Titles: TCAC: Time Correlation Analyser: Control ================================================= Contact: N. West, Oxford. Revision History:- ================ 3.01 N. West First version. Titles Files ------------ tca_demo_titles.dat Verification ------------ Description ----------- This bank controls the Time Correlation Analyser (TCA). For more information see the Time Correlation Analyser chapter in the SNOMAN User's Manual. Data Words --------- Data types: B(bit), I, F, D(double), H(hollerith 4 char) Fixed length Database Header. See titles_dbhdr.html Word Type Mnemonic [symbolic command] Description ---- ---- -------- ------------------------------- KTCAC... 1 I _BUFFER_FRAC [tca_buffer_frac] Fraction of the avaliable free memory TCA can grab. If TCA is running as the only processor, leave this at its default of 1.0 2 I _QUIT_ON_OVFL [tca_quit_on_ovfl] Flag: = 0 This is the default and tells TCA to continue even though data will be lost. The output log will give an estimate of the size of buffer needed to prevent the = 1 abort if buffer overflow. 3 I _AMBIG_MAX [tca_ambig_max] Defines maximum possible ambiguity (the number of times a given primary can form associations with different secondaries) that TCA will encounter. This defines the size, in records, of the output buffer that has to hold them. 4 I _AMBIG_REQ [tca_ambig_req] Defines maximum ambiguity TCA is to output. By using the _SORT_ON variable to measure the quality of the association together with this command, the user can output just the best associations. 5 I _OUTPUT_UNASS [tca_output_unass] Flag: = 0 Don't output unassociated primaries = 1 This tells TCA to output a primary even if it fails to form an association. Such n-tuple entries have the undefined value for any variable that depends directly or indirectly on any event other than the primary. 6 I _TIME_GATE_LOW [tca_time_gate_low] Selects the low edge of the time gate. Any event occurring at a time earlier than this, relative to the current primary, will not form an association in which the current event is the primary. The lower limit must be less than zero. 7 I _TIME_GATE_HIG [ca_time_gate_high] Selects the high edge of the time gate. Any event occurring at a time later than this, relative to the current primary, will not form an association in which the current event is the primary. The higher limit must be greater than zero.