Running the First Example

Run SNOMAN and type:-

@tca_demo

This will analyse n-tuple file you have just created and produce a new one called

tca_demo_out.ntp

using the TCAC and TCAR 201 banks. The SNOMAN output will include:-

 TCA:  Summary of processing:-

       Input:  File: tca_demo_in.ntp
               N-tuple ID:                     100
               No. of entries in file:         100
               No. of entries read:            100
               Of which:-
                         10    Primary candidate only
                         10    Secondary candidate only
                          0    Ambiguous candidate
                         80    No candidate

which shows that 10 events passed the primary test i.e. had 30 hits and 10 passed secondary test i.e. had 20 hits. Not surprisingly, no event was ambiguous i.e. passed both tests. 80 events failed both tests so would not have been stored in the buffer at all. The next section of output:-

       Output: File: tca_demo_out.ntp
               N-tuple ID:    201
               No. of entries written:          10

shows a perfect score, all 10 primaries matched with their secondaries.

At this point you could run PAW and look at the time difference between the primary and the secondary:-

hist/file 20  tca_demo_out.ntp
ntuple/plot 201.del_time

which will show all the intervals at exactly 1000nsec.