Logbook Camera-Works-Mirca-August-September2018

Enter comments in reverse time order

Date	Who did it?	Action	Comments	Documents
2018-08-30	Yuji, Seiya, Shunsuke	DragonQC	We did Dragon QC column by column yesterday concerning about column 6,8,9,10,11, in which there are more bad modules then others. Today we checked these all summary plots. High cross talk problem disappeared. About 2 modules(ID 1-63,1-72) cross talk was a bit high, but it seemed this result was not a big problem. Almost all of modules we used yesterday were shown broad noise distribution. About one modules(ID 1-45) it showed bad cell linearity. This result was shown for the third time with the same module, This Dragon may have some problem.	Media:noise1_20180830.JPG Media:noise2_20180830.JPG Media:celllin_20180830.JPG
2018-08-30	Yuji, Seiya, Shunsuke	Dark box	We finished assembling a dark box. So we can now apply HV with modules in the dark box.	Media:DSC_1533.JPG Media:DSC_1534.JPG Media:DSC_1535.JPG
2018-08-30	Gustavo, Carlos	Counters check	We checked the PPS, clock cycle and trigger number in the data stream using the legacy DAQ, in order to check signal distribution from BP to Dragon. No problem found, and all modules are properly synchronized. The only remark that has to be done is that in about 1% of Dragons, 10 MHz clock cycle counter was not updated in a first run while the back plane was counting it, and was solved after resetting all modules.
2018-08-30	Gustavo, Carlos , Seiya, Shunsuke, Yuji	Visual inspection of modules	We performed a visual inspection of modules failing n the connectivity test. We found one mezzanine with a problem in the polarization of L1 input. Another two modules were inspected and are kept out of the camera because one of the does not fully pass the Dragon QC, and the other has a faulty mechanical module assembly, to be fixed.	Media:DSC_1527.JPG
2018-08-29	Gustavo, Carlos, Seiya, Shunsuke, Yusuke, Yuji	Data taking with HV for investigation of "undershoot" problem	After we covered the frontal part of the camera by white board and turn off room light, we applied 1000V with only 1 module(all pixel) and took some data. The light source we used was LED which Gustavo and Carlos bought at the shop yesterday and we used a pulse generated circuit developed by Yusuke. We set L1 local trigger synchronized with internal clock(133 MHz) and adjusted trigger delay in Dragon FPGA, so we can see pulse in ROI. The pulse width was a bit wide(~25ns), but we could not see "undershoot" for quick check. Now analysis is on going.	Media:DSC_1517.JPG Media:mod101_HV1000_LED.JPG
2018-08-29	Gustavo, Carlos	BP Clock phase calibration	Using the test pulse and CIEMAT software, we manage to measure the latency of trigger distribution for all the camera with setting calibrated at IFAE. We find that the latencies are uniform except for some modules due to differences in the distribution routes between IFAE and Mirca camera setups. Making use of this we were able to adjust the clock phases in the whole camera. The issue seen at IFAE with the clock phase calibration is understood and solved. Current setting can be used as default for data taking, keeping in mind that they are wrong for few modules, until we perform a new calibration a ORM with the calibration box. We will produce configuration files with these settings for ClusCo.
2018-08-29	Yusuke, Yuji	Assembly of new module	We assembled new 3 modules by using some parts which Shunsuke and Seiya brought from Japan.
2018-08-28	Seiya, Shunsuke, Yusuke, Yuji	Dragon QC	We summarized Dragon QC results. Concerning about some "bad QC" modules, we did DtragonQC again. We could not even take any data with only one module(IP10.1.6.13), it seemed socket connection was lost again and again.	Media:DragonQC20180828.pdf
2018-08-28	Seiya, Yusuke, Yuji	Changing Bad dragon	We replaced the dragon board of bad modules (1-58, 2-71, 2-52). and We re-assembled modules which were arrived from CIEMAT.
2018-08-28	Yusuke, Yuji	Building the dark box	The wooden plate was painted with a black. Current status: 95% done.
2018-08-28	Gustavo, Carlos	Connectivity test	Connectivity test is finished. Almost all connections are ok, except for the ones that cannot be tested due to mezzanine issues. Three mezzanines don't produce L1. One module keep the L1 always high with our settings (IP 10.1.5.19). Another module has strange behaviour for one L0 neigbour (to be checked in detail, IP 10.1.5.174 or neigbour)
2018-08-27	Seiya,Shunsuke	Data taking for investigating an undershoot problem	We took test pulse data with internal clock, test pulse trigger for investigating an undershoot problem. For quick check, we could not see undershoot. We are going to analyze it more deeply tomorrow.
