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- *NEG ZAO modules have been installed and wired by Marcy Stutzman ...o ensure there are no leaks, and that the NEG modules are not shorted out. Marcy installed an extractor gauge for vacuum monitoring after bake.1 KB (188 words) - 07:39, 5 October 2022
- ...vs. energy for H2, CH4, and CO. These were weighted by gas pressures from Marcy's presentation last week.881 bytes (129 words) - 14:42, 24 March 2020
- #Marcy345 bytes (54 words) - 09:59, 15 February 2024
- : Marcy - Fitting update [[media:24Feb2017ExtrapolationUpdate_v2.pdf]] : Marcy - target ladder1 KB (177 words) - 15:17, 27 February 2017
- #**4 10 kV SHV feedthroughs. (Marcy, do we have these?, how many?) #*Marcy dimension requests [[media:screens18gun.pptx]]1 KB (166 words) - 07:39, 21 April 2022
- * (Marcy) Remake A2 joint * (Marcy) Replace harp1 KB (172 words) - 10:05, 9 September 2021
- == Marcy/Phil - plans for the Y-chamber (NEG coating, NEG flange, IP, window) ==884 bytes (130 words) - 09:58, 10 October 2019
- Attendees : Carlos, Mamun, Marcy, Riad, Joe * Marcy - list any UITF gun and beam line jobs or repairs to make photocathodes rel1,013 bytes (160 words) - 13:15, 20 July 2020
- * Marcy's MolFlow TN - writing?1 KB (159 words) - 10:24, 2 August 2022
- Marcy: Travel 17-22313 bytes (49 words) - 17:46, 16 September 2015
- ; Marcy (5 min) - Vacuum beam line status (viewers, apertures, pumping) and post-ba ; Reza, Alica, Marcy, Yan, Dennis (30 min) - Beam commissioning plans: [[media:BeamINJphase1v4.p1 KB (180 words) - 16:06, 29 January 2021
- #*Marcy, Joe mentioned installing this flange in the injector was a challenge: the #*Marcy, what are your conclusions on the HV chamber vacuum?2 KB (298 words) - 08:58, 13 April 2022
- ; Marcy - mini-Mott recovery plan428 bytes (72 words) - 10:15, 7 June 2022
- Marcy [[File:Fitting_Function_dependence.pdf]]508 bytes (70 words) - 12:49, 28 January 2016
- ...grounded + flat & tilted + Gabriel will try electrostatic model with slots Marcy recommends for conductance # Marcy blow off new NEGs, install w/o ground screen, add NEG wiring, gauge, blank1 KB (176 words) - 23:22, 26 January 2022
- * AVS Symposium, Charlotte NC, October 24-29 (Marcy) * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)2 KB (214 words) - 06:37, 25 August 2021
- At today's meeting Marcy summarizes the measurements and her analysis. We'll discuss what is neede420 bytes (59 words) - 14:03, 30 August 2021
- * Marcy - On-call report * AVS Symposium, Charlotte NC, October 24-29 (Marcy)2 KB (299 words) - 09:05, 18 August 2021
- **Marcy - Description of vacuum - Molflow simulations and ion pumps453 bytes (67 words) - 20:07, 1 October 2020
- # Update by Marcy on Degrader installation607 bytes (88 words) - 07:59, 4 April 2024
- * AVS Symposium, Charlotte NC, October 24-29 (Marcy) * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)3 KB (361 words) - 08:23, 1 September 2021
- == Friday, October 23 SWING (Tim, Marcy) == Started shift with white board tool-box meeting (Tim, Daniel, Matt, Marcy, Riad, Joe). The look up [https://logbooks.jlab.org/entry/3355838 table] o3 KB (468 words) - 17:20, 24 October 2015
- #* It is awaiting vacuum degassing at 400 C for as long as possible (Marcy? Phil?) #* Marcy, could you please check with ohm-meter to make sure screen is not shorting3 KB (443 words) - 08:05, 22 June 2022
- * [[8/27/21 - JLab-Euclid meeting]] - Marcy presents results of summer beam tests on diamond targets475 bytes (58 words) - 08:16, 27 August 2021
- ## NEG screens: what is needed to finalize the design? Marcy, Shaun589 bytes (92 words) - 11:16, 28 March 2022
