MPS Minutes 20220120 - Revision history

Lennarz: /* FLASH/Darklight effect on MPS */

2022-01-21T00:42:19Z

FLASH/Darklight effect on MPS

← Older revision		Revision as of 00:42, 21 January 2022
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	*Email from Luca Egoriti last week: hoping to put beam on the FLASH station (the old EMBD dump) as soon as the e-linac is back in shape, and since the shielding envelope has changed we foresee higher dose rates in the ehall coming from the target/dump. Hence, we wanted to let you know since there might be some MPS work to be done to accommodate the modifications		*Email from Luca Egoriti last week: hoping to put beam on the FLASH station (the old EMBD dump) as soon as the e-linac is back in shape, and since the shielding envelope has changed we foresee higher dose rates in the ehall coming from the target/dump. Hence, we wanted to let you know since there might be some MPS work to be done to accommodate the modifications
	*Recommissioning required for medium and high energy section.		*Recommissioning required for medium and high energy section.
	*1kW for FLASH dump in pulse mode~~. 1W~~ in continuous mode. There might be extra room for BLM thresholds ==> AL to follow up with Luca E.		*Power limits for FLASH dump? 1kW for FLASH dump in pulse mode? 200W in continuous mode. There might be extra room for BLM thresholds ==> AL to follow up with Luca E.
	*original dump design was for 500W ?		*original dump design was for 500W ?

Lennarz: /* Action Items */

2022-01-21T00:39:02Z

Action Items

← Older revision		Revision as of 00:39, 21 January 2022
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	**Final status of implementation?		**Final status of implementation?
	**What is left to do/needed?		**What is left to do/needed?
	*~~Do all channels already have an HV OK? Do some still need~~ to ~~be added to watchdog?~~		*AL to take recommissioning scans in medium and high energy section, once beam is back.

Lennarz: /* Action Items */

2022-01-21T00:38:05Z

Action Items

← Older revision		Revision as of 00:38, 21 January 2022
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	==Action Items==		==Action Items==
	*AL to follow up with Luca E. on power levels for FLASH dump.		*AL to follow up with Luca E. on power levels for FLASH dump.
			*AL to send out document for view screen/BLM interlock requirements/specs
	*AL to implement comments for BLM calibration requirements/specs document and send out to reviewers		*AL to implement comments for BLM calibration requirements/specs document and send out to reviewers
	*MA: What SiPMs and or PMTs are we looking to buy?		*MA: What SiPMs and or PMTs are we looking to buy?

Lennarz at 00:37, 21 January 2022

2022-01-21T00:37:14Z

← Older revision		Revision as of 00:37, 21 January 2022
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	Meeting adjourned: 10:36am		Meeting adjourned: 10:36am
	Present: HH, MA, KL, RN, MR, RC, AD, AL		Present: HH, MA, KL, RN, MR, RC, AD, AL

			==E-Linac status==
			*Unclear when beam will be back.
			*What are priorities once beam is back? FLASH station?
			*Hoping for more information in Friday meeting

	==BLM calibration==		==BLM calibration==

Lennarz at 00:36, 21 January 2022

2022-01-21T00:36:12Z

← Older revision		Revision as of 00:36, 21 January 2022
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			Meeting commenced: 10:00am
			Meeting adjourned: 10:36am
			Present: HH, MA, KL, RN, MR, RC, AD, AL

	==BLM calibration==		==BLM calibration==
	*AL preparing documents for requirements and specs		*AL preparing documents for requirements and specs

Lennarz at 00:35, 21 January 2022

2022-01-21T00:35:12Z

← Older revision		Revision as of 00:35, 21 January 2022
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	*MA: What SiPMs and or PMTs are we looking to buy?		*MA: What SiPMs and or PMTs are we looking to buy?
	*Fibre coupler: MA will try to get drawings from manufacturer for 3D printing option		*Fibre coupler: MA will try to get drawings from manufacturer for 3D printing option
			*MA to check with Phil L. if all parts are available for BL4N LICs.
	*2nd stage trip implementation:		*2nd stage trip implementation:
	**Final status of implementation?		**Final status of implementation?
	**What is left to do/needed?		**What is left to do/needed?
	*Do all channels already have an HV OK? Do some still need to be added to watchdog?		*Do all channels already have an HV OK? Do some still need to be added to watchdog?

Lennarz at 00:34, 21 January 2022

2022-01-21T00:34:28Z

← Older revision		Revision as of 00:34, 21 January 2022
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	*Needs to be done at reasonable background levels, i.e., not with high dark current conditions from cavities.		*Needs to be done at reasonable background levels, i.e., not with high dark current conditions from cavities.
	*Should this go hand in hand with scan to verify coverage after a long shut down period?		*Should this go hand in hand with scan to verify coverage after a long shut down period?
	*Add flow chart		*Add flow chart for sequence of events
			*AL to implement comments for BLM calibration requirements/specs document and send out to reviewers
			*Add requirements: For instance, beam needs to be off for calibration, cavities off => procedure during downtime
			*Add Rod, Alex and Brandon as reviewer, Mike for final approval
			*Make sure to define times precisely
			*Use 2 calibration points for PMTs to verify linearity

	==View screen / BLM interlocks for tuning==		==View screen / BLM interlocks for tuning==
	*AL preparing documents for requirements and specs		*AL preparing documents for requirements and specs
	*Is table ~~and requirements enough? Or what~~ should ~~document look like?~~		*Add requirements and table
			*6-7 VS with 1 or 2 BLMs to be prevented from tripping
			*Be clear on definition of "disabled". Trip function should be disabled, but readback must be available.

