NCalc= 1.77 - from Gladstone-Dale relationship (KC = 0.1667) where Ncalc=Dcalc*KC+1 NCalc= 1.67 - from Gladstone-Dale relationship (KC = 0.1667) where Ncalc=Dmeas*KC+1
Calculated Properties of Rhabdophane-(Nd)
Electron Density:
Bulk Density (Electron Density)=4.17 gm/cc note: Specific Gravity of Rhabdophane-(Nd) =4.59 gm/cc.
Fermion Index:
Fermion Index = 0.06 Boson Index = 0.94
Photoelectric:
PERhabdophane-(Nd) = 301.54 barns/electron U=PERhabdophane-(Nd) x relectron=1,257.09 barns/cc.
Radioactivity:
GRapi = 53,990.37 (Gamma Ray American Petroleum Institute Units)
Concentration of Rhabdophane-(Nd) per GRapi unit = 18.52 (PPM)
Rhabdophane-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
563.37 ±140.84 grams of pure Rhabdophane-(Nd) .
Estimated Radioactivity from Rhabdophane-(Nd) - 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 / 7.47 cm
1,248,321
3.37E-05
53,990.37
17.75
100 gm / 3.47 cm
124,832
3.37E-06
5,399.04
1.78
10 gm / 1.61 cm
12,483
3.37E-07
539.90
0.18
1 gm / 7.47 mm
1,248
3.37E-08
53.99
0.02
0.1 gm / 3.47 mm
125
3.37E-09
5.40
0.00
0.01 gm / 1.61 mm
12
3.37E-10
0.54
0.00
0.001 gm / 0.75 mm
1
3.37E-11
0.05
0.00
Weight of pure Rhabdophane-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.59 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 ( 2.79 % Th) From Sum REE Elements (55.73 % REE)
Chemical Formula: 
- weak