- * Diamond Mott beam test #1, how do we analyze data, Riad or Marcy analysis training? Phil, rebuild 3" spool/nipple? * UITF schedule meeting just after 1:30 today...Shukui, Carlos, Max, Marcy, Phil2 KB (352 words) - 09:39, 4 August 2021
- * Marcy - remaining vacuum tasks, harp done?, chopper valve/bake region ...IMEKO TC16 7th International Conference on Pressure and Vacuum Metrology (Marcy)1 KB (174 words) - 10:47, 18 April 2023
- * Matt's PV - graphics from Joe Wien, Marcy Molflow, Riad PV * Marcy mini-Mott1 KB (222 words) - 10:36, 5 July 2022
- * Marcy or Mamun - Jobs when venting Prep chamber587 bytes (88 words) - 12:59, 16 October 2020
- **Two simulations used a constant H2 density of 10^17 and two used Marcy's H2 density profile for CEBAF from Molflow.1 KB (236 words) - 11:42, 3 August 2020
- * AVS Symposium, Charlotte NC, October 24-29 (Marcy) * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)2 KB (226 words) - 09:48, 22 July 2021
- * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, ...) ; Status on partner projects - next week when Marcy is back in town2 KB (237 words) - 09:57, 23 June 2021
- * Marcy - select gold targets * Marcy - any tech note on thickness, statistics, target and beam scans?1 KB (216 words) - 16:18, 19 March 2021
- * Carlos/Marcy - working mostly on UITF beam line (gun & depo)598 bytes (82 words) - 14:18, 25 September 2020
- ** Marcy, Riad, Joe - Writing TN on the Mott chamber assembly [[media:MottConstructi # (Tim, Marcy, Dan) Complete experimental asymmetry vs. target thickness for Runs I/II; s2 KB (228 words) - 09:24, 13 May 2016
- * Marcy/Phil gun chamber vacuum work : NEG coat, when 1400's arrive, ports assigned662 bytes (93 words) - 21:12, 19 October 2021
- * NEG screens - Marcy ** Marcy to meet with Shaun3 KB (412 words) - 11:43, 17 March 2022
- ...the wire option for the anode and tube. We'll use 1 mm thick Cu wire that Marcy has used before, adding a strain relief. #*Weaved wire mesh that Marcy prefers: 0.88 mm wire diameter, 0.5 inch square opening is in Bubba's offic2 KB (381 words) - 13:05, 16 May 2022
- 2. Marcy - Target thickness and extrapolation method [[Media:FESEM_uncertainty_effec797 bytes (115 words) - 17:19, 17 December 2015
- #Marcy will work with Danny to select and finalize two kapton coated K type thermo692 bytes (109 words) - 17:38, 6 June 2021
- * When Phase II vac/HV jobs ramp down - test UCSB/RIT samples @ UITF? (Phil, Marcy, Jessica, Carlos, Mamun) ...IMEKO TC16 7th International Conference on Pressure and Vacuum Metrology (Marcy)2 KB (234 words) - 10:47, 2 May 2023
- 4. Time permitting: Marcy - summary of thickness uncertainties, dependence of Ao on fitting function714 bytes (101 words) - 21:27, 16 February 2016
- Marcy - Target thickness759 bytes (109 words) - 11:42, 27 March 2015
- Marcy: [[File:Marcy_15March2016.pdf]]724 bytes (101 words) - 10:56, 15 March 2016
- Both Dan and Marcy are making great progress respectively on the analysis and target thickness810 bytes (114 words) - 13:30, 29 July 2015
- :(Marcy/Tim/Riad) Status of fitting asymmetry vs. thickness and rate:corrected vers :(Joe/Marcy/Riad) Technical Description of the CEBAF Mott Polarimeter and Detector Chai3 KB (401 words) - 12:28, 6 February 2017
- 1. Marcy - update on target thickness828 bytes (117 words) - 13:21, 12 August 2015
- * Marcy/Bubba/Phil - path forward on vacuum chamber modification/assembly824 bytes (120 words) - 15:53, 16 November 2021
- *Marcy/Carlos - sent drawings of the CEBAF photogun & anode622 bytes (96 words) - 17:57, 20 July 2020
