def checkBeam(Imin=2.0, Tmin=2.0):
"""
check beam life time and current
if beam lifetime is less than Tmin [hr], 2hrs by default,
or current is less then Imin [mA], 2mA by default
return False, otherwise True
"""
tau, Ib = ap.getLifetimeCurrent()
if Ib < Imin:
print('Beam current too low ({0} < {1})'.format(Ib, Imin))
return False
if tau < Tmin:
print('Beam lifetime too short ({0} < {1})'.format(tau, Tmin))
return False
return True
def checkBeam(Imin=2.0, Tmin=2.0):
"""
check beam life time and current
if beam lifetime is less than Tmin [hr], 2hrs by default,
or current is less then Imin [mA], 2mA by default
return False, otherwise True
"""
tau, Ib = ap.getLifetimeCurrent()
if Ib < Imin:
print "Beam current too low ({0} < {1})".format(Ib, Imin)
return False
if tau < Tmin:
print "Beam lifetime too short ({0} < {1})".format(tau, Tmin)
return False
return True
def measBackground(ID, output, iiter):
"""measure the background and return saved group name"""
if not nsls2id.putBackground(ID):
print "Failed at setting {0} to background mode".format(ID)
return None
# create background subgroup with index
fid = h5py.File(output)
prefix = "iter_"
iterindex = max([int(g[len(prefix):]) for g in fid[ID.name].keys()
if g.startswith(prefix)] + [-1]) + 1
bkgGroup = "iter_{0:04d}".format(iterindex)
grp = fid[ID.name].create_group(bkgGroup)
orb0 = ap.getOrbit(spos=True)
grp["orbit"] = orb0
tau, I = ap.getLifetimeCurrent()
grp["lifetime"] = tau
grp["current"] = I
grp.attrs["iter"] = iiter
fid.close()
return bkgGroup
def saveState(idobj, output, iiter,
parnames=None, background=None, extdata={}):
"""
parnames - list of extra fields of idobj to be saved.
background - the group name for its last background.
extdata - extra data dictionary.
returns data group name
"""
t1 = datetime.now()
prefix = "background" if background is None else "iter"
# create background subgroup with index
fid = h5py.File(output, 'a')
iterindex = max([int(g[len(prefix)+1:]) for g in list(fid[idobj.name])
if g.startswith(prefix)] + [-1]) + 1
groupName = "{0}_{1:04d}".format(prefix, iterindex)
grp = fid[idobj.name].create_group(groupName)
orb0 = ap.getOrbit(spos=True)
grp["orbit"] = orb0
tau, I = ap.getLifetimeCurrent()
grp["lifetime"] = tau
grp["current"] = I
if parnames is None:
parnames = ['gap', 'phase', 'mode']
else:
parnames = ['gap', 'phase', 'mode'] + list(parnames)
parnames = np.unique(parnames).tolist()
fields = idobj.fields()
for par in parnames:
if par in fields:
grp[par] = idobj.get(par, unitsys=None)
grp[par].attrs['unitsymb'] = idobj.getUnit(par, unitsys=None)
for k,v in extdata.items():
grp[k] = v
grp.attrs["iter"] = iiter
if background:
grp.attrs["background"] = background
else:
# Save current ID trim setpoints
elemflds = createCorrectorField(idobj)
_, flds = zip(*elemflds)
trim_sps = [idobj.get(ch, unitsys=None, handle='setpoint') for ch in flds]
grp['trim_sp'] = trim_sps
grp['trim_sp'].attrs['fields'] = flds
# Save current BPM offsets
try:
bpm_offset_pvs = saveState.bpm_offset_pvs
bpm_offset_pv_suffixes = saveState.bpm_offset_pv_suffixes
bpm_offset_fields = saveState.bpm_offset_fields
bpm_names = saveState.bpm_names
except AttributeError:
bpms = ap.getElements('p[uhlm]*')
bpm_names = [b.name for b in bpms]
bpm_pv_prefixes = [b.pv(field='xbba')[0].replace('BbaXOff-SP', '')
for b in bpms]
bpm_offset_fields = ['xbba', 'ybba', 'xref1', 'yref1', 'xref2', 'yref2']
bpm_offset_pv_suffixes = [
bpms[0].pv(field=f)[0].replace(bpm_pv_prefixes[0], '')
for f in bpm_offset_fields]
bpm_offset_pvs = []
for suf in bpm_offset_pv_suffixes:
bpm_offset_pvs += [prefix+suf for prefix in bpm_pv_prefixes]
saveState.bpm_offset_pvs = bpm_offset_pvs
saveState.bpm_offset_pv_suffixes = bpm_offset_pv_suffixes
saveState.bpm_offset_fields = bpm_offset_fields
saveState.bpm_names = bpm_names
bpm_offsets = np.array(
[d.real if d.ok else np.nan
for d in ap.caget(bpm_offset_pvs, throw=False)]).reshape(
(len(bpm_offset_pv_suffixes), -1)).T
grp.create_dataset('bpm_offsets', data=bpm_offsets, compression='gzip')
grp['bpm_offsets'].attrs['fields'] = bpm_offset_fields
grp['bpm_offsets'].attrs['pv_suffixes'] = bpm_offset_pv_suffixes
grp['bpm_offsets'].attrs['bpm_names'] = bpm_names
grp.attrs["state_saved"] = t1.strftime("%Y-%m-%d %H:%M:%S.%f")
fid.close()
return groupName
def saveState(idobj, output, iiter, parnames=None, background=None, extdata={}):
"""
parnames - list of extra fields of idobj to be saved.
