155 lines
4.6 KiB
Python
155 lines
4.6 KiB
Python
COUNT_ID = 0
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def count (count_time):
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waitmove
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count_em (count_time) # triggers the counting process
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waitcount # waits for counting to finish
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count_end # clean up after counting
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get_counts # retrieve the counts from detectors
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chk_xray # verify quality of xray
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chk_counts # verify quality of counts
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chk_beam # terminate this count loop
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if (S[sec] && MON >= 0)
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MON_RATE=S[MON]/S[sec]
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def count_em (count_time):
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while (mythen.is_acquiring()):
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mythen.stop()
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time.sleep(0.25)
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user_precount()
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if (count_time != 0):
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if (count_time > 0):
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# MYTHEN
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mythen.set_acquire_time(count_time)
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mythen.set_acquire_mode("Single")
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mythen.start()
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else:
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print "Preset monitor counting is not supported\!"
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user_postcount()
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def user_precount():
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open_shutter()
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autoCalcExposure()
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global PIX_IS_ON
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if ((PIX_IS_ON) && (pixconnected())):
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pixsetexpose(count_time)
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pixgetfilefmt()
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pixsnap()
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def user_postcount():
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pass
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# define new count_end, chk_counts, and chk_xray macros:
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def count_end 'user_count_end'
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def chk_counts 'user_chk_counts'
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def chk_xray 'user_chk_xray'
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# use the EPICS DCR508 scaler
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# initially, user_count_end, user_chk_counts, and user_chk_xray are empty:
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def user_count_end '' # if used, this should be a chained macro definition
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def user_chk_counts '' # if used, this should be a chained macro definition
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def user_chk_xray '' # if used, this should be a chained macro definition
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#+
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#------------------------------------------------------------------------------
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# ct - second lowest level count command - for manual count.
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# This version is slightly expanded with respect to
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# the original definition in standard.mac:
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# count_end has been added to provide further
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# flexibility regarding the use of various detectors.
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#
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# Note: See also the description of the modified 'count' command for more
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# information.
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#-
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def ct (count_time):
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# ==
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cdef("cleanup_once", "onp; show_cnts; offp; user_ct", "ct")
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waitmove
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count_em (count_time) # triggers the counting process
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waitcount # waits for counting to finish
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count_end # clean up after counting
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cdef("cleanup_once", "", "ct", "delete")
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onp; show_cnts; offp
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user_ct
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}'
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#+
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#------------------------------------------------------------------------------
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# recount - allows to retake the last data point - useful when
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# files (images) need to be overwritten. Include
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# device-specific code in user_pre_recount and
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# user_post_recount.
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#
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# Note: This is essentially a modified version of count
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# without the check commands (chk_xray, chk_counts,
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# and chk_beam) at the end.
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#-
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def recount '{
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# =======
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waitmove
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user_pre_recount # should be a chained macro definition
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count_em $1 # triggers the counting process
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waitcount # waits for counting to finish
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count_end # clean up after counting
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get_counts # retrieve the counts from detectors
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user_post_recount # should be a chained macro definition
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}'
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# initially, user_pre_recount and user_post_recount are empty.
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def user_pre_recount ''
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def user_post_recount ''
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#+
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#------------------------------------------------------------------------------
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# waitcount - waits for counting to stop
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#-
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def waitcount(count_time):
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user_waitcount()
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i = 0
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while (mythen.is_acquiring()):
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sleep (0.05)
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i += 1
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if (i * 0.05 >= count_time * 2):
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print "MYTHEN Izero times out, status: " + str(mythen.get_status())
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break
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#+
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#------------------------------------------------------------------------------
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# get_counts - lowest level counter reading macro.
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#-
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def get_counts(count_time):
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global COUNT_ID
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S[0] = mythen.get_acquire_time(readback=False)
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S[1] = mythen.get_total_counts()
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# S[2] is detector counts from image.mac ###TOFO
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S[3] = S[2] / count_time / transm.getValue()
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S[5] = transm.getValue()
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COUNT_ID = COUNT_ID+1 # increment the exposure ID
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# set threshold counts in case auto-level support is available
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if "AUTO_THRESH1" in globals():
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AUTO_THRESH1_COUNT = (S[2]>=AUTO_THRESH1)?S[2]:0
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AUTO_THRESH2_COUNT = (S[2]>=AUTO_THRESH2)?S[2]:0
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AUTO_THRESH3_COUNT = (S[2]>=AUTO_THRESH3)?S[2]:0
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AUTO_THRESH4_COUNT = (S[2]>=AUTO_THRESH4)?S[2]:0
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user_getcounts
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