2018-08-27	Seiya,Shunsuke	Dragon QC data check	We checked the all data of Dragon QC. We found some problems. Some modules did not finish QC procedures, it caused from a threshold in the script. And it seems that cross talk result is strange. We are going to investigate the reason of that later.
2018-08-27	Yusuke,Yuji	Building the dark box	Current status: 70% done.
2018-08-27	Gustavo, Carlos	Connectivity test	We run the ip search, neighbours search and l0 connection test. We found all the ips, and localize the position of all modules. In addition we find three of the four l1 faulty mezzanines. We need to understand some features of two modules regarding the connectivity test results, and what is the fault mode of one of the mezzanines with failing l1. The rest of connections tested so far are ok. A document is coming soon.
2018-08-23	Riccardo, Carlos, Miguel, Tony, Daniel K, Shunsuke, Yuji	Module Installation	We installed 65 modules (from column 6 half to column 1) to the camera. In total 265 modules were installed. We found about 15 mezzanine problems and 12 Light Guide problems. Light Guides were fixed by Yuji, then those 27 modules were installed. We have to pull out modules to fix the problem later. We finished installing modules for the next test. We succeed to power on the full camera at once, and to ping to all modules and read out BP firmware and temperature from all modules. For the optical fiber problem, Osaka can not communicate with all modules. then Dragon QC was not performed yet.	https://drive.google.com/open?id=1DdRUGOgVrMz2Pivtg7P4Zre2Va-aYO1C
2018-08-22	Riccardo, Daniel K, Shunsuke, Yuji	Module Installation	We installed 94 modules (from column 12 to column 6 half) to the camera. In total 200 modules were installed. For 35 modules (from column 9 to column 10), we tried performed sanity and connection test. We were able to ping all modules, then we could read firmware and tempaature for all modules. About Dragon QC, for the fiber problem, we could communicate with only 7 modules. Results were fine.	https://drive.google.com/open?id=1DdRUGOgVrMz2Pivtg7P4Zre2Va-aYO1C
2018-08-21	Riccardo, Carlos, Miguel, Tony, Daniel K, Shunsuke, Yusuke, Yuji	Module Installation	We installed 98 modules (from column 18 to column 12) to the camera. In total 106 modules were installed. For 89 modules (from column 19 to column 13), we tried to perform sanity and connection test. We were able to ping all modules, then we could read firmware and tempaature for all modules. At first look, L0 and L1 scans went fine, but deeper investigation needed. About Dragon QC, results were fine. However only for 2 modules, Dragon QC has stopped in the middle. for column12, we will perform the test tomorrow. We also found 2 data optical fibers through which we could not communicate with the modules, we used the one spare optical fiber we have and we replaced the second one with the optical fiber for the UCTS.	https://drive.google.com/open?id=1DdRUGOgVrMz2Pivtg7P4Zre2Va-aYO1C
2018-08-20	Shunsuke	Brief check of Mezzanine	checked sanity of the Mezzanine for 3 rack = 57 modules and more. I found 9 more mezzanine missing parts. In 9 mezzanines, some strange mezzanine found. It was L0 ASIC not covered by material, missing parts and fixed without parts? And a small parts was soldered with strange angle. See pictures.	https://drive.google.com/open?id=1G_3LFysZG-ia6awGCnLEbGedMsC1UVvI
2018-08-20	Carlos, Daniel K, Shunsuke	Test of the traveling modules	1-58 and C008.140_02 were transported from IFAE in the camera. So we checked the effect of travel. We did L0 rate scan, L1 rate scan with test pulse and Backplane resistor reading. Daniel and Shunsuke confirmed a consistency of result of the test to one took in IFAE. These were fine. But one of the mezzanine's pin was bend. It means the bend pin does not effect with communication.	https://drive.google.com/open?id=1jBe10SAx17wu7F7rRw-qSGyjg6ZwLde7
2018-08-20	Riccardo, Carlos, Miguel, Tony, Daniel, Shunsuke, Yusuke, Yuji	Module Installation for Column 19th	We started install modules to camera, with confirming procedures one by one. Procedures start from powering on generator, power supply, camera, and modules proceed to preparing of PMT modules. Then we discussed about procedures, we check again tomorrow. Today we finished to install 1st column (col19th), without some tests for checking communications.	https://drive.google.com/open?id=1DdRUGOgVrMz2Pivtg7P4Zre2Va-aYO1C
2018-08-20	Yusuke, Yuji	LG assembly	Assembled 59 modules. In total 268 modules were assembled. last 2 modules will not be installed to camera. So these were not assembled. Basically, this work has done.
