Closedown

2015-12-18 11:10:52 +01:00
parent 364ff1e6bd
commit 76ec68450f
1 changed files with 53 additions and 4 deletions
@@ -64,10 +64,59 @@ def fit(ydata, xdata = None):
 #fit([1,2,3, 3,3,3,4,5,6,12,33,23,15,3,2,1, 1, 1, 1, 1])        


-def rock(axis = None):
-    from rock import rock
-    rock()
-    #run("rock", {"rock_axis":None})
+#def rock(axis = None):
+#    from rock import rock
+#    rock()
+#    #run("rock", {"rock_axis":None})
+
+
+def rock(axis = th1, ffail = False, tt = 0.2, seti0 = False, dx = None, noref = False):
+    """
+    """
+    if axis is None:
+        axis = th1        
+    if noref == False:
+        caput('X06DA-OP-MO:MONOBEAM', -1 )
+    e = get_energy()
+    if dx is None:
+        dx = 7.5e-2/e
+    
+    # reinforce theta1 and 2 setting (setting could be RDBD 0.0001 and RTRY 1 when seteq does not finish nicely)
+    # put 'Retry deadband' to 0.00004 and 'Retries Max' to 5
+    time.sleep(0.2)
+    caput('X06DA-OP-MO1:ROX1.RDBD',0.00004)
+    caput('X06DA-OP-MO1:ROX2.RDBD',0.00004)
+    caput('X06DA-OP-MO1:ROX1.RTRY',5)
+    caput('X06DA-OP-MO1:ROX2.RTRY',5)
+    
+    #time stamp
+    print time.strftime('%X %x')
+    
+    #MVR,axis,-dx
+    #SCAN,axis,0,2*dx,20,/fit,/centre,SILENT = silent,FFAIL = ffail,time=tt,/deriv,$
+    #data=d
+    axis_pos = axis.read()
+    result = lscan(axis, mono_beam, -dx, dx, 20, latency = 0.3, relative = True, context = None, before_read = None, after_read = None)
+    (ydata, xdata) = (result.getReadable(0), result.getPositions(0))
+    (norm, mean, sigma) = fit(ydata, xdata) 
+    if (mean is not None) and (mean <= (axis_pos + dx))  and  (mean >= (axis_pos - dx)):
+        axis.move(mean)
+    else:
+        print 'fit failed - centering on maximum'
+        max_x= xdata[ydata.index(max(ydata))]
+        axis.move(max_x)    
+    
+    if seti0 and not ffail:
+        time.sleep(2)
+        run("setI0")    
+    #add after_rock BPM1:SUM as reference for monitoring monochromator thermal drift
+    if (noref==False) and not ffail:
+        time.sleep(3) # wait a bit until mono theta finish moving        
+        br = mono_beam.read()
+        caput('X06DA-OP-MO:MONOBEAM', br)
+        print 'rock_success new mono beam at ' + str(br) + ' at' + str(e) + ' keV'
+
+

 #from rock import rock