def main():
# get list of nuclides
data.atomic_mass('U235')
nucs = set(data.atomic_mass_map.keys())
for nuc in data.atomic_mass_map:
nucm = nuc + 1
if nucname.anum(nuc) == 0 or data.decay_const(nucm) < 1e-16 or \
data.decay_const(nuc) == data.decay_const(nucm):
continue
nucs.add(nucm)
nucs = [nuc for nuc in nucs if nucname.anum(nuc) > 0]
#and
# not np.isnan(data.decay_const(nuc)) and
# nuc < 200000000]
nucs.sort()
# get symbols
symbols = {}
channels = {}
for nuc in nucs:
add_child_decays(nuc, symbols)
add_child_xss(nuc, channels, nucs)
# print symbols
ns = []
for nuc in nucs:
try:
nname = nucname.name(nuc)
except RuntimeError:
continue
ns.append(nname)
nucs = ns
d = {'symbols': symbols, 'nucs': nucs, 'channels': channels}
s = json.dumps(d, indent=4, sort_keys=True)
print(s)
def Calc_Moderating_Ratio(mats):
# Initialize output and key list
mr = []
key_lst = mats.keys()
for i in key_lst:
rho = mats[i].density
#Find A for elements
try:
A = atomic_mass(mats[i].metadata['name'])
#Find A for compounds
except RuntimeError as r:
A = 0
for k in mats[i].comp.keys():
A += atomic_mass(k) * mats[i].comp[k]
# Calculate Lethargy
xi = 1 - (A - 1)**2 / (2 * A) * log((A + 1) / (A - 1))
# Get cross-section Data (Reaction #2=elastic scattering, #4=inel scattering, #16=n,2n, #27=absorption
sds = SimpleDataSource()
sig_el1, sig_inl1, sig_a1 = 0, 0, 0
sig_el14, sig_inl14, sig_a14 = 0, 0, 0
for k in mats[i].comp.keys():
try:
sig_el14 += sds.reaction(k, 2)[0] * mats[i].comp[
k] #Index 0 is 14 MeV, 1 is 1 MeV, 2 is thermal
sig_inl14 += sds.reaction(k, 4)[0] * mats[i].comp[k]
sig_a14 += sds.reaction(k, 27)[0] * mats[i].comp[k]
sig_el1 += sds.reaction(k, 2)[1] * mats[i].comp[k]
sig_inl1 += sds.reaction(k, 4)[1] * mats[i].comp[k]
sig_a1 += sds.reaction(k, 27)[1] * mats[i].comp[k]
except TypeError as t:
module_logger.warning(
"{}({}) cross-section not found in EAS data.".format(i, k))
# Calculate macroscopic cross-sections
sig_el14 = sig_el14 * N_A * mats[i].density / A
sig_inl14 = sig_inl14 * N_A * mats[i].density / A
sig_a14 = sig_a14 * N_A * mats[i].density / A
sig_el1 = sig_el1 * N_A * mats[i].density / A
sig_inl1 = sig_inl1 * N_A * mats[i].density / A
sig_a1 = sig_a1 * N_A * mats[i].density / A
# Calculate moderating ratio
try:
mr.append(
Moderating_Ratio(i,
xi * (sig_el1 + sig_inl1) / sig_a1,
xi * (sig_el14 + sig_inl14) / sig_a14))
except ZeroDivisionError as z:
module_logger.warning(
"Divide by zero error. No absorption cross section for {} in EAS data."
