31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
Eph1 = 2.165 # actual photon energy
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Eph2 = 2.185 # desired photon energy
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do_elog = False
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undlist = ("SARUN03","SARUN04","SARUN05","SARUN06","SARUN07","SARUN08","SARUN09","SARUN10","SARUN11","SARUN12","SARUN13","SARUN14","SARUN15")
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K1, K2 = {}, {}
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for und in undlist:
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K = caget(und + "-UIND030:K_SET")
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K1[und] = K
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K2[und] = ((Eph1 / Eph2 * (K**2 + 2) - 2))**0.5
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# set laser on-delay
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caput("SIN-TIMAST-TMA:Beam-Las-Delay-Sel",1)
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caput("SIN-TIMAST-TMA:Beam-Apply-Cmd.PROC",1)
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if Eph2 < Eph1 :
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for und in undlist: caput(und + "-UIND030:K_SET", 0.07)
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time.sleep(40.0)
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for und in undlist: caput(und + "-UIND030:K_SET", K2[und])
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time.sleep(40.0)
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# set laser on-beam
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caput("SIN-TIMAST-TMA:Beam-Las-Delay-Sel",0)
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caput("SIN-TIMAST-TMA:Beam-Apply-Cmd.PROC",1)
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#Elog entry
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if do_elog:
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title = "Wavelength change"
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log_msg = "Old photon energy: %0.2f" % Eph1 + " kev\n"
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log_msg = log_msg + "New photon energy: %0.2f" % Eph2 + " keV\n"
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attachments = none
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elog(title, log_msg, attachments) |