Quantcast Circuitry in a Typical X-Ray Machine - Fundamentals of X-Ray Physics

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
voltage compensators (devices number four and number five). The line-voltage
compensator meter (device number three) indicates the number of volts per turn on the
autotransformer. Now the voltage is impressed over all the turns of the autotransformer
(device number six). From here, it is channeled into three different circuits.
b. The first of the three is the primary circuit. The kV selectors (devices number
seven and number eight) select the voltage to be impressed on the primary circuit and,
in turn, the high-voltage circuit. After the kV has been selected, the kV meter
(prereading voltmeter) (device number nine) indicates what the resulting kV will be. The
timer circuit (device number ten) is also located in the primary circuit along with the
circuit breaker (device number 11). The voltage is then fed into the primary of the step-
up transformer (device number 12).
c. There are taps (points a and b) that connect the rectifier transformers with the
autotransformer. The lines from the autotransformer lead to the valve-tube (step-down)
transformers (device number 15). These transformers supply the increased amperage
needed by the tubes within the vacuum-tube rectification circuit (device number 14).
d. Taps c and d channel the voltage, taken off a certain number of turns of the
autotransformer, to the filament transformer (device number 17), which is used to
supply milliamperage in the filament circuit. This circuit is controlled by one of three
arrangements: a tap-selector resistor (device number 18A), an adjustable resistor
(device number 18B), or a choke coil (device number 18C). There is sometimes a
filament ammeter in this circuit, although it is not shown in figure 3-5.
e. On the secondary side of the high-voltage transformer (device number 12),
we find the high-voltage circuit. Within this circuit, we find the mA meter (device number
13), the bridge-type rectifier (device number 14), and the x-ray tube itself (device
number 16). All these are activated when the step-up transformer is activated, and the
exposure is actually being made.
MD0950
3-9



Medical News
In-Utero Methadone or Subutex Exposure Could Alter Gene Expression, Cause Severe Neonatal Abstinence Syndrome
Some infants born with neonatal abstinence syndrome (NAS) secondary to...
bumc.bu.edu
New iPhone app would aim to help military veterans readjust to civilian life
Dave Smith hit his lowest low in March 2012. The...
medicalxpress.com
Nasal Cell Transplant Leads to Snotty Spine
(MedPage Today) -- Surgeons removed cysts layered with actual snot...
medpagetoday.com
New analysis questions use of acute hemodialysis treatment
A common approach to treating kidney failure by removing waste...
medicalxpress.com
Maturing brain flips function of amygdala in regulating stress hormones
In contrast to evidence that the amygdala stimulates stress responses...
medicalxpress.com
Researchers pinpoint most common causes of dangerous eye infection post surgery and trauma
The most common cause of endophthalmitis, a potentially blinding condition...
medicalxpress.com
WHO: West Africa Ebola death toll rises to 1,350
Security forces acting on the president's orders used scrap wood...
medicalxpress.com
I, Intern: Starting With the Sickest
(MedPage Today) -- Jessica Hoy decided to