USE OF ELECTRON FILTER TO REDUCE SKIN DOSE IN COBALT TELETHERAPY

Use of an agent to reduce scattering in skin.

BACKGROUND AND OBJECTIVE A method to increase light transport deeply into target areas of tissue would enhance both therapeutic and diagnostic laser applications. The effects of a hyperosmotic agent on the scattering properties of rat and hamster skin were investigated. STUDY DESIGN/MATERIALS AND METHODS A hyperosmotic agent, glycerol, was applied in vitro and in vivo to rat and hamster skin ...

Barc Develops Cobalt-60 Teletherapy Machine for Cancer Treatment

Human cancer is probably as old as the human race. For normal cells, the growth, division and death of cells occur in a controlled manner. Cancer cells on the other hand multiply in an uncontrolled way creating tumors. Tumors may replace healthy tissues and often start spreading to other parts of the body, leading to a lifethreatening situation. If untreated, most cancers lead to protracted suf...

Radioactive Cobalt-60 Teletherapy Machine – Estimates of Personnel Dose in Mock Emergency in Patient Release during “Source Stuck Situation”

Total body irradiation with a reconditioned cobalt teletherapy unit

While the current trend in radiotherapy is to replace cobalt teletherapy units with more versatile and technologically advanced linear accelerators, there remain some useful applications for older cobalt units. The expansion of our radiotherapy department involved the decommissioning of an isocentric cobalt teletherapy unit and the replacement of a column-mounted 4-MV LINAC that has been used f...

IMPLEMENTATION OF EXTENDED KALMAN FILTER TO REDUCE NON CYCLO-STATIONARY NOISE IN AERIAL GAMMA RAY SURVEY

Gamma-ray detection has an important role in the enhancement the nuclear safety and provides a proper environment for applications of nuclear radiation. To reduce the risk of exposure, aerial gamma survey is commonly used as an advantage of the distance between the detection system and the radiation sources. One of the most important issues in aerial gamma survey is the detection noise. Various...