CT HU Reference Table (Compounds, Unit Density)
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. For the calculation, all compounds were forced to have a density of 1 g/cm3.
| Compound | Zeff | HU Range | Mean HU |
| A-150 Tissue-Equivalent Plastic | 7.09 | -123 → -109 | -116 |
| Adipose Tissue (ICRU-44) | 6.55 | -109 → -96 | -103 |
| Air, Dry (near sea level) | 7.66 | -39 → -30 | -34 |
| Alanine | 6.85 | -80 → -74 | -77 |
| B-100 Bone-Equivalent Plastic | 11.71 | 88 → 108 | 99 |
| Bakelite | 6.31 | -128 → -119 | -124 |
| Blood, Whole (ICRU-44) | 7.78 | -12 → -12 | -12 |
| Bone, Cortical (ICRU-44) | 13.38 | 257 → 307 | 284 |
| Brain, Grey/White Matter (ICRU-44) | 7.72 | -19 → -17 | -18 |
| Breast Tissue (ICRU-44) | 7.15 | -60 → -54 | -57 |
| C-552 Air-equivalent Plastic | 7.72 | -57 → -51 | -54 |
| Cadmium Telluride | 50.18 | 2699 → 3307 | 3027 |
| Calcium Fluoride | 16.33 | 537 → 647 | 596 |
| Calcium Sulfate | 15.25 | 462 → 553 | 511 |
| 15 mmol L-1 Ceric Ammonium Sulfate Solution | 9.49 | 16 → 18 | 17 |
| Cesium Iodide | 54.04 | 2930 → 3590 | 3286 |
| Concrete, Ordinary | 11.99 | 229 → 276 | 254 |
| Concrete, Barite (TYPE BA) | 42.57 | 1548 → 1874 | 1725 |
| Eye Lens (ICRU-44) | 7.43 | -33 → -31 | -32 |
| Ferrous Sulfate Standard Fricke | 7.94 | 10 → 12 | 11 |
| Gadolinium Oxysulfide | 59.66 | 2875 → 3511 | 3219 |
| Gafchromic Sensor | 6.43 | -116 → -104 | -110 |
| Gallium Arsenide | 32.06 | 1680 → 2049 | 1879 |
| Glass, Borosilicate (Pyrex) | 11.22 | 202 → 249 | 227 |
| Glass, Lead | 73.41 | 3168 → 3867 | 3545 |
| Lithium Fluoride | 8.22 | -99 → -89 | -93 |
| Lithium Tetraborate | 7.19 | -103 → -99 | -100 |
| Lung Tissue (ICRU-44) | 7.74 | -13 → -12 | -12 |
| Magnesium Tetraborate | 8.34 | -14 → 1 | -6 |
| Mercuric Iodide | 67.38 | 3430 → 4203 | 3847 |
| Muscle, Skeletal (ICRU-44) | 7.70 | -20 → -19 | -19 |
| Ovary (ICRU-44) | 7.72 | -9 → -9 | -9 |
| Photographic Emulsion (Kodak Type AA) | 33.69 | 1143 → 1373 | 1268 |
| Photographic Emulsion (Standard Nuclear) | 39.80 | 1897 → 2303 | 2116 |
| Plastic Scintillator, Vinyltoluene | 5.83 | -160 → -144 | -153 |
| Polyethylene | 5.70 | -163 → -141 | -153 |
| Polyethylene Terephthalate, (Mylar) | 6.71 | -96 → -92 | -94 |
| Polymethyl Methacrylate | 6.62 | -102 → -93 | -98 |
| Polystyrene | 5.84 | -158 → -143 | -151 |
| Polytetrafluoroethylene, (Teflon) | 8.46 | -6 → 13 | 4 |
| Polyvinyl Chloride | 14.01 | 320 → 382 | 354 |
| Radiochromic Dye Film, Nylon Base | 6.28 | -126 → -113 | -120 |
| Testis (ICRU-44) | 7.69 | -12 → -11 | -11 |
| Tissue, Soft (ICRU-44) | 7.70 | -18 → -17 | -17 |
| Tissue, Soft (ICRU Four-Component) | 7.49 | -19 → -18 | -18 |
| Tissue-Equivalent Gas, Methane Based | 6.80 | -84 → -75 | -79 |
| Tissue-Equivalent Gas, Propane Based | 6.56 | -106 → -94 | -100 |
| Water, Liquid | 7.67 | 0 → 0 | 0 |