Si PM tester update Balazs Ujvari Debrecen 08

Si. PM tester update Balazs Ujvari Debrecen 08. 2018.

Plans • Mass tester • Less attention from the users, almost no manual steps • Precision at 5 m. V scale • IV and SPS teste to compare everything at first 10 k test • To understand the company, IV, SPS values • Write a paper • At first test next January, 2 testers have to be at BNL • Involve local and other students (Can Nathan send students? )

Mass tester • 4 x 4 for SPS (right) • Springs, preamp, main amp • Relays, thermometers • 4 x 4 for IV measurements (down) • Relays, thermometers

Precision table (inside the black box) • Found a company • SPS PCB • IV PCB • 13 x 13 trays • Vacuum pipes • Optical cables

Sorting (? ) • Same order • Sort in trays • Based on • Vop + gain • Same system • 3 trays sorting

Minimize the noise, temperature control • One box for measuring and another for • • • PS LED pulser Redpitaya Dedicated computer … • PCB to have less cables

Precision: 5 m. V • Hamamatsu HV was not for scan, 5 s needs to change the HV • It’s precision (from manual) • We will use NI PXI-4135 (or PXI-4132) source meter unit • Will be recalibrated in January • Calibration bench is in Debrecen • If black box is temperature controlled • 14 m. V + 2. 5 m. V is the accuracy • Current will be measured p. A precision

Precision: 5 m. V • First tests are done • Calibrate PXI-4135 with • • PXI-4071 DMM It will be recalibrated in January It’s precision is 1. 6 m. V in the next 90 days SMU is 16 m. V SMU + DMM is 1. 6 m. V

Hamamtsu HV -> SMU • We will use the SMU as HV for IV scan (fast, we need 1000 HV points) • Even for SPS measurement (5 -11 points were use), because SMU is there we just have to do the cabeling. • Therefore SPS and IV will be measured one by one

Measurement time • Only estimation, since new pulser must be faster, but worst case: • SPS 10 mins / 16 Si. PMs • IV 1 mins / 16 Si. PMs User place a full tray 169, close the box, wait for temperature stabilization Robot place the first 16 into SPS (1 -2 mins) measure SPS 10 mins Place into IV (1 -2 mins) measure SPS (1 mins) Move to the other 13 x 13 tray (1 -2 mins) 20 mins / 16 Si. PM, 220 mins, 4 hours to finish one tray and open the box again (we can use camera to be sure about Si. PM orientation) • 2 -3 -4 trays can be tested (10 k / 42 days = 240 Si. PMs / 1. 5 trays) • • •

Why 2 tester? • We can bring a second full setups without NI components • PXI Chassis, SMU, DMM about 15 -20 k$ • We just borrow them (win-win for the first test, but after it perhaps we have to buy) • There can be problem with robot, our DAQ, PCB, no time to replace, but NI can deliver anytime new stuff. • Do you have similar components to set together the second device and finish the test with 2 full setup? • I can bring one or two students they are working on this PCB and DAQ.