A radiation emission shielding method for high intensity focus ultrasound probes

A radiation emission shielding method for high intensity focus ultrasound probes.

Electromagnetic compatibility (EMC) is a key issue in the design and development of safe and effective medical instruments. The treatment probes of high intensity focused ultrasound (HIFU) systems not only receive and transmit electromagnetic waves, but also radiate ultrasound waves, resulting in electromagnetic coupling. In this paper, an electromagnetic shielding method involving the enclosur...

A method for standardizing intensity modulated radiation therapy planning optimization for nasopharyngeal carcinoma

Background: To investigate a method for standardizing intensity modulated radiation therapy (IMRT) optimization for nasopharyngeal carcinoma (NPC), in order to reduce the influence of subjective factors. Materials and Methods: This study is based on example IMRT plans for NPC, which were randomly divided into data acquisition and data verification groups. Organs at risk (OARs) were analyzed for...

High-Intensity Focused Ultrasound –

Production of a novel high strength heavy concrete using tourmaline and galena for neutron and photon radiation shielding

Background: High density concrete is extensively used for efficient radiation attenuation in radiotherapy rooms and nuclear reactors. Over the past eight years, some efficient galena-based concrete samples for shielding X or gamma rays was produced. The goal of this study was to produce a novel high density concrete against neutron and photon radiations using tourmaline and galena. Materials an...

Optimizing Ultrasonic Intensity for High Intensity Focused Ultrasound Therapy