- * 200 kV gun job at UITF (Marcy, Jessica, Phil, Carlos), * Update on the R&D in GTS (Gabriel) and TL1137 (Mamun, Marcy),2 KB (264 words) - 11:30, 13 December 2022
- 1 Viewer assembly fixture => Marcy, do you really need this, or skip? 2 Will NEG fit 25 l/sec IP on Y => Marcy, do you need any help?2 KB (246 words) - 11:16, 8 October 2020
- #*Marcy has 3 of the 10 kV SHV feedthroughs. #*Bubba ordered more weaved wire mesh that Marcy prefers: 0.88 mm wire diameter, 0.5 inch square opening2 KB (312 words) - 08:45, 27 April 2022
- * Marcy's Gantt chart goes here => https://jeffersonlab-my.sharepoint.com/:x:/g/per3 KB (459 words) - 14:48, 30 April 2024
- #Marcy (QE scan)796 bytes (126 words) - 12:00, 9 April 2014
- #Marcy, find the y-chamber in UITF, have it degassed, recommend a pump configurati #Marcy investigate precision linear vacuum actuators...are there other options to2 KB (322 words) - 09:44, 13 June 2019
- ...h - H2, CH4, CO - cross-sections vs. energy, and weighted by gas densities Marcy showed last week [[:File:ICSPlot_H2CH4CO.png | ICS vs Beam Energy]], [[:Fil980 bytes (139 words) - 15:51, 24 March 2020
- == Friday, October 23 SWING (Tim, Marcy) == Started shift with white board tool-box meeting (Tim, Daniel, Matt, Marcy, Riad, Joe). The look up [https://logbooks.jlab.org/entry/3355838 table] o6 KB (856 words) - 18:04, 18 May 2018
- ...roup Leader), Steve Covert, Phil Adderley, Riad Suleiman, John Hansknecht, Marcy Stutzman, Joe Grames.]]1 KB (172 words) - 19:03, 29 May 2014
- # Mamun/Marcy - status of sibling target thickness measurements868 bytes (132 words) - 14:10, 18 December 2014
- *Marcy will use MolFlo to estimate the vacuum isolation of each dif pump design, a *Next meeting should include Phil, Marcy, Alicia, Yan and Reza. Matt will distribute the drawings I get from Gary.2 KB (400 words) - 14:35, 4 June 2021
- Present: Alicia, Reza and Yan, Marcy and Joe, Gary, Shaun and Danny, and Lakshmi868 bytes (150 words) - 12:54, 29 April 2021
- ...the status of the theory input and Xavier should be able to join too. If Marcy is ready we'll have a first peek at the complete target thickness measureme856 bytes (140 words) - 09:10, 11 May 2015
- ...the status of the theory input and Xavier should be able to join too. If Marcy is ready we'll have a first peek at the complete target thickness measureme855 bytes (140 words) - 09:09, 11 May 2015
- * Cat 2 PPE gear ordered for Joe, Bubba, Carlos, Marcy, Riad => pick-up on Thursday (otherwise 2 week delivery time)857 bytes (128 words) - 17:12, 25 August 2020
- * Marcy905 bytes (137 words) - 10:35, 10 March 2023
- #Phi/Marcy, can you confirm Danny's parts list, set them aside when found? '''=> Phil, #Marcy, can you look at heating blankets for this geometry, good idea? '''=> come2 KB (388 words) - 09:15, 21 June 2019
- * CEBAF "200 kV" jobs (Marcy's vacuum "hook-ups", Carlos' HV Conditioning TOSP, Phil's plans for the har2 KB (320 words) - 08:29, 7 February 2023
- # Marcy, Tim, Daniel, ...1 KB (152 words) - 11:46, 13 August 2016
- **Description: Marcy sent vacuum simulation data for H2 and CO for the CEBAF photogun through th941 bytes (139 words) - 15:06, 24 March 2020
- From Marcy - We have decided that we would like to install a new manipulator to replac From Marcy - Those are the uitf ones from the FEL - are we looking for the ones we use3 KB (452 words) - 09:49, 26 March 2020
- : (MARCY) After all of the above are done, pursue your "prediction" studies, e.g., : (MARCY) - target ladder4 KB (536 words) - 16:11, 20 February 2017
- ** 4/17 - 5/1: Marcy * Marcy's schedule...4 KB (625 words) - 08:29, 17 March 2023
- * 9/15/2021 Marcy options for how NEG's might be mounted [[media:UHV1400MountV2.pptx]]1 KB (168 words) - 09:38, 31 March 2022
