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Xiaochao Zheng, 01/14/2021 12:33 PM

Daily Reports

Jixie 9:04 PM
daily report 1/13/2021

A busy and tired day! At least our DAQ is ready to take beam with our own trigger!
  1. Start installation from 7AM. Finished installing detectors and cabling by 1PM
  2. Put the rack in the control room so no access needed for daq work. Our daq machines are also in the control room.
  3. David came to site. Help a lot in setting up computers. Xinzhan and I are working on detectors and daq cabling. Both desktops are online. CODA runs well.
  4. Operational Readiness Clearance (ORC) meeting started from 1 PM. Detectors are all good. However, JLab made VME cards were suggested to change fuse at the beginning...... After some long negotiation, we were requested to put kapton tape to cover the power interface. We also received some suggestions to run the experiment safely. We might get all signature by tomorrow
  5. We connected HV and signal cables to the patch panel. All PMT signals have been checked using an oscilloscope. All detectors work well. We do not have enough time to modify daq to take the FTBF trigger. FTBF has 3 channels for Cherenkov, none of them add into our FADC yet. (Need to find cable and do fan in fan out...) MWPC daq does not have a veto input, it can not take our busy status immediately. We have to form a new trigger then feed it. We will do this in the morning of Thursday.
  6. Accelerator is down. One magnet is not functioning. They are waiting for the radiation to cool down so they can fix it tomorrow morning. Beam might be available in the afternoon.
To do:
  1. Do FTBF controlled access leader training in Thursday morning 9AM
  2. MWPC daq is a well integrated machine (looks like a laptop). It does not provide L1A signal. We need to learn deep about this system to find out a possible way to take thrit L1A. We will then veto it using out busy status. Need to spend time here Thursday.
  3. connect cherenkov into our FADC.

Pictures under useful pictures with prefix 20200113_xx

Jixie 8:02 PM daily update 1/12/2021
  1. Took radiation practical training, both of Jixie and Xinzhan
  2. Met Lorenzo, have a long and deep conversation with him. He helped us setting up the gateway machine, which is soliddaq. Right now solidaq has 2 network interfaces, one of them is borrowed from FTBF. soliddaq can access the public network, it also serves as the gateway of the private network. Because IP forward function is not enabled, right now private network members can not access public networks yet. (I need help from an expert to enable this.)
  3. If you want to access to clrlpc, you have to access to solidaq using fermilab linux account, then ssh from soliddaq into clrlpc using a-compton account. If you want to do that, send me your fermilab username. I can add your username into the name lists that allows you to login soliddaq using a-compton account.
  4. David brought the hard drive and pcie to usb3.1 convert card here. Two 5T hard drive (2.5") were installed into the usb hub provided by Alex. Tested the data transfer speed. It can reach 130MB/s when the CPU is idle. Data transfer speed changes a lot when coda is running.
  5. JLab experts are working on DSC issues. The Fan-In-Fan-out module degrades the input signal too much, which is part of the reason that DSC lost signal. We borrowed one from FTBF. JLab experts are also checking and fixing the software. Right now we can see TDC in the output file. Alex is still working on it to make sure it does not lose data.
  6. David is working on ORC form.
Here is how we transfer data back to jlab:
  1. make a copy of data into soliddaq, this copy will also be our backup of all raw data
  2. sent data from soliddaq to jlab
To Do:
  1. The beam will be off by 6AM Wednesday. We will start installation from 7 AM. We aim to finish cabling and installation by 1 PM.
  2. ROC inspection is scheduled at 1 PM Wednesday. I will show in person. David will join remotely.
  3. The beam is scheduled to be delivered by 5:30 PM. Look forward to taking beam! (edited)
Jixie 9:03 PM daily report, 1/11/2021
  1. Put all our computers into a private network switch, use ip 192.168.1.x, reserve IP for the gateway. All computers can talk to each other. Still waiting for FTBF to provide a gateway. Talked to Evan and Lorenzo. They understanded our request and will set up one tomorrow.
  2. Rebooted vme crate.. The hostname 'intelvmeha8' came back. Start and stop coda smoothly, no need to manually start ROC2.
  3. DSC did not write data to the output file. Experts at Jlab are working on this.
  4. Talked to Evan about MWPC daq. Learned that we can easily take their trigger, which is SC1&SC2 (both stay at FTBF beam line). We decided to take the L1A signal from MWPC daq to be our trigger. In this way the events from our daq are already synchronized with MWPC daq. We will also put our SCs into the FADC, they just do not serve as triggers anymore. We will also plug Cherenkov signal into our FADC. We will also put a copy of MWPC daq's L1A into our TDC.
  5. David is preparing the ORC document
  6. Had a meeting with Lorenzo, we agreed to start shift at 8 AM|PM.
  7. install kerberos kit in clrlpc. We will not use it during data taking but can use it if needed. Only people with a Fermilab linux account can access it.
  8. taped the lead block.
_ To Do:_
  1. get a gateway
  2. solve DSC
  3. look at raw data file of MWPC daq, try to understand their daq
Jixie 10:15 PM daily report 1/10/2021
  1. pause daq data taking to test 3 preshowers. They are all good
  2. continued testing TDC configuration. Looked at TDC signal in raw data file. improving/updating coda and decode program under the guidance of Alex.
  3. taking cosmic data. right now daq machine clrlpc is offline
To Do:
  1. finish setting up private network
  2. tape the lead block
  3. practice sending data back to jlab
  4. take training on Tuesday

Updated by Xiaochao Zheng over 2 years ago · 16 revisions