.format(i))
mr.append(Moderating_Ratio(i, 0.0, 0.0))
return mr
def test_atomic_mass():
o16 = [15.9949146196, 16.0]
u235 = [235.04392819, 235.0]
am242m = [242.059547428, 242.0]
# zzaam form
assert_in(data.atomic_mass(80160), o16)
assert_in(data.atomic_mass(922350), u235)
assert_in(data.atomic_mass(952421), am242m)
def test_atomic_mass():
o16 = [15.99491461957, 16.0]
u235 = [235.043930131, 235.0]
am242m = [242.059549364, 242.0]
# zzaam form
assert_in(data.atomic_mass(80160), o16)
assert_in(data.atomic_mass(922350), u235)
assert_in(data.atomic_mass(952421), am242m)
def test_atomic_mass():
o16 = [15.99491461957, 16.0]
u235 = [235.043931368, 235.0]
am242m = [242.059550625, 242.0]
# zzaam form
assert_in(data.atomic_mass(80160), o16)
assert_in(data.atomic_mass(922350), u235)
assert_in(data.atomic_mass(952421), am242m)
def test_atomic_mass():
# set the datapath to nonsense so we call the cpp data version
orig = pyne_conf.NUC_DATA_PATH
pyne_conf.NUC_DATA_PATH = b"bobbobhonkeytonk"
o16 = [15.9949146196, 16.0]
u235 = [235.04392819, 235.0]
am242m = [242.059547428, 242.0]
# zzaam form
assert_in(data.atomic_mass(80160), o16)
assert_in(data.atomic_mass(922350), u235)
assert_in(data.atomic_mass(952421), am242m)
pyne_conf.NUC_DATA_PATH = orig
def test_elements():
# set the datapath to nonsense so we call, the cpp data version
orig = pyne_conf.NUC_DATA_PATH
pyne_conf.NUC_DATA_PATH = b'bobbobhonkeytonk'
# initialize natural_abund_map
# test a series of elements
assert_almost_equal(data.atomic_mass('H'), 1.0079407540557774)
assert_almost_equal(data.atomic_mass('Li'), 6.9400366029079965)
assert_almost_equal(data.atomic_mass('U'), 238.02891048471406)
# NB any elements beyond z = 92 are not natural
# and therefore have 0.0 atomic mass
assert_almost_equal(data.atomic_mass('Pu'), 0.0)
# note if you use the nuc_data.h5 file it
# has the same behaviour
pyne_conf.NUC_DATA_PATH = orig
def test_elements():
# set the datapath to nonsense so we call, the cpp data version
orig = pyne_conf.NUC_DATA_PATH
pyne_conf.NUC_DATA_PATH = b"bobbobhonkeytonk"
# initialize natural_abund_map
# test a series of elements
assert_almost_equal(data.atomic_mass("H"), 1.007940754065775)
assert_almost_equal(data.atomic_mass("Li"), 6.940036602972684)
assert_almost_equal(data.atomic_mass("U"), 238.02890905398374)
# NB any elements beyond z = 92 are not natural
# and therefore have 0.0 atomic mass
assert_almost_equal(data.atomic_mass("Pu"), 0.0)
# note if you use the nuc_data.h5 file it
# has the same behaviour
pyne_conf.NUC_DATA_PATH = orig
def query(c):
"""Lists decay heats of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# gives avogadro's number with a kg to g conversion
ACT_CONV = 1000*6.022e23
# converts from MeV/s to MW
Q_CONV = 1.602e-19
# SQL query returns a table with the nuclides (and their masses) transacted from reactor
sql = ("SELECT resources.TimeCreated, compositions.NucId,"
"compositions.MassFrac*resources.Quantity ")
sql += ("FROM resources "
"INNER JOIN compositions ON resources.QualId = compositions.QualId "
"INNER JOIN transactions ON resources.TimeCreated = transactions.Time "
"WHERE transactions.SenderId=13 "
"GROUP BY resources.TimeCreated, compositions.NucId "
"ORDER BY resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
alldecayheats = []
# Calculates decay heat (MW) at each timestep
for time_step, nuc, mass in results:
act = ACT_CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
dh = Q_CONV * act * data.q_val(nuc)
row = (time_step, nuc, dh)
alldecayheats.append(row)
return alldecayheats
def atom_to_mass_frac(atom):
"""Convert input in atomic fraction to mass fraction"""
if type(atom) is np.ndarray:
if len(atom) != 6:
raise ValueError("Array has to be of len 6 (U232 to U236, U238)")
isotopes = [f"92{i}0000" for i in range(232, 239) if i != 237]
masses = np.array([atomic_mass(iso) for iso in isotopes])
mass = atom * masses
mass /= mass.sum()
return mass
mass = {}
normalisation = 0
for key, value in atom.items():
if key > 250 or key < 1:
raise KeyError('Keys have to be the atomic masses, ' +
'not NucIds or something else.')