- ...t thickness - Mamun completed various measurements of the Run 1 siblings. Marcy has been analyzing the FESEM images, organizing the metrics and will presen1 KB (192 words) - 10:15, 8 June 2015
- * Marcy presented vacuum simulations of the CEBAF photogun and beamline. These simu1 KB (151 words) - 14:11, 24 March 2020
- * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)1 KB (176 words) - 09:57, 14 July 2021
- * Marcy checking on top hat configuration for Y-chamber [[media:200326_viewer shiel * Marcy get quotes on A1/A2 cubes and 6-way cross w/ R-R3 KB (421 words) - 17:15, 2 April 2020
- 6. Marcy/Shukui/Joe - Characterization tests of GaAs/GaAsP, DBR, Sb-cathode1 KB (171 words) - 13:30, 10 August 2015
- * Marcy993 bytes (151 words) - 10:22, 15 January 2020
- *Marcy presented graphs of outgassing - i.e. where do ions/gas go once formed? Do1 KB (191 words) - 16:25, 16 April 2020
- * Marcy is checking on metallized YAG screen w/ hole953 bytes (157 words) - 15:42, 21 January 2020
- * Joe - do we have all ion pumps and valves per model? => '''Marcy's first pass, but needs to see model again''' [[media:200320_ion pumps and3 KB (486 words) - 09:18, 2 April 2020
- * Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)1 KB (171 words) - 07:59, 7 July 2021
- '''[[Marcy Stutzman]]''' x70731 KB (170 words) - 12:26, 22 May 2023
- *a note to phil and marcy, on the real assembly work, the bottom and right side of the cube are no pr1 KB (210 words) - 15:29, 14 June 2021
- * Marcy2 KB (215 words) - 11:42, 11 September 2020
- 1) Benefits of NEG coating, toward achieving XHV (POC, Marcy) 2) Potential benefits of cryopumping toward achieving XHV (POCs, Marcy, Anahi)3 KB (427 words) - 11:50, 9 February 2018
- :Review Marcy/Daniel survey of injector IP power supplies [[media:190220_IP_Summary.xlsx]1 KB (206 words) - 17:46, 20 February 2019
- [[Media:FE-SEM_first_results.pdf]]==(Mamun/Marcy) Update on target thickness measurements==941 bytes (130 words) - 15:13, 13 February 2015
- 6) Fit-a-thon begins (Riad=Root, Marcy=Mathematica) applying Pade and Marty functions1 KB (176 words) - 12:41, 4 January 2017
- # (Daniel, Riad, Tim, Marcy) Corroborate the Lebow and FESEM measurements with foil rate measurements t2 KB (230 words) - 13:58, 19 November 2015
- 6) (STARTED) Fit-a-thon begins (Riad=Root, Marcy=Mathematica) applying Pade and Marty functions1 KB (190 words) - 17:08, 11 January 2017
- * vacuum chamber w/ small bread board => '''Marcy/Phil located ready in 1137'''1 KB (154 words) - 13:57, 6 October 2020
- #Marcy, find the y-chamber in UITF, have it degassed, recommend a pump configurati #Marcy investigate precision linear vacuum actuators...are there other options to3 KB (541 words) - 13:47, 6 June 2019
- 6) (WORKING) Fit-a-thon begins (Riad=Root, Marcy=Mathematica) applying Pade and Marty functions [[media:AoExtrapolation23Jan2 KB (214 words) - 14:54, 23 January 2017
- * Marcy - From last's meeting's post => [[media:21Feb2020Vacuum.xlsx]]2 KB (240 words) - 15:50, 24 March 2020
- ** (Tim, Marcy, Dan) Complete experimental asymmetry vs. target thickness for Runs I/II; s1 KB (199 words) - 13:08, 11 April 2016
- * Marcy is checking on metallized YAG screen w/ hole => ?1 KB (221 words) - 21:08, 22 January 2020
- ** Marcy's final list [[media:210209_ion pump names.xlsx]]3 KB (511 words) - 12:33, 22 February 2021
- ...took additional measurements; discussed preliminary action plan with Joe.G/Marcy and Phil. :Was put on hold yesterday ( Phil /Marcy prefers baking without clamp shell)7 KB (1,131 words) - 11:08, 11 January 2021