#!/usr/bin/env /usr/bin/python3
################################################
import pandas as pd
# the API webpage
# https://www-nds.iaea.org/relnsd/vcharthtml/api_v0_guide.html#examples
# the service URL
livechart = "https://nds.iaea.org/relnsd/v0/data?"
import urllib.request
def lc_read_csv(url):
req = urllib.request.Request(url)
req.add_header('User-Agent', 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:77.0) Gecko/20100101 Firefox/77.0')
return pd.read_csv(urllib.request.urlopen(req))
mp = 938.27208816; #MeV/c^2
mn = 939.56542052;
'''
haha = lc_read_csv(livechart + 'fields=ground_states&nuclides=all')
def FindZ(AZ):
query = livechart + "fields=ground_states&nuclides=" + AZ
temp = lc_read_csv(query);
try :
return temp['z']
except :
return 'na'
def FindSym(Z):
try:
return (haha['symbol'][haha['z']==Z]).iloc[0]
except:
return 'na'
def Mass(A, Z):
try :
BEA = float(haha['binding'][haha['z']==Z][haha['n']==(A-Z)])/1000
return (A-Z)*mn + Z*mp - A * BEA
except :
return -404
def MassSym(AZ):
query = livechart + "fields=ground_states&nuclides=" + AZ
temp = lc_read_csv(query);
Z = temp['z']
N = temp['n']
try :
return Z*mp + N*mn - (Z+N)*temp['binding']/1000
except:
return -404
def Sp(A,Z,a,z):
mA = Mass(A,Z)
mB = Mass(A-a, Z-z)
if z == 0 :
mb = a * mn
elif a == z :
mb = a * mp
else :
mb = Mass(a,z)
if (mB == -404 or mb == -404 or mA == -404) :
return -404
else:
return mB + mb - mA
def Ex(AZ, maxMeV):
query = livechart + "fields=levels&nuclides=" + AZ
tempEx = lc_read_csv(query);
try :
return tempEx[['energy', 'jp']][tempEx['energy']<= maxMeV * 1000]
except:
return -404
'''
#===================================================
import cgi, cgitb
form = cgi.FieldStorage()
AZ = form.getvalue('isotopes_name')
maxEx = form.getvalue('maxEx')
if maxEx == "can be omitted" :
maxEx = -1
query = livechart + "fields=ground_states&nuclides=" + AZ
temp = lc_read_csv(query);
print( "Content-type:text/html\r\n\r\n")
print("")
print("")
print("")
print("
========================= " + AZ )
try :
Z = temp['z'][0]
N = temp['n'][0]
mass = Z*mp + N*mn - (Z+N)*temp['binding']/1000
halfLife = temp['half_life_sec'][0]
print("
A : %3d, Z : %3d, N : %3d" % (Z+N, Z, N))
print("
Jpi : %3s" % (temp['jp'][0]))
if halfLife != " " :
print(", half-live : %s sec" % (halfLife))
print("
Mass : %.4f MeV" % (mass))
print("
Binding : %.4f MeV/A" % (temp['binding']/1000))
print("
Binding : %.4f MeV" % (temp['binding']/1000*(Z+N)))
#print("
Sn : %8.3f MeV, Sp : %8.3f MeV" % (Sp(Z+N,Z, 1, 0), Sp(Z+N,Z, 1, 1)))
#print("
S2n : %8.3f MeV, S2p : %8.3f MeV, Sd : %8.3f MeV" % (Sp(Z+N,Z, 2, 0), Sp(Z+N,Z, 2, 2), Sp(Z+N, Z, 2, 1)))
#print("
S3n : %8.3f MeV, S3p : %8.3f MeV, St : %8.3f MeV, S(3He) : %8.3f MeV" % (Sp(Z+N,Z, 3, 0), Sp(Z+N,Z, 3, 3), Sp(Z+N, Z, 3, 1), Sp(Z+N, Z, 3, 2)))
#print("
S4n : %8.3f MeV, S4p : %8.3f MeV, Sa : %8.3f MeV" % (Sp(Z+N,Z, 4, 0), Sp(Z+N,Z, 4, 4), Sp(Z+N, Z, 4, 2)))
#print(" magnetic dipole : " + temp['magnetic_dipole'][0] + " mu.N")
#print("electric quadruple : " + temp['electric_quadrupole'][0] + " barn")
#if halfLife > 0 :
# print('------------ decay mode:')
# for i in range(1, 4) :
# print("%5s %s %%" % (temp["decay_%d" % i][0], temp["decay_%d_%%" % i][0]))
# print('--------------------------')
except :
print("
No such Isotopes.")
print("
=============================")
if float(maxEx) > 0 :
print("
")
query = livechart + "fields=levels&nuclides=" + AZ
tempEx = lc_read_csv(query);
ex = tempEx['energy']
jp = tempEx['jp']
l = ex.last_valid_index()
try :
print("")
for i in range(0, l+1):
if float(ex[i]) < float(maxEx)*1000:
print("| %9.3f | %s |
" % (ex[i], jp[i]))
else:
break
print("
")
except:
print("
cannot find Ex data")
print("")
print("")