Ionization chamber

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863872

Walenta, Albert H ^[1]

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1. Port Jefferson Station, NY

An ionization chamber has separate drift and detection regions electrically isolated from each other by a fine wire grid. A relatively weak electric field can be maintained in the drift region when the grid and another electrode in the chamber are connected to a high voltage source. A much stronger electric field can be provided in the detection region by connecting wire electrodes therein to another high voltage source. The detection region can thus be operated in a proportional mode when a suitable gas is contained in the chamber. High resolution output pulse waveforms are provided across a resistor connected to the detection region anode, after ionizing radiation enters the drift region and ionize the gas.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• DOE Contract Number: EY-76-C-02-0016
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4264816
• OSTI ID: 863872
• Country of Publication: United States
• Language: English

Related Subjects

ionization
chamber
separate
drift
detection
regions
electrically
isolated
fine
wire
grid
relatively
weak
electric
field
maintained
region
electrode
connected
voltage
source
stronger
provided
connecting
electrodes
therein
operated
proportional
mode
suitable
gas
contained
resolution
output
pulse
waveforms
resistor
anode
ionizing
radiation
enters
ionize
electrically isolated
voltage source
output pulse
electric field
ionizing radiation
ionization chamber
relatively weak
suitable gas
wire grid
electrically isolate
fine wire
pulse waveforms
pulse waveform
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