X-ray generator for fast dose rate control

Patent · Tue Jun 01 04:00:00 EDT 1982

OSTI ID:6305684

Mester, H

An x-ray generator comprising two high voltage generators which supply a positive and a negative potential to the anode and cathode, respectively, of an x-ray tube. The high voltage generator connected to the cathode is connected in series with a grid-controlled electron tube. The x-ray tube has a grounded electrode between its anode and cathode. If the grid voltage of the electron tube is changed so that the anode potential decreases, then there is an increase in the x-ray tube voltage and an increase in the voltage between the anode and electrode of the x-ray tube, thus increasing the tube current. Tube current and voltage are thus varied in the same sense by modifying the grid voltage, thus producing a fast dose rate control.

• Assignee: U S Philips Corp
• Patent Number(s): US 4333011
• OSTI ID: 6305684
• Country of Publication: United States
• Language: English

Related Subjects

440100* -- Radiation Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANODES
CATHODES
CONTROL
CURRENTS
DOSE RATES
ELECTRIC GENERATORS
ELECTRIC POTENTIAL
ELECTRODES
ELECTRON TUBES
EQUIPMENT
GRIDS
MODIFICATIONS
X-RAY EQUIPMENT
X-RAY TUBES