2018-08-17	Daniel K, Shunsuke	Dragon QC for checking Dragon	For checking a sanity of Dragon board, I tried to perform Dragon QC by my PC. But it was failure. So I connected Dragon (2-128) to Osaka directly (through em3), execute QCDaq.sh. It was performed fine. It has not analysed yet.	https://drive.google.com/open?id=1qZn6j4hAUSn2enz7DvvBQ3rBdhGzwVOd
2018-08-17	Carlos, Miguel, Tony, Daniel K, Shunsuke	Camera opening	Carlos, Miguel and Tony were arrived. We have cleaned up around the camera. After that, they removed materials from a camera transport structure. We can access the both side of the camera now.	https://drive.google.com/open?id=1jBe10SAx17wu7F7rRw-qSGyjg6ZwLde7
2018-08-17	Toko, Daniel K, Yusuke, Shunsuke, Yuji	Assembly LG to PMT module	assembled 76 modules. 2 or 3 mezzanines had a problem in each racks, and we found that missing a capacitor and an inductor on Mezzanine. This may be a pretty problem. Those parts should be soldered. In total 209 modules were assembled. And Al plates for transportation were all removed from modules. So we can attach a new LG to the module immediately.	https://drive.google.com/open?id=1nQkuRGRz-w8eayIwtCO98NLbOyxmQN4Y
2018-08-16	Toko, Daniel K, Yusuke, Shunsuke, Yuji	Assembly LG to PMT module	assembled 76 modules. This corresponds to four module racks. 2 or 3 mezzanines had a problem in each racks, these problems have fixed by Daniel. In total 133 modules were assembled.
2018-08-15	Toko, Daniel, Yusuke, Shunsuke, Yuji	Assembly LG to PMT module	assembled 52 modules. 11 mezzanines has pins problems. After Daniel was arrived in Mirca, these problems have fixed by him. The modules were covered by plastic bag. The pictures are in the following web.	https://drive.google.com/open?id=1nNdVpm95B9fIDlFu7MplnQDmV4I2afrc
2018-08-14	Toko, Yusuke, Shunsuke, Yuji	Assembly LG to PMT module	assembled new LG for 5 modules. during that works, we found 2 problematic things. At first, scree for fixing modules to module molder was fall out. (see the link.) and another, broken connectors of the mezzanine. some pins bend like pictures. we checked about 20 modules, problems were found in 5 modules.	https://drive.google.com/open?id=1nNdVpm95B9fIDlFu7MplnQDmV4I2afrc
2018-08-14	Toko, Yusuke, Shunsuke, Yuji	Picking up Mr. Yamamoto	also went to buy a staff for LG assembly. Alcohol for wiping cathode plane.
2018-08-14	Yusuke, Shunsuke, Yuji	Preparation for Light Guide assembly	Opened transportation boxes of LG, and moved them in the clean room.
2018-08-14	Yusuke, Shunsuke, Yuji	Building a Big Black Box	Assembled side panels to flames of the dark box, 50 % panels were assembled until now.
2018-08-13	Yusuke, Shunsuke, Yuji	Shopping staffs for Light Guide assembly	went to buy the materials for a clean room, It will be used in LG assembly. Staffs are, e.g., table, chairs, and clean suits.
2018-08-13	Yusuke, Shunsuke, Yuji	Building a Big Black Box	Assembled the black box which used in IAC for module QC. We finished almost whole part of frames, but we need additional screws for it.
2018-08-13	Yusuke, Shunsuke, Yuji	Unpacking of transportation boxes for PMT modules	PMT modules have delivered to Mirca by wooden boxes, and it was fixed by screws. We finished dismounting these screws from boxes. we can use all modules without another preparation.
2018-08-08	Patricia Marquez	Camera, chiller and the modules arrived in Mirca