background - the group name for its last background.
extdata - extra data dictionary.
returns data group name
"""
t1 = datetime.now()
prefix = "background" if background is None else "iter"
# create background subgroup with index
fid = h5py.File(output)
iterindex = max([int(g[len(prefix) + 1 :]) for g in fid[idobj.name].keys() if g.startswith(prefix)] + [-1]) + 1
groupName = "{0}_{1:04d}".format(prefix, iterindex)
grp = fid[idobj.name].create_group(groupName)
orb0 = ap.getOrbit(spos=True)
grp["orbit"] = orb0
tau, I = ap.getLifetimeCurrent()
grp["lifetime"] = tau
grp["current"] = I
if parnames is None:
parnames = ["gap", "phase", "mode"]
else:
parnames = ["gap", "phase", "mode"] + list(parnames)
parnames = np.unique(parnames).tolist()
fields = idobj.fields()
for par in parnames:
if par in fields:
grp[par] = idobj.get(par, unitsys=None)
grp[par].attrs["unitsymb"] = idobj.getUnit(par, unitsys=None)
for k, v in extdata.items():
grp[k] = v
grp.attrs["iter"] = iiter
if background:
grp.attrs["background"] = background
else:
# Save current ID trim setpoints
elemflds = createCorrectorField(idobj)
_, flds = zip(*elemflds)
trim_sps = [idobj.get(ch, unitsys=None, handle="setpoint") for ch in flds]
grp["trim_sp"] = trim_sps
grp["trim_sp"].attrs["fields"] = flds
# Save current BPM offsets
try:
bpm_offset_pvs = saveState.bpm_offset_pvs
bpm_offset_pv_suffixes = saveState.bpm_offset_pv_suffixes
bpm_offset_fields = saveState.bpm_offset_fields
bpm_names = saveState.bpm_names
except AttributeError:
bpms = ap.getElements("p[uhlm]*")
bpm_names = [b.name for b in bpms]
bpm_pv_prefixes = [b.pv(field="xbba")[0].replace("BbaXOff-SP", "") for b in bpms]
bpm_offset_fields = ["xbba", "ybba", "xref1", "yref1", "xref2", "yref2"]
bpm_offset_pv_suffixes = [bpms[0].pv(field=f)[0].replace(bpm_pv_prefixes[0], "") for f in bpm_offset_fields]
bpm_offset_pvs = []
for suf in bpm_offset_pv_suffixes:
bpm_offset_pvs += [prefix + suf for prefix in bpm_pv_prefixes]
saveState.bpm_offset_pvs = bpm_offset_pvs
saveState.bpm_offset_pv_suffixes = bpm_offset_pv_suffixes
saveState.bpm_offset_fields = bpm_offset_fields
saveState.bpm_names = bpm_names
bpm_offsets = (
np.array([d.real if d.ok else np.nan for d in ap.caget(bpm_offset_pvs, throw=False)])
.reshape((len(bpm_offset_pv_suffixes), -1))
.T
)
grp.create_dataset("bpm_offsets", data=bpm_offsets, compression="gzip")
grp["bpm_offsets"].attrs["fields"] = bpm_offset_fields
grp["bpm_offsets"].attrs["pv_suffixes"] = bpm_offset_pv_suffixes
grp["bpm_offsets"].attrs["bpm_names"] = bpm_names
grp.attrs["state_saved"] = t1.strftime("%Y-%m-%d %H:%M:%S.%f")
fid.close()
return groupName