val = value * key
mass[key] = val
normalisation += val
for key in mass.keys():
mass[key] /= normalisation
return mass
def elelib_to_nuclib(filename, outfile):
output = ""
with open(filename, 'r') as f:
line = f.readline()
while line != '':
if len(line.split()) == 0:
line = f.readline()
continue
elem_output = ''
iso_output = ''
elem_output += line
l = line.split()
ll = l[0] # atomic symbol
elem_mass = float(l[1]) # average atomic weight, natural element
znum = int(l[2])
rho = float(l[3]) # mass density
num_isos = int(l[4])
for _ in range(num_isos):
isoline = f.readline()
elem_output += isoline
anum = int(isoline.split()[0])
atomic_mass = data.atomic_mass("{0}{1}".format(ll, anum))
iso_output += "{0}:{1} {2:13.5E} {3:3d} {4:13.5E} 1\n {5} 100\n".format(
ll, anum, atomic_mass, znum, rho * atomic_mass / elem_mass,
anum)
line = f.readline()
output += elem_output + iso_output
with open(outfile, 'w') as f:
f.write(output)
def elelib_to_nuclib(filename, outfile):
output=""
with open(filename, 'r') as f:
line = f.readline()
while line !='':
if len(line.split()) == 0:
line = f.readline()
continue
elem_output = ''
iso_output = ''
elem_output += line
l = line.split()
ll = l[0] # atomic symbol
elem_mass = float(l[1]) # average atomic weight, natural element
znum = int(l[2])
rho = float(l[3]) # mass density
num_isos = int(l[4])
for _ in range(num_isos):
isoline = f.readline()
elem_output += isoline
anum = int(isoline.split()[0])
atomic_mass = data.atomic_mass("{0}{1}".format(ll, anum))
iso_output += "{0}:{1} {2:13.5E} {3:3d} {4:13.5E} 1\n {5} 100\n".format(
ll, anum, atomic_mass, znum, rho*atomic_mass/elem_mass, anum)
line = f.readline()
output += elem_output + iso_output
with open(outfile, 'w') as f:
f.write(output)
def query(c):
"""Lists activities of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# SQL query returns a table with the nuclides and their masses at each timestep
sql = ("SELECT Resources.TimeCreated, Compositions.NucID,"
"Compositions.MassFrac*Resources.Quantity ")
sql += ("FROM Resources "
"INNER JOIN Compositions ON Resources.StateID = Compositions.StateID "
"GROUP BY Resources.TimeCreated, Compositions.NucID "
"ORDER BY Resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
# Gives avogadro's number with a kg to g conversion
CONV = 1000*6.022e23
activities = []
# Calculates activities (/s) of each nuclide at each timestep
for time_step, nuc, mass in results:
act = CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
row = (time_step, nuc, act)
activities.append(row)
return activities
def query(c):
"""Lists decay heats of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# gives avogadro's number with a kg to g conversion
ACT_CONV = 1000 * 6.022e23
# converts from MeV/s to MW
Q_CONV = 1.602e-19
# SQL query returns a table with the nuclides (and their masses) transacted from reactor
sql = ("SELECT resources.TimeCreated, compositions.NucId,"
"compositions.MassFrac*resources.Quantity ")
sql += (
"FROM resources "
"INNER JOIN compositions ON resources.QualId = compositions.QualId "
"INNER JOIN transactions ON resources.TimeCreated = transactions.Time "
"WHERE transactions.SenderId=13 "
"GROUP BY resources.TimeCreated, compositions.NucId "
"ORDER BY resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
alldecayheats = []
# Calculates decay heat (MW) at each timestep
for time_step, nuc, mass in results:
act = ACT_CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
dh = Q_CONV * act * data.q_val(nuc)
row = (time_step, nuc, dh)
alldecayheats.append(row)
return alldecayheats
def query(c):
"""Lists activities of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# SQL query returns a table with the nuclides and their masses at each timestep
sql = ("SELECT resources.TimeCreated, compositions.NucID,"
"compositions.MassFrac*resources.Quantity ")
sql += (
"FROM resources "
"INNER JOIN compositions ON resources.QualId = compositions.QualId "
"GROUP BY resources.TimeCreated, compositions.NucId "
"ORDER BY resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
# Gives avogadro's number with a kg to g conversion
CONV = 1000 * 6.022e23
activities = []
# Calculates activities (/s) of each nuclide at each timestep
for time_step, nuc, mass in results:
act = CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
row = (time_step, nuc, mass, act)
activities.append(row)
return activities
def get_isodict(loc='bu8_tot.eq', valtype="mass"):
isodict = {}
for line in file(loc):
zaid, atoms = line.split()
if valtype == "mass":
isodict[int(zaid)] = data.atomic_mass(int(zaid))*float(atoms)
elif valtype == "mol":
isodict[int(zaid)] = float(atoms)
return isodict
def addToLists(bC, bA, bCE, bAE, bCN, bAN, bCEN, bAEN, counts, abundance, name,
element):
"""Checks and updates all best lists.
