1. Waltham, Massachusetts-based Hologic Inc . also makes bone densitometers . 2. There also are various electronic densitometers that will measure crown or foliage density. 3. Dot gain can be measured using a densitometer and color bars in absolute percentages. 4. The corresponding measuring device is called a densitometer ( " absorptiometer " ). 5. Hologic competes in the bone densitometer market with companies including Norland Medical Systems and Lunar Corp. 6. Densitometers are used in photographic reproduction.7. A Lithotripter Centre was opened and a bone densitometer was added to the facilities of Diagnostic Imaging Department. 8. In 2015, Industrial Tomography Systems launched their industry changing Densitometer , a system which uses no nuclear power sources. 9. Its bone densitometers are used in the diagnosis and monitoring of metabolic bone diseases such as osteoporosis to measure bone density. 10. The other boom carried a backscatter densitometer that was used to infer the density of the lunar near-surface regolith.