What is densitometry function?

What is densitometry function?

Densitometry provides the method and instrumentation for determining the optical density of objects.

What is the principle of densitometer?

Within a densitometer the light passes through the optical system bundled from a stabilized light source on the printed surface. The amount light absorbed depends on the ink density and pigmenting of the ink. The non-absorbed light penetrates the translucent (transparent) ink layer and is weakened.

What is a Densitometrist?

Certified Clinical Densitometrist (CCD®) is accredited by the National Commission for Certifying Agencies (NCCA) professional designation awarded to clinicians who meet specified knowledge requirements measured through a standardized testing process for the interpretation of bone densitometry.

What does a bone density test show you?

A bone density test determines if you have osteoporosis — a disorder characterized by bones that are more fragile and more likely to break. The test uses X-rays to measure how many grams of calcium and other bone minerals are packed into a segment of bone.

What is TLC densitometry?

TLC-Densitometry refers to the reading of the bands on the actual plate by a detector (e.g. UV/VIS). This is similar to HPLC, but in TLC we have no flow cell or column containing the sample bands.

What is densitometry imaging?

Bone densitometry, also called dual-energy x-ray absorptiometry, DEXA or DXA, uses a very small dose of ionizing radiation to produce pictures of the inside of the body (usually the lower (or lumbar) spine and hips) to measure bone loss.

What are the types of densitometer?

There are three basic types of densitometers: scanning densitometers, reflection densitometers, and transmission densitometers. A scanning densitometer often has separate, pre-set steps for mid-density (MD) and density difference (MD) measurements. A reflection densitometer measures light reflected back from a surface.

Which wave used in densitometer?

The gamma densitometry is a nondestructive testing method used to measure the density of civil engineering materials, which is based on the absorption of gamma-rays emitted by a radioactive source of Cesium, Cs137 (Huntzinger et al., 2009; Villain and Thiery, 2006). The basic principle of the test is shown in Fig. 6.9.

Does osteoporosis hurt?

Osteoporosis itself isn’t painful. But when the condition is severe, it can lead to fractures and other painful problems. The pain is usually more severe than the aches many people feel as they get older.