Scattering is the primary loss mechanism offiber and the light scattered back to the OTDR provides the mechanism for OTDRtesting. The backscatter coefficient is a result of two major fiber characteristics, corediameter (or more correctly, mode fill in the core) and the material itself.
1 Cancers-peripheral neuropathy can occur in people with some cancer E.G: lymphoma and multiple myeloma. 2  Alcohol excess-high alcohol levels in the body cause nerve damage. 3  Chronic kidney disease-if the kidneys are not functioning normally, an imbalance of salts and chemicals can cause peripheral neuropathy.
These vitamin deficiencies can result in burning, tingling, pain or numbness in the legs and feet. Heavy metals, including lead and mercury, can cause peripheral neuropathy as well. Medications used to treat seizure disorders, certain antibiotics and antiviral drugs are also associated with peripheral neuropathy.