Difference between revisions of "Data Acquisition System and Triggers"
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* The IP address of the 2-chan scope is 129.57.164.37 or hascope1. | * The IP address of the 2-chan scope is 129.57.164.37 or hascope1. | ||
* Both scopes are also accessible in observer mode if you type in the IP address in the browser. | * Both scopes are also accessible in observer mode if you type in the IP address in the browser. | ||
| + | * The following inputs are plugged into the 4-chan scope: | ||
| + | {| border="1" | ||
| + | !Channel!!Signal | ||
| + | |- | ||
| + | ||1||S0 | ||
| + | |- | ||
| + | ||2||S2 | ||
| + | |- | ||
| + | ||3||GC | ||
| + | |- | ||
| + | ||4||S0&S2 | ||
| + | |- | ||
| + | |} | ||
Revision as of 14:54, 1 December 2017
Overview
Vince's detailed Writeup about HRS (some information is outdated for tritium)
Trigger Checkout Plan
Step 1
- Use remote scopes with inputs S0 (from FIFO), S2 (from FIFO), GC (from FIFO), S0&S2 (from Logic Unit) and S0||S2 (from Logic Unit)
- Verify that the S0 and S2 signals are as they should be (see picture (needs to be added!!!))
- Verify that the S0&&S2 signal is within the GC signal with the desired time distance (see picture (needs to be added!!!))
- Verify that the S0||S2 signal is within the GC signal with the desired time distance. Take also into account the extra cable delay from the S0|S2 logic unit to the (S0||S2)&&GC logic unit (see picture (needs to be added!!!))
- NOTE: The S0&&S2 and S0||S2 times could be also estimated from the S0 and S2 signals with the known delays from the trigger schematics if there is no remote scope available for the RHRS.
- If necessary go to the hall and change individual trigger delays!
- In parallel: Check S0, S2 and GC timings with Tong's and Jason's scripts.
Step 2
- Go to the hall and plug in the trigger signals and S2 on the 4-channel scopes.
- Check the individual trigger delays with respect to each and other and S2 (leads the time for S0&S2 and S0&S2&GC). Keep in mind to take also into account different cable length of the triggers from the logic unit to the TS input.
- If necessary go to the hall and modify the cables.
- In parallel: Check trigger time distributions with Shujie's script.
- If everything looks fine we need one hall access in total, if not we need more.
LHRS scopes
- A 4-chan scope and a 2-chan scope is installed. To access them in control mode, one has to open /escope/index.html in the adaq home folder with a browser.
- The IP address of the 4-chan scope is 129.57.192.253.
- The IP address of the 2-chan scope is 129.57.164.37 or hascope1.
- Both scopes are also accessible in observer mode if you type in the IP address in the browser.
- The following inputs are plugged into the 4-chan scope:
| Channel | Signal |
|---|---|
| 1 | S0 |
| 2 | S2 |
| 3 | GC |
| 4 | S0&S2 |