Args:
bC: List of best counts for all elements.
bA: The list of best overall abundances.
bCE: The list of names of the best elements overall, so far.
bAE: List of best abundances names for natural elements.
bCN: List of best counts for natural elements.
bAN: List of best abundances' names.
bCEN: List of names for natural elements for counts.
bAEN: List of names for natural elements for abundances.
counts: number of similar intensity counts for this element.
abundance: List of most abundant elements so far.
name: The name of the element in question.
element: The element in question.
"""
if name[-1] != 'M':
if len(bC) < 11:
bC.append(counts)
bA.append(abundance)
bCE.append(name)
bAE.append(bCE[-1])
else:
bC[-1] = counts
bA[-1] = abundance
bCE[-1] = name
bAE[-1] = bCE[-1]
if len(bCN) < 11:
if data.atomic_mass(element) <= 180:
bCN.append(counts)
bAN.append(abundance)
bCEN.append(name)
bAEN.append(bCE[-1])
elif data.atomic_mass(element) <= 180:
bCN[-1] = counts
bAN[-1] = abundance
bCEN[-1] = name
bAEN[-1] = bCE[-1]
def reactor_power(sp_power, particles):
"""Returns the FHR's power
Parameters
----------
sp_power: float
specific power of reactor [W/gU]
particles: int
number of triso particles in each fuel stripes's y-direction
Returns
-------
t_u: float
mass of Uranium [metric tonnes]
power: float
power of reactor [W]
"""
wtp_u = ((0.00227325 * data.atomic_mass('U235')) +
(0.02269476 * data.atomic_mass('U238'))) / \
(0.00227325 * data.atomic_mass('U235') +
0.02269476 * data.atomic_mass('U238') +
0.03561871 * data.atomic_mass('O16') +
0.00979714 * data.atomic_mass('C0')) * 100 # %
V = (101 * 210 * particles * 36 * 4 / 3 * np.pi * (2135e-5)**3) # cm3
density = 11 # g/cc
grams_u = V * density * (wtp_u) / 100 # gU
t_u = grams_u * 1e-6 # t
power = grams_u * sp_power # W
return t_u, power
def get_activity_Ci(isodict=moldict, valtype="mol"):
activity_Ci={}
ci_dec_per_sec = 3.7E10 # conversion factor 1 curie = 3.7E10 decays/sec
if valtype=="mol":
for iso, mols in isodict.iteritems():
dec_per_sec = mols*constants.N_A*data.decay_const(nucname.id(iso))
activity_Ci[nucname.name(iso)]= dec_per_sec/ci_dec_per_sec
elif valtype=="mass":
for iso, mass in isodict.iteritems():
dec_per_sec = mass*data.atomic_mass(nucname.id(iso))*constants.N_A*data.decay_const(nucname.id(iso))
activity_Ci[nucname.name(iso)]= dec_per_sec/ci_dec_per_sec
sorted_a = sorted(activity_Ci.iteritems(), key=operator.itemgetter(0))
print sorted_a
return activity_Ci
def activity(series):
"""Activity metric returns the instantaneous activity of a nuclide
in a material (material mass * decay constant / atomic mass)
indexed by the SimId, QualId, ResourceId, ObjId, TimeCreated, and NucId.
"""
tools.raise_no_pyne('Activity could not be computed', HAVE_PYNE)
mass = series[0]
act = []
for (simid, qual, res, obj, time, nuc), m in mass.iteritems():
val = (1000 * data.N_A * m * data.decay_const(nuc) \
/ data.atomic_mass(nuc))
act.append(val)
act = pd.Series(act, index=mass.index)
act.name = 'Activity'
rtn = act.reset_index()
return rtn
def activity(series):
"""Activity metric returns the instantaneous activity of a nuclide
in a material (material mass * decay constant / atomic mass)
indexed by the SimId, QualId, ResourceId, ObjId, TimeCreated, and NucId.
"""
tools.raise_no_pyne('Activity could not be computed', HAVE_PYNE)
mass = series[0]
act = []
for (simid, qual, res, obj, time, nuc), m in mass.iteritems():
val = (1000 * data.N_A * m * data.decay_const(nuc) \
/ data.atomic_mass(nuc))
act.append(val)
act = pd.Series(act, index=mass.index)
act.name = 'Activity'
rtn = act.reset_index()
return rtn
def checkAbundanceLists(abundance, name, bA, bAE, bAN, element, bAEN):
"""Checks and updates the best lists of abundant elements.
