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.
Peripheral neuropathy may affect only one nerve (called mononeuropathy), or many nerves (called polyneuropathy). Peripheral neuropathy may occur as a result of diseases like diabetes, cancer, underactive thyroid, or rheumatoid arthritis. Sometimes, no cause can be found for peripheral neuropathy. Peripheral neuropathy can affect muscle function and coordination, and may also make it difficult to swallow or breathe.