VUVProjectsPlanning

Update September 2024 - joint XAMS project

Projects	DRI	Main dependencies	Status	Finish by
Finalise reflectivity measurements of DUNE cryostat components	Marjolein/Vikas/Corryenne			Oct 2024
Fluorescence measurements in VULCAN	Anna
Delayed electrons and g1 in XAMS	Joost
Calibration of XAMS	Noor
Reflectance of DUNE cryostat components	Corryenne			June 2024
Measure time stability of D2 lamp intensity
Determine effect of exposure to radiation on fluorescence of plastics

Task - hardware	DRI	Dependencies	Status
Design SiPM holder for fluorescence measurements	Anna	Reflectivity study finished
Set up and test cooling system for samples, SiPM	Anna
Fully reconfigure VULCAN for fluorescence measurements	Anna	cooling system and SiPM holder ready
Test if signal from S13360-6050-PE is good with current VULCAN read-out board - if not, work with ET to design new circuit - also use Hamamatsu board and compare	Anna/Joost
Test how signal from S13360-6050PE degrades when connected over a long cable as will be the case in XAMS - decide if we need pre-amplifier inside XAMS - together with ET	Noor/Joost
Procure SiPM read-out board - 4+ channels, S13360-6050PE/CS SiPMs - from ET, possibly a total of 4 or so if economic	Anna/Joost	Previous SiPM test results
Install and test 16-channel digitiser for XAMS	AP/Maricke	XAMS test run finished?
Set up XAMS to start a run	Tobias
Measure rest-gas composition in XAMS	Noor
Measure outgassing from PTFE	Noor
Re-design the guts of XAMS to include SiPM readout of a possible fluorescence signal (new PTFE sleeve). Ask advice from Marieke and from Oscar (from MT). Come up with a proposal.	Joost/Noor

Task - software/analysis	DRI	Dependencies	Status
XAMS MC - simulate calibration sources, g1 expectation	AP/?
VULCAN MC - simulate photon paths/coverage fraction of SiPMs	Anna
Based on XENON1T/nT data, calculate possible PTFE fluorescence efficiencies and compare to sensitivity achievable in VULCAN	Pranati
Analyse data from XAMS. Ask Carlo for help
Analyse data from VULCAN. Ask Marjolein for help

Planning XAMS run	What	Who
Friday 27-09-2024	RGA measurement GXe filling Start cooling	Noor Tobias Joost Anna
Monday 30-09-2024	LXe filling	Noor Tobias Joost Anna Maricke
Tuesday 01-10-2024	LXe filling Lifetime measurement + analysis explanation/training LED calibration + analysis explanation/training	Noor Tobias Joost Anna Maricke
Wednesday 02-10-2024 - Friday 04-10-2024	LED afterpulse measurements	Maricke
Monday 07-10-2024	To be determined
	...
	...
No later than 25-10-2024	Recuperation	Noor Tobias Joost Anna Maricke (depends on the date)

Vacations, Meetings, and general availability of people

General:

Tina:

AP:

• Working from home in Sept.

Marjolein:

• Working from Bern from 18 to 24 September
  

Vikas:

Pranati:

• On shift at LNGS 8th - 28th October

Anna (MSc, Sept 2024 - July 2025):

• Lectures Wednesday 9-11 (only for September and October)
• Lectures Thursday 9-11 (only for September and October)
• Lectures Monday 15-17 (only for September and October)

Joost (MSc, Sept 2024 - July 2025):

• Lectures on Monday 9-11

Noor (BSc internship, Sept 2024 - Jan 2025):