Collection efficiency of an ionization chamber in a pulsed and magnetically swept electron beam: limits of validity of the two-voltage technique

Journal Article · · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.595538· OSTI ID:6140299

Conere, T J; Boag, J W

The two-voltage method of determining the collection efficiency of an ionization chamber exposed to a pulsed and magnetically swept electron beam depends upon the form of the saturation curve agreeing closely with the formula based on ionic conduction and negligible space charge. The possible disturbing effects of charge transport by free electrons and of overlapping pulses are discussed and the conditions to be satisfied for the reliable use of the method are defined and demonstrated experimentally.

• Research Organization: Riyadh Armed Forces Hospital, Kingdom of Saudi Arabia
• OSTI ID: 6140299
• Journal Information: Med. Phys.; (United States), Vol. 11:4
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ELECTRON DETECTION
IONIZATION CHAMBERS
EFFICIENCY
CHARGE COLLECTION
ELECTRON BEAMS
IONIC CONDUCTIVITY
BEAMS
CHARGED PARTICLE DETECTION
DETECTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LEPTON BEAMS
MEASURING INSTRUMENTS
PARTICLE BEAMS
PHYSICAL PROPERTIES
RADIATION DETECTION
RADIATION DETECTORS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments