# Copyright 2019 TerraPower, LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Californium is a synthetic element made in nuclear reactors.
It is interesting in that it has a large spontaneous fission decay mode that
produces lots of neutrons. It's often used as a neutron source.
"""
from armi.materials.material import SimpleSolid
from armi.utils import densityTools
[docs]class Californium(SimpleSolid):
name = "Californium"
[docs] def setDefaultMassFracs(self):
self.setMassFrac("CF252", 1.0)
[docs] def density3(self, Tk=None, Tc=None):
"""
https://en.wikipedia.org/wiki/Californium
"""
return 15.1 # g/cm3