RADIATION DISTRIBUTION AROUND DUMBBELL AND INDIAN CLUB RADIUM NEEDLES

Journal Article · Sat Feb 01 04:00:00 EST 1964 · Radiology (U.S.)

OSTI ID:4117677

Hodara, M; Friedman, M

S>The radiation distribution around 2 types of commercially available dumbbell needles and one type of Indian club needle was measued. The results show that overloading a radium needle at one end (Indian club) or both ends (dumbbell) increases its efficiency in several ways: it lengthens the cylinder of irradiated tissue out to the end of the active source; it improves the homogeneity of dose distribution on the surface of a cylinder around the source; and it flattens the isodose curves so that they are more nearly parallel to the axis of the radiunr needle. In a singleplane implant, the employment of Indian club or dumbbell needles improves the efficiency in the following ways: it eliminates the necessity of a crossing needle at the open end; it lengthens the volume of tissue being irradiated; it increases the homogeneity of dose distribution; it produces a sharper fall-off in dosage beyond the active ends of the needles, as compared with a crossed-end implant with standard needles. (P.C.H.)

• Research Organization: Hospital for Joint Diseases, New York
• NSA Number: NSA-18-011928
• OSTI ID: 4117677
• Journal Information: Radiology (U.S.), Journal Name: Radiology (U.S.) Vol. Vol: 82; ISSN RADLA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BIOLOGY AND MEDICINE
CYLINDERS
DIAGRAMS
DISTRIBUTION
EFFICIENCY
INSTRUMENTS
MEASURED VALUES
RADIATION DOSES
RADIATIONS
RADIOISOTOPES
RADIOTHERAPY
RADIUM
TISSUES
TOOLS
VOLUME