CI meas= -0.115 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.023 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.193,KPDmeas= 0.2103,KC= 0.1887 Ncalc = 1.48 - 1.53
Optical Data:
Uniaxial (+), w=1.536, e=1.545, bire=0.0090.
Calculated Properties of Ashcroftine-(Ce)
Electron Density:
Bulk Density (Electron Density)=2.66 gm/cc note: Specific Gravity of Ashcroftine-(Ce) =2.80 gm/cc.
Fermion Index:
Fermion Index = 0.0091086179 Boson Index = 0.9908913821
Photoelectric:
PEAshcroftine-(Ce) = 145.64 barns/electron U=PEAshcroftine-(Ce) x relectron= 387.45 barns/cc.
Radioactivity:
GRapi = 30,089.72 (Gamma Ray American Petroleum Institute Units)
Concentration of Ashcroftine-(Ce) per GRapi unit = 33.23 (PPM)
Ashcroftine-(Ce) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Radioactivity from Ashcroftine-(Ce) - weak
Specimen Size Weight/Volume (Sphere) *
Calculated Activity Bequerols (Bq)
Calculated Activity Curies (Ci)
Estimated Activity GR(api)
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 8.80 cm
665,052
1.80E-05
30,089.72
9.89
100 gm / 4.09 cm
66,505
1.80E-06
3,008.97
0.99
10 gm / 1.90 cm
6,651
1.80E-07
300.90
0.10
1 gm / 8.80 mm
665
1.80E-08
30.09
0.01
0.1 gm / 4.09 mm
67
1.80E-09
3.01
0.00
0.01 gm / 1.90 mm
7
1.80E-10
0.30
0.00
0.001 gm / 0.88 mm
1
1.80E-11
0.03
0.00
Weight of pure Ashcroftine-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.80 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
** Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 1.48 % Th) From Sum REE Elements (29.63 % REE)
Chemical Formula: 
- weak