Minutes of the forward endcap EMC eZuce SRN meeting, 19th of June 2017, 14:00-14:30

Presence:

• Basel: Werner
• Bochum: Cathrina, Claudius, Fritz-Herbert, Matthias, Malte, Miriam, Tobias T.,Tom
• Bonn: Christoph
• Groningen: Myroslav
• Stockholm: -
• Uppsala: Pawel
• Giessen: excused
• GSI: -

Beam time at KVI:

• Myroslav offered short term beam time at KVI for proton irradiation tests of light pulser and THMP components (done on June 28th/29th)
• More KVI proton beam tests foreseen (Pawel: Versatile Link components, Giessen: Barrel crystals)

VPTT capsules:

• Problems with mountability of recovery LED cut out VPTT capsules
• Thinking of 4 crystal-plastic-spacer to replace capsules of 4 crystals each
• In the meantime the problems turned out to be caused by bad manufactured VPTT capsules - there have been similar problems with the APD capsules which led to a new production run back then, in case of the VPTT capsules the faults are less obvious
• Sorting out the bad capsules allows going back to the original design, even cut out for recovery LED no longer needed