Apparatus and method for locating and quantifying or directing a

Details Apparatus and method for locating and quantifying or directing a Apparatus and method for locating and quantifying or directing a

1975-11-07

1976-12-14

Willis, Davis L.

Radiant energy

Means to align or position an object relative to a source or...

G01N 2100

Patent

active

039977935

ABSTRACT:
An apparatus and method for locating or directing a source of ionizing radiation such as X-rays, gamma rays, alpha particles, beta particles, etc. The preferred embodiment detects and locates abnormalities of the body such as ocular melanomas by detecting the emission of radiation from a melanoma which has absorbed a radioactive medium. The apparatus includes an ultrasound probe which emits ultrasonic waves along a first axis and detects a returned portion of the waves. The ultrasound probe is associated with a display which displays the returned portion of the waves in the time domain so that suspected abnormalities can be located. The ultrasound probe is used to guide a directional probe for detecting and quantifying ionizing radiation which is equipped with a focusing collimator having a focal point along a second axis. The two probes are supported so that the first and second axes converge at the focal point of the collimator. A range marker is associated with the ultrasonic detector which indicates the point of convergence of the axes on the ultrasonic display permitting guidance of the radiation detecting probe to the suspected abnormality.

REFERENCES:
patent: 3861807 (1975-01-01), Le Screnier

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