diff --git a/docs/machine/mdm.md b/docs/machine/mdm.md index 5a055e6..494fc38 100644 --- a/docs/machine/mdm.md +++ b/docs/machine/mdm.md @@ -116,7 +116,7 @@ Minutes written by {{Felix}} ## 05/08/2026 **Participants:** -..., {{Felix}} +{{Lukas}}, {{Jonas}}, {{Rebecca}}, {{Micha}}, {{Cigdem}}, {{Masamitsu}}, {{Paolo}}, {{Simona}}, Marco, {{Alessandro}}, {{Masamitsu}}, {{Boris}}, {{Felix}} 1. **Introduction** @@ -155,59 +155,103 @@ Minutes written by {{Felix}} * Visitors from Diamond ({{Volker}}) * Zoom am Freitag mit Linac Experten von Diamond (Neven ist vor Ort) * Maschinenschicht Linac am Samstag, 15 August, ca. 9 bis 14 Uhr + * Startup of SLS and HIPA has Priority over SwissFEL next week - * **Linac/LTB Optimization** by {{Volker}} - * ... + * **Linac/LTB Optimization** by {{Lukas}} + * Startup on Friday - * **Booster/BRTL Optimization** by {{Jonas}} - * ... - * **Storage Ring Optimization** by {{Masamitsu}} - * ... + * Michael prepares corrector corrections for startup with data from Karsten expected on Thursday * **RF** by {{Lukas}} - * **Linac** * **Booster** + * Tests starting tomorrow (modifications on control and interlock system) * **Storage Ring Main RF** + * Tests starting Friday (tunnel sector not yet available) + * Failures of ECMC servers due to network + * Failure of SSA safety controller + * Tests of spare parts + * Restart to nominal conditions in time should be feasible * **Super-3HC** + * cold + * tuning tomorrow * **Pulsed Magnets** by {{Martin}} - * ... + * work ongoing for protective covers installation in tunnel * **Impedances and MBFB kickers** by {{Micha}} - * ... + * fast ion instabilities to be expected for startup + * recommendation: multiple gaps, e.g., 2 equally distributed 30 bucket gaps, {{Alessandro}} needs to check 3HC * **Diagnostics** by {{Cigdem}} - * ... + * ICT in LTB has been replaced + * Karsten checked if BPM remains aligned, small error with respect to documented value from 2017 identified and corrected + * PCTs + * Old 125 MHz ADC system now off and to be removed, only new crates with 1 Mhz ADC running + * Waldemar took over FW, back on 10th + * Connection to BDC not yet available/tested, i.e., should be bridged for startup + * Interface to RF is there on same fiber connection, should be order of magnitude less noisy + * Main current PVs remain unchanged + * All BLMs now replaced with light tight cable jacket * **Feedbacks and BPMs** by {{Boris}} - * ... - - * **Timing** by {{Romain}} - * ... + * New X-Ray BPM optimized for fast RF response tested with DBPM3 electronics succesfully with 12 keV photons + * 100 nm noise + * beam spectrum agrees well with RF-BPM connected to same electronics + * to be installed permanently in straight X04 for further tests parasitically during beamline commissioning + * Working on improving CBI detection + * RFSoC with 1 interleaved channel now replaced with using all 8 channels enabling direct sampling + * currently 8 turns, next step: 100 ms of post mortem raw data + * next step: remove i-tech frontends and use raw beam data * **ID Feed Forward** by {{Masamitsu}} and {{Simona}} and {{Dirk}} - * ... + * data for setting up optics FF is taken, HLA is prepared + * New FF tables to be measured + * X09LA U70 + * X06 U17 + * ID corrector magnets should be ready + * clear for X06 + * for X09 Marco will double check + + * **Radiation Protection** by {{Rebecca}} + * PX-I needs new first light shift for new U17 ID as if never had permit + * Also First Light: XIL (still waiting for answer from BAG), OPTICS * **Shift Summaries** - * + * X07 UE38 decoupling using only local skew quadrupoles {{Jonas}} + * UE38 is assumed to be thin skew quad and model based the setpoint for matchinng quads is derived + * open gap LT 4.4 h, closed gap 3.6h, closed with compensation 4.0 h + * impact on beam size also well compensated + * TbT data as function of beam current for standard filling pattern {{Jonas}} + * decoherence changes a lot + * RF group confirms that the impedance and 3HC are both expected to contribute to changing decoherence + * Single bunch measurements {{Alessandro}} + * scanned current and main RF voltage vs bunch length and arrival time, estimating MC, + * RF-LOGs 2293 2294 + * more data and measurements required for final results + * generally larger values than design observed, too early for numbers + * Test of new corrector magnet FW on one magnet {{Boris}} + * 10 kHz more signal BW for correctors + * PID replaced by model based FF (requires individual calibration for each power supply) + * Next test: roll out FW to multiple corrector magnets, maybe all correctors next shutdown 3. **Shift Requests** | **Time** | **Description** | **Who** | | :------- | :------------------------------------------------------ | :------------------------------------------- | - | 2 hours | Operator Training | {{Felix}} | + | 8-10h | Operator Training | {{Felix}} | | 4 hours | Operator Startup | {{Felix}} | - | 2 hours | Investigate tune feeedback drift | {{Masamitsu}}, {{Felix}} | - | 2 hours | Investigate injection drifts | {{Martin}}, {{Felix}} | - | 4 hours | implement ID Optics Feed Forward | {{Masamitsu}}, {{Felix}} | - | 3 hours | test cooling PLC upgrade | {{Lukas}} | + | 4 hours | check movable power dividers of linac with beam (Felix calls Paolo as soon as startup is done) | {{Fabio}}, {{Paolo}} | | 8 hours | test timing | {{Romain}}, {{Felix}} | - | 4 hours | check movable power dividers of linac with beam | {{Fabio}}, {{Paolo}} | + | 2 hours | Investigate tune feeedback drift | {{Masamitsu}}, {{Felix}} | + | 4 hours | implement ID Optics Feed Forward | {{Masamitsu}}, {{Felix}} | + | 2 hours | measure feed forward X06 U17 (not wednesday evening) | {{Simona}} | | 8 hours | thorough linac setup | {{Volker}}, {{Felix}}, Neven | - | 10-17h | 14.8. for BPM firmware upgrade (trying to fix the FOFB fiber link issue as needed to get a fast orbit interlock) | {{Boris}}, {{JonasP}} | - | 11-22h | 25.8. test of new ring corrector power supply firmware ({{HansJ}} has time from 11-22h), as needed to reach > 1 kHz FOFB 0dB point and better suppress 50 and 90 Hz perturbations & improve general FOFB stability. | {{Boris}}, {{HansJ}} | + | 13-17h | 14.8., 4 hours, for BPM firmware upgrade (trying to fix the FOFB fiber link issue as needed to get a fast orbit interlock) | {{Boris}}, {{JonasP}} | + | 13-16h | 25.8. test cooling PLC upgrade | {{Lukas}} | + | 16-22h | 25.8., 6 hours, test of new ring corrector power supply firmware ({{HansJ}} has time from 11-22h), as needed to reach > 1 kHz FOFB 0dB point and better suppress 50 and 90 Hz perturbations & improve general FOFB stability. | {{Boris}}, {{HansJ}} | + | 2 hours | Investigate injection drifts | {{Martin}}, {{Felix}} | Minutes written by {{Felix}}