MONITORING X-RAY TUBE OUTPUT WITH IONIZATION CHAMBER

Journal Article · Thu Oct 01 04:00:00 EDT 1959 · J. Phys. Soc. Japan

DOI:https://doi.org/10.1143/JPSJ.14.1321· OSTI ID:4213855

Tanaka, K; Chikawa, J; Yamanaka, T

The intensity of an x-ray beam can be stabilized by using and ionization chamber as a monitor which is placed between an x-ray tube and a specimen. The filament current of the tube is controlled to keep the output potential of the iorization chamber constant. The iorization chamber was designed in consideration of the response for wavelengths and the statistical fluctuation of the output voltuge. Thus. high stability of a demountable x-ray tube as well as of a sealed-off one was obtained without vigorous regulation of tube voltage. If an x-ray tube is operated at 40 kvp and tube voltage is stubilized within plus or minus 1%, the fluctuation of intensity can be limited to plus or minus 0.1%. The fluctuation of intensity in a broad diffraction line of a polycrystalline specimen which was measured for five hours could not be distinguished from the statistical fluctuation. The fluctuation of intensity in a diffraction line of a single crystal was plus or minus 0.2% for the sealed-off tube and plus or minus 0.5% for the demountable one. (auth)

• Research Organization: Kyoto Univ.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-001655
• OSTI ID: 4213855
• Journal Information: J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 14
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
CONTROL
CRYSTALS
CURRENTS
DIFFRACTION
ELECTRIC POTENTIAL
ELECTRON TUBES
ENGINEERING AND EQUIPMENT
FREQUENCY
IONIZATION CHAMBERS
RADIATION DOSES
STABILITY
STATISTICS
VARIATIONS
X RADIATION