	==FLASH/Darklight effect on MPS==		==FLASH/Darklight effect on MPS==
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	*1kW for FLASH dump in pulse mode. 1W in continuous mode. There might be extra room for BLM thresholds ==> AL to follow up with Luca E.		*1kW for FLASH dump in pulse mode. 1W in continuous mode. There might be extra room for BLM thresholds ==> AL to follow up with Luca E.
	*original dump design was for 500W ?		*original dump design was for 500W ?

	~~==2nd stage trip implementation==~~
	*Final status of implementation?
	*What is left to do/needed?

	==Fibre==		==Fibre==
	*~~Do we have~~ PMT?		*MA in contact with Hamamatsu on lead times for PMTs. Seem to be around 2-3 months.
	*~~What SiPMs are we looking~~ to ~~buy?~~		*2 PMTs may be available from Conny
			*Thomas Lindner took his PMT back end of 2021
			*Thomas L. had factory/of-the-shelve fibre coupler. We may need 3D printed coupler and just buy connector. HH thinks this is possbile. Have 3D printer with black plastic available for use.
			*MA will try to get drawings from manufacturer

	==AOB==		==AOB==
			*Making LICs for BL4N once cases are down a bit
			*HH offers to be around when Phil L. shows AL and MA how to manufacturer LICs. Possible option to make the LICs in electronics shop.
			*MA to check with Phil L. if all parts are available.
			*Do we have enough for full length of tunnel?
			*Might make longer LICs depending on required position resolution
			*Tricky part might be the end caps to seal Argon connections.

			==Action Items==
			*AL to follow up with Luca E. on power levels for FLASH dump.
			*AL to implement comments for BLM calibration requirements/specs document and send out to reviewers
			*MA: What SiPMs and or PMTs are we looking to buy?
			*Fibre coupler: MA will try to get drawings from manufacturer for 3D printing option
			*2nd stage trip implementation:
			**Final status of implementation?
			**What is left to do/needed?
	*Do all channels already have an HV OK? Do some still need to be added to watchdog?		*Do all channels already have an HV OK? Do some still need to be added to watchdog?
	*Making LICs for BL4N once cases are down a bit

Lennarz: /* FLASH/Darklight effect on MPS */

2022-01-21T00:23:41Z

FLASH/Darklight effect on MPS

← Older revision		Revision as of 00:23, 21 January 2022
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	==FLASH/Darklight effect on MPS==		==FLASH/Darklight effect on MPS==

			*Darklight and FLASH installation complete
	*Email from Luca Egoriti last week: hoping to put beam on the FLASH station (the old EMBD dump) as soon as the e-linac is back in shape, and since the shielding envelope has changed we foresee higher dose rates in the ehall coming from the target/dump. Hence, we wanted to let you know since there might be some MPS work to be done to accommodate the modifications		*Email from Luca Egoriti last week: hoping to put beam on the FLASH station (the old EMBD dump) as soon as the e-linac is back in shape, and since the shielding envelope has changed we foresee higher dose rates in the ehall coming from the target/dump. Hence, we wanted to let you know since there might be some MPS work to be done to accommodate the modifications
	*Recommissioning required for medium and high energy section.		*Recommissioning required for medium and high energy section.
			*1kW for FLASH dump in pulse mode. 1W in continuous mode. There might be extra room for BLM thresholds ==> AL to follow up with Luca E.
			*original dump design was for 500W ?

	==2nd stage trip implementation==		==2nd stage trip implementation==

Lennarz: /* BLM calibration */

2022-01-21T00:07:50Z

BLM calibration

← Older revision		Revision as of 00:07, 21 January 2022
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	*Needs to be done at reasonable background levels, i.e., not with high dark current conditions from cavities.		*Needs to be done at reasonable background levels, i.e., not with high dark current conditions from cavities.
	*Should this go hand in hand with scan to verify coverage after a long shut down period?		*Should this go hand in hand with scan to verify coverage after a long shut down period?
	*		*Add flow chart

	==View screen / BLM interlocks for tuning==		==View screen / BLM interlocks for tuning==

Lennarz: /* BLM calibration */

2022-01-20T17:49:10Z

BLM calibration

← Older revision		Revision as of 17:49, 20 January 2022
Line 1:		Line 1:
	==BLM calibration==		==BLM calibration==
	*AL preparing documents for requirements and specs		*AL preparing documents for requirements and specs
			*Needs to be done at reasonable background levels, i.e., not with high dark current conditions from cavities.
			*Should this go hand in hand with scan to verify coverage after a long shut down period?
			*

	==View screen / BLM interlocks for tuning==		==View screen / BLM interlocks for tuning==