Description Of Operation; Block Diagram - Golden engineering XR150 Operator's Manual

4.0

DESCRIPTION OF OPERATION

The block diagram below illustrates how the XR150 functions. The following sequence of events
takes place each time the XR150 is fired:
1. User initiates operation of the machine.
2. The control section sends a signal to the converter section to begin oscillating.
3. Once oscillating, the converter section changes the 7.2 volts DC to 22Khz AC.
4. The transformer charges the High Voltage Capacitor to about 8000 volts.
5. The spark gap arcs after the High Voltage Capacitor reaches proper voltage.
6. The pulse detector signals the control block that the unit has pulsed.
7. As the High Voltage Switch is closed, a high voltage transient of approximately 150,000 volts and
30 nanoseconds in duration is applied across the x-ray tube generating x-rays.
The closing of the High Voltage Switch produces an audible pulsing sound. The XR150 cannot
produce x-rays without the pulsing sound so it serves as an additional warning the XR150 is
functioning.
This unit generates x-rays through high voltage bombardment of a tungsten target. The XR150 does
not contain radioactive materials. All the high voltage is contained within the aluminum canister
and as long as the canister is not punctured the operator is not exposed to dangerous voltages.
USER
INTERFACE

BLOCK DIAGRAM

SPARK
GAP
PULSE
DETECTOR
CONTROLLER
7
X-RAY
TUBE
HIGH VOLTAGE
CAPACITOR
CONVERTER
BATTERY