Counting Efficiency of Gamma Rays in Counter Tubes

Journal Article · Wed Feb 15 04:00:00 EST 1961 · Journal of the Physical Society of Japan

DOI:https://doi.org/10.1143/JPSJ.16.152· OSTI ID:4087590

Suzuki, Tatsusaburo; Yuhara, Jiro

The counting efficiency of gamma rays in cylindrical counters and end- window counters is examined by means of a very toin sheet and a collimated fine pencil beam of gamma rays. The distribution of the number of gamma rays emitted from the thin slit is measured by means of an end-window counter or by the effect of the fine anode wire of the cylindrical counter. When the plane of thin sheet of gamma rays reaching from side to a cylindrical counter is parallel to the axis, the counting efficiency registers a maximum value at the position where the sheet of gamma rays is in contact with the inner surface of the counter, and a smaller value near the central wire, but when the pencil beam of gamma rays is parallel to the anode wire and the gamma rays entering the counter through the end window plate, the counting efficiency gives a maximum value at the anode wire and the inner surface of the counter. An average efficiency for a sheet of gamma rays which are in a plane perpendicular to the counter axis is also investigated.

• Research Organization: First Research and Development Center, Technical Research and Development H.Q., Japan Defense Agency, Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-011237
• OSTI ID: 4087590
• Journal Information: Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 2 Vol. 16; ISSN 0031-9015
• Publisher: Physical Society of Japan
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANODES
BEAMS
COUNTERS
EFFICIENCY
ENGINEERING AND EQUIPMENT
GAMMA RADIATION
MEASURED VALUES
WIRES