Args:
abundance: List of most abundant elements so far.
name: The name of the element in question.
bA: The list of best overall abundances.
bAE: List of best abundances names for natural elements.
element: The element in question.
bAEN: List of names for natural elements for abundances.
"""
#make sure we haven't seen this element before
isThere = False
for e in range(len(bAE) - 1):
if bAE[e] == bAE[-1]:
isThere = True
#update abundance lists
if (abundance < 1.0 and not isThere and abundance > 0.0
and name[-1] != 'M'):
smaller = 0
for a in range(len(bA) - 1):
if bA[smaller] > bA[a]:
smaller = a
if bA[smaller] < abundance:
bA[smaller] = abundance
bAE[smaller] = bAE[-1]
smaller = 0
#check for natural isotopes
if data.atomic_mass(element) <= 180:
smaller = 0
for d in range(len(bAN) - 1):
if bAN[smaller] > bAN[d]:
smaller = d
if bAN[smaller] < abundance:
bAN[smaller] = abundance
bAEN[smaller] = bAEN[-1]
def get_masses(self):
return {
nuc_name: data.atomic_mass(nuc_id) * u_to_g
for nuc_id, nuc_name in zip(self.keys(), self.isotopes)
}
def tape9_to_sparse(tape9s,
phi,
format='csr',
decaylib='decay.lib',
include_fission=True,
alpha_as_He4=False):
"""Converts a TAPE9 file to a sparse matrix.
Parameters
----------
tape9s : str or list of str
The filename(s) of the tape file(s).
phi : float
The neutron flux in [n / cm^2 / sec]
format : str, optional
Format of the sparse matrix created.
decaylib : str, optional
A path to TAPE9 containg the decay data libraries if the decay libraries
are not present in tape9. If this is a relative path, it is taken
relative to the given tape9 location.
include_fission : bool
Flag for whether or not the fission data should be included in the
resultant matrix.
Returns
-------
mat : scipy.sparse matrix
A sparse matrix in the specified layout.
nucs : list
The list of nuclide names in canonical order.
"""
all_decays_consts, all_gammas, all_sigma_ij, all_sigma_fission, all_fission_product_yields = [], [], [], [], []
all_alpha_ij, all_gamma_alphas = [], []
nucs = set()
mats = []
# seed initial nucs with known atomic masses
data.atomic_mass('u235')
for tape9 in tape9s:
print("Getting data for", tape9)
t9 = parse_tape9(tape9)
decay = find_decaylib(t9, tape9, decaylib)
for i in data.atomic_mass_map.keys():
if nucname.iselement(i):
continue
try:
nucs.add(nucname.name(i))
except RuntimeError:
pass
# get the tape 9 data
nucs, decays_consts, gammas, gammas_alphas = decay_data(decay,
nucs=nucs)
nucs, sigma_ij, sigma_fission, fission_product_yields, alpha_ij = cross_section_data(
t9, nucs=nucs)
if not include_fission:
sigma_fission = {}
fission_product_yields = {}
if not alpha_as_He4:
gammas_alphas = {}
alpha_ij = {}
all_decays_consts.append(decays_consts)
all_gammas.append(gammas)
all_sigma_ij.append(sigma_ij)
all_sigma_fission.append(sigma_fission)
all_fission_product_yields.append(fission_product_yields)
all_alpha_ij.append(alpha_ij)
all_gamma_alphas.append(gammas_alphas)
nucs = sort_nucs(nucs)
for i in range(len(tape9s)):
dok = create_dok(phi, nucs, all_decays_consts[i], all_gammas[i],
all_sigma_ij[i], all_sigma_fission[i],
all_fission_product_yields[i], all_alpha_ij[i],
all_gamma_alphas[i])
rows, cols, vals, shape = dok_to_sparse_info(nucs, dok)
mats.append(SPMAT_FORMATS[format]((vals, (rows, cols)), shape=shape))
return mats, nucs
# # Print molecular weight # ######################################################################## # # # ####### # # imports # from pyne.data import atomic_mass # ######################################################################## # # # ####### # # compute atomic mass # print 'Type in the isotope; i.e., h2, cs137, co60' isotope=raw_input() print isotope,atomic_mass(isotope) # ######################################################################## # # EOF # ########################################################################
def get_numbers(self):
N = {}
for nuc_id, nuc_name in zip(self.keys(), self.isotopes):
mass = self.material[nuc_id] * self.mass_g
N[nuc_name] = (1 / (data.atomic_mass(nuc_id) * u_to_g) * mass)
return N
from pyne.data import atomic_mass
except:
print('some weird import bug in pyne that makes the first import fail')
from pyne.data import atomic_mass
lines = sys.stdin.readlines()
w = open('out.txt', 'w')
inventory = {}
for line in lines:
line = line.split(' ')
if line[0] == 'time':
del (line[0])
time = np.asarray(line)
time.astype(np.float)
elif line[0] == 'Inv':
del (line[0])
iso = line[0] + line[1]
iso = int(float(iso))
del (line[0:3])
del (line[-1])
values = np.asarray(line)
values = values.astype(np.float)
inventory[iso] = values
else:
continue
total = 0.0
for iso in inventory:
total += inventory[iso][0] * atomic_mass(iso)
for iso in inventory:
inventory[iso] *= atomic_mass(iso) * total
print(inventory[92238])
def rel_activity(c):
"""Lists activity of spent fuel from all facilities relative to natural U
0, 10, 100, 1000, 10000 years after the end of the simulation.
Args:
c: connection cursor to sqlite database.
"""
activities = activity.query(c)
dict_acts = {}
sim_time = activities[-1][0]
# Conversion of time from months to seconds
MCONV = 3.16e7 / 12
# Conversion of years to seconds
YCONV = 3.16e7
dict_acts = {}
tot_mass = 0.0
sim_time = activities[-1][0]
# Get list of one activity per nuclide wrt end of sim & sum total mass
for time_step, nuc, mass, act in activities:
tot_mass += mass
sec = (sim_time - time_step) * MCONV
acts = act * math.exp(-sec * data.decay_const(nuc))
if nuc in dict_acts.keys():
dict_acts[nuc] += acts
else:
dict_acts[nuc] = acts
# Put back into list of tuples & sort by nuclide
act_endsim = dict_acts.items()
act_endsim.sort()
# calculate natural uranium activity
CONV_235 = 0.007*1000*6.022e23
CONV_238 = 0.993*1000*6.022e23
actU235 = CONV_235 * tot_mass * data.decay_const('U235') / data.atomic_mass('U235')
actU238 = CONV_238 * tot_mass * data.decay_const('U235') / data.atomic_mass('U235')
act_U = actU235 + actU238
# calculate relative activities to nat U after 0, 10, 100, 1000, 10000 yrs
rel_acts = []
for nuc, act0 in act_endsim:
t = 10
nuc_acts = (act0,)
while t <= 10000:
sec = t * YCONV
nuc_act = act0 * math.exp(-sec * data.decay_const(nuc))
nuc_acts += (nuc_act,)
t = 10 * t
rel = []
for i in nuc_acts:
frac = i / act_U
rel.append(frac)
row = (nuc,) + tuple(rel)
rel_acts.append(row)
# Write to csv file
fname = 'relative_activity.csv'
with open(fname,'w') as out:
csv_out=csv.writer(out)
csv_out.writerow(['nuclide',
'rel_act at 0 yrs',
'rel_act at 10 yrs',
'rel_act at 100 yrs',
'rel_act at 1000 yrs',
'rel_act at 10000 yrs'])
for row in rel_acts:
csv_out.writerow(row)
print('file saved as ' + fname + '!')
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Fri Dec 28 20:03:14 2018
@author: janv4
"""
import numpy as np
from pyne import data as pyne_data
from pyne import ace as pyne_ace
import matplotlib.pyplot as plt
import math
import Scattering
#============================ Define Isotope and ACE file
A = pyne_data.atomic_mass('C12')
Acefile = '6000.710nc'
AcePath='/Users/janv4/Desktop/Projects/' + \
'MCNPDATA/MCNP_DATA/DVD-3/' + \
'MORE_DATA_620-B/xdata/endf71x/C/'
OutputFileName = 'SXS_6000.txt'
OutputPath='/Users/janv4/Desktop/Personal/' + \
'compphysicsnotes/NeutronTransport/SXS/Groups_10A/'
OF = open(OutputPath + OutputFileName, 'w')
#============================ Define flux spectrum to use as weighting
FluxWeightOption = 'Unity'
#============================ Define Groups
G = 10 #Number of energy groups
