CT HU Reference Table (Compounds)
This HU data table was calculated for compounds from the NIST database, using various CT x-ray spectra calculated via the TASMIP algorithm. The procedure for calculation can be found in the CT HU Calcuation Lab.
| Compound | Density (g/cm3) | Zeff | HU Range | Mean HU |
| A-150 Tissue-Equivalent Plastic | 1.127 | 7.09 | -11 → 4 | -4 |
| Adipose Tissue (ICRU-44) | 0.95 | 6.55 | -153 → -141 | -147 |
| Air, Dry (near sea level) | 0.001205 | 7.66 | -1000 → -1000 | -1000 |
| Alanine | 1.424 | 6.85 | 310 → 319 | 314 |
| B-100 Bone-Equivalent Plastic | 1.45 | 11.71 | 578 → 607 | 594 |
| Bakelite | 1.25 | 6.31 | 90 → 102 | 95 |
| Blood, Whole (ICRU-44) | 1.06 | 7.78 | 48 → 48 | 48 |
| Bone, Cortical (ICRU-44) | 1.92 | 13.38 | 1414 → 1511 | 1467 |
| Brain, Grey/White Matter (ICRU-44) | 1.04 | 7.72 | 20 → 22 | 20 |
| Breast Tissue (ICRU-44) | 1.02 | 7.15 | -42 → -35 | -38 |
| C-552 Air-equivalent Plastic | 1.76 | 7.72 | 660 → 670 | 665 |
| Cadmium Telluride | 6.2 | 50.18 | 21938 → 25707 | 23975 |
| Calcium Fluoride | 3.18 | 16.33 | 3889 → 4239 | 4079 |
| Calcium Sulfate | 2.96 | 15.25 | 3329 → 3600 | 3476 |
| 15 mmol L-1 Ceric Ammonium Sulfate Solution | 1.03 | 9.49 | 46 → 49 | 47 |
| Cesium Iodide | 4.51 | 54.04 | 16727 → 19704 | 18335 |
| Concrete, Ordinary | 2.3 | 11.99 | 1828 → 1937 | 1887 |
| Concrete, Barite (TYPE BA) | 3.35 | 42.57 | 7539 → 8630 | 8130 |
| Eye Lens (ICRU-44) | 1.07 | 7.43 | 34 → 37 | 35 |
| Ferrous Sulfate Standard Fricke | 1.024 | 7.94 | 34 → 36 | 35 |
| Gadolinium Oxysulfide | 7.44 | 59.66 | 27837 → 32572 | 30396 |
| Gafchromic Sensor | 1.3 | 6.43 | 150 → 165 | 156 |
| Gallium Arsenide | 5.31 | 32.06 | 13238 → 15193 | 14297 |
| Glass, Borosilicate (Pyrex) | 2.23 | 11.22 | 1682 → 1787 | 1739 |
| Glass, Lead | 6.22 | 73.41 | 24932 → 29281 | 27282 |
| Lithium Fluoride | 2.635 | 8.22 | 1377 → 1403 | 1391 |
| Lithium Tetraborate | 2.44 | 7.19 | 1191 → 1199 | 1195 |
| Lung Tissue (ICRU-44) | 1.05 | 7.74 | 36 → 37 | 36 |
| Magnesium Tetraborate | 2.53 | 8.34 | 1496 → 1534 | 1516 |
| Mercuric Iodide | 6.36 | 67.38 | 27179 → 32100 | 29836 |
| Muscle, Skeletal (ICRU-44) | 1.05 | 7.70 | 29 → 30 | 29 |
| Ovary (ICRU-44) | 1.05 | 7.72 | 41 → 41 | 41 |
| Photographic Emulsion (Kodak Type AA) | 2.2 | 33.69 | 3717 → 4223 | 3991 |
| Photographic Emulsion (Standard Nuclear) | 3.815 | 39.80 | 10054 → 11605 | 10894 |
| Plastic Scintillator, Vinyltoluene | 1.032 | 5.83 | -133 → -117 | -126 |
| Polyethylene | 0.93 | 5.70 | -222 → -201 | -212 |
| Polyethylene Terephthalate, (Mylar) | 1.38 | 6.71 | 248 → 253 | 250 |
| Polymethyl Methacrylate | 1.19 | 6.62 | 68 → 79 | 73 |
| Polystyrene | 1.06 | 5.84 | -107 → -92 | -100 |
| Polytetrafluoroethylene, (Teflon) | 2.25 | 8.46 | 1238 → 1281 | 1261 |
| Polyvinyl Chloride | 1.406 | 14.01 | 857 → 944 | 904 |
| Radiochromic Dye Film, Nylon Base | 1.08 | 6.28 | -56 → -41 | -49 |
| Testis (ICRU-44) | 1.04 | 7.69 | 28 → 29 | 28 |
| Tissue, Soft (ICRU-44) | 1.06 | 7.70 | 41 → 42 | 41 |
| Tissue, Soft (ICRU Four-Component) | 1 | 7.49 | -19 → -18 | -18 |
| Tissue-Equivalent Gas, Methane Based | 0.001064 | 6.80 | -1000 → -1000 | -1000 |
| Tissue-Equivalent Gas, Propane Based | 0.001826 | 6.56 | -1000 → -1000 | -1000 |
| Water, Liquid | 1 | 7.67 | 0 → 0 | 0 |