Data Acquisition Manual: How to run Neutron Time of Flight Measurements at nELBE
- Fission Experiment -
DAQ preparations:
To run neutron time of flight measurement you first have to do some preparations:
trigger matching | ||||||||
1. | Switch on the electronics: | |||||||
switch on
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(see here) | |||||||
2. | Start MBS: | |||||||
login to RIO42: | telnet rio42 user name: ntofdaq password: *********** |
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go to working directory | cd mbsrun/nfis |
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start MBS prompter | mbs | |||||||
initialise MBS | @start | |||||||
3. | Set MBS initialisation parameters: | |||||||
login to ZIRKONIA (in another terminal window) | ssh -X ntofdaq@zirkonia password: *********** |
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go to working directory | cd mbsrun/nfis | |||||||
open setup.ini for text editing if you want to do some special settings |
xemacs setup.ini & | |||||||
or open setup_short.ini for text editing if you only want to change only the important special settings |
xemacs setup_short.ini & | |||||||
4. | Open MBS monitoring windows: | |||||||
login to ZIRKONIA (in another terminal window) | ssh -X ntofdaq@zirkonia password: *********** |
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go to working directory | cd mbsrun/nfis | |||||||
open mbslog.l, mbsprint.l and mbs_ratios.l for monitoring (each in its own terminal window) |
tail -f mbslog.l tail -f mbsprint.l tail -f mbs_ratios.l |
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5. | Start LEA: | |||||||
login to ZIRKONIA | ssh -X ntofdaq@zirkonia password: *********** |
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initialize system variables | source .profile | |||||||
go to working directory | cd lea/nfis_online | |||||||
start LEA | lea -pro nfis -men | |||||||
choose right settings | Source: MBS samples Input file/node: rio42 |
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6. | Set LEA initialisation parameters: |
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login to ZIRKONIA (in another terminal window) | ssh -X ntofdaq@zirkonia password: *********** |
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go to working directory | cd lea/nfis | |||||||
open setup.ini for text editing if you want to do some special settings | xemacs setup.ini & | |||||||
7. | Switch on the detectors: | |||||||
login to FWK103 (HV control PC) | rdesktop -g 90% -a 16 -k de fwk21 user name: ntofdaq password: ********** |
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switch on the detectors you want to use (cf. cabeling scheme) | start "isegCANHVControl" via desktop shortcut | |||||||
8. | Start RFIO server and client: | |||||||
login to ZIRKONIA | ssh -X ntofdaq@zirkonia password: *********** |
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go to directory for list mode data files | cd /hdd1/ntofdaq/lmd/ | |||||||
start RFIO dispatcher | rawDispRFIO | |||||||
In MBS: connect to RFIO Server |
connect rfio zirkonia -disk |
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9. | Start monitor DAQ and monitoring windwos for ELBE Operators: | |||||||
see Monitor DAQ manual |
Running the DAQ:
Now the measurement can be started. This has to be done in the MBS prompter (prm):
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If any problem occurs:
Problem | Solution | |||||||||
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