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--- strutture:lnf:da:btf:dispositivi:btf_timing [2012/11/28 18:23] – foggetta@infn.it
+++ strutture:lnf:da:btf:dispositivi:btf_timing [2024/03/19 16:02] (current) – [Additional Triggers] diociaiu@infn.it
@@ Line 1: / Line 1: @@
+======TIMING======
+**Service to the user**
+The user have a 2-channel arbitrary delay generator system {{:strutture:lnf:da:btf:dispositivi:dg535m.pdf|Stanford DG535m}}\\
+remotely controlled in BTF control room with the respecive bypass in BTF Hall.
+User customizable trigger signal (source LINAC SYS)
+**{{:strutture:lnf:da:btf:dispositivi:dg535m.pdf|STANFORD Delay Generator DDG535m}}**
+__BTF Setup Menu (**BSM**)__\\
+-> **Go Forever** = lets the DAFNE injection rejected pulses (till the Odoscope one) to be delivered at set frequency to BTF\\
+-> **Single Shot** = only one pulse delivered to BTF, after the DAFNE injection pulses\\
+\\
+__General Timing Status (**GTS**)__\\
+-> **Normal** = cutoff trigger signal @ BTF (the DHPTB101 still works!!!)\\
+-> **BTF** = gives trigger signal @ BTF and implements BTF status setup (**BSM**)\\
+-> **BTF one shot** = gives trigger signal @ BTF and implements BTF status setup for one shot per second or manual shot\\
+\\
+__ODOSCOPE setup (**ODO**)__\\
+-> **DAFNE** = cutoff the DHPTB101 \\
+-> **DAFNE+BTF** = permits DHPTB101 to pulse\\
+\\
+\\
+**__DAFNE+BTF status__**\\
+\\
+**MANUAL SHOT**\\
+**GTS** -> BTF 1 shot\\
+**BSM** -> Single shot\\
+**ODO** -> DAFNE + BTF\\
+Press RUN BTF button and it fires one pulse\\
+\\
+**One shot per second**\\
+**GTS** -> BTF 1 shot\\
+**BSM** -> Go Forever and number of impulses = 1\\
+**ODO** -> DAFNE + BTF\\
+Press RUN BTF button and it fires at 1 Hz (two pulses per second in DAFNE injection)\\
+\\
+** Maximun shot rate**\\
+**GTS** -> BTF\\
+**BSM** -> Go forever and number of impluses = 49\\
+**ODO** -> DAFNE + BTF\\
+\\
+==== BTF Signals ====
+**Q4 signal || BTF word signal** => Syncro word (~8usec before gun pulse)
+    Cable panel n.11(inside) SlowControl rack's hall in the BTF Control Room -> output from trg board send to 11(inside)-1
+\\
+**BTFTG1**//(user)// signal => Delayed signal (~8usec as before + 6usec delivering time + user delta time) to match the bunch arrival time in btf hall
+    Cable panel n.11 in BTF Control Room (near BTF Hall concrete wall) -> output from 11-1, delayed by Stanford C && !D, send to 11-3, from 11(inside)-3 send to a cable TG1BTF in BTF Hall
+\\
+**BTFTG2**//(user)// signal => Delayed signal (~8usec as before + 6usec delivering time + user delta time) to match the bunch arrival time in btf hall
+    Cable panel n.11 in BTF Control Room (near BTF Hall concrete wall) -> output from 11-1, delayed by Stanford A && !B, send to 11-2, from 11(inside)-2 send to a cable TG2BTF in BTF Hall
+\\
+**BTFTG0 A/B**//(btf staff)// signal => output from trg board, delayed by Stanford C && !D, send to a cable TG0BTF in BTF Hall
+**BTFTG0 C/D**//(btf staff)// signal => output from trg board, delayed by Stanford C && !D, send to a cable TG0BTF in BTF Hall
+\\
+==Stanford BTF Setup==
+** TRG EXT Setup **\\
+THreshold = -0.5V\\
+Slope = Negative\\
+Trigger Term = 50Ohm\\
+\\
+** GPIB addr **\\
+User = 14\\
+\\
+\\
+\\
+A = 15.79 usec\\
+B = A + 200 nsec (as gate)\\
+C = 15.79 usec\\
+D = C + 200 nsec (as gate)\\
+\\
+**BTFDAQ Timing Unit**\\
+DAQ Delay ~200nsec\\
+\\
+==== Additional Triggers ====
+There are additional triggers available for the users:
+** BTF &&  LINAC state **\\
+it is possible to select an electron/positron only TTL trigger signal (see the purple signal on the scope screen).
+This trigger starts 60 ns after the LINAC trigger.\\
+{{:strutture:lnf:da:btf:dispositivi:tempi_btf_stato.png?400|}}
+** BTF && Calorimeter **\\
+it generates a TTL trigger signal only if there is a LINAC trigger AND a signal in the calorimeter (see the purple signal on the scope screen). This Trigger starts 450 ns after the LINAC trigger.\\
+{{:strutture:lnf:da:btf:dispositivi:tempi_btfandcalo.png?400|}}