|
390
|
Sat Feb 26 22:06:03 2011 |
Keerthi Jayamanna | | | Ti+7 status |
90pA of Ti+7 is running smoothly. 22:05 Feb26th |
|
391
|
Wed Mar 9 11:09:02 2011 |
Keerthi Jayamanna | | | IOS:SSW failed |
IOS:SSW failed unexpectedly. No reason found. Came back on easily. |