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Generator for radiological diagnostics

Abstract

A generator is described for X-ray diagnostics, with a high-voltage transformer with a primary coil connected or with the grid and a secondary coil feeding the X-ray tube and with a rectifier bridge situated in the primary circuit of the high-voltage transformer. The direct current branch of the rectifier bridge contains a filter capacitor and a thyristor which is opened and closed by means of a pulse duty factor determining the capacitor voltage and thus the voltage of the X-ray tube. An LC-tuned circuit is connected to the thyristor whose capacity is discharged to the conductive thyristor so that the thyristor is quenched via a free-wheel diode arranged in parallel to the thyristor. In this way, a high switching frequency of the thyristor and, consequently, a low ripple of the X-ray tube voltage is obtained.
Publication Date:
Oct 02, 1978
Product Type:
Patent
Report Number:
DE 2842947; A
Reference Number:
EDB-84-017114
Subject:
47 OTHER INSTRUMENTATION; 62 RADIOLOGY AND NUCLEAR MEDICINE; X-RAY EQUIPMENT; DIAGNOSTIC USES; SPECIFICATIONS; DIAGNOSTIC TECHNIQUES; X RADIATION; ELECTROMAGNETIC RADIATION; EQUIPMENT; IONIZING RADIATIONS; RADIATIONS; USES; 440300* - Miscellaneous Instruments- (-1989); 550602 - Medicine- External Radiation in Diagnostics- (1980-)
OSTI ID:
5592016
Country of Origin:
Germany
Language:
German
Availability:
Deutsches Patentamt, Muenchen, Germany, F.R.
Submitting Site:
HEDB
Size:
Pages: 9
Announcement Date:

Citation Formats

Seissl, J, Broenner, K, and Krause, H. Generator for radiological diagnostics. Germany: N. p., 1978. Web.
Seissl, J, Broenner, K, & Krause, H. Generator for radiological diagnostics. Germany.
Seissl, J, Broenner, K, and Krause, H. 1978. "Generator for radiological diagnostics." Germany.
@misc{etde_5592016,
title = {Generator for radiological diagnostics}
author = {Seissl, J, Broenner, K, and Krause, H}
abstractNote = {A generator is described for X-ray diagnostics, with a high-voltage transformer with a primary coil connected or with the grid and a secondary coil feeding the X-ray tube and with a rectifier bridge situated in the primary circuit of the high-voltage transformer. The direct current branch of the rectifier bridge contains a filter capacitor and a thyristor which is opened and closed by means of a pulse duty factor determining the capacitor voltage and thus the voltage of the X-ray tube. An LC-tuned circuit is connected to the thyristor whose capacity is discharged to the conductive thyristor so that the thyristor is quenched via a free-wheel diode arranged in parallel to the thyristor. In this way, a high switching frequency of the thyristor and, consequently, a low ripple of the X-ray tube voltage is obtained.}
place = {Germany}
year = {1978}
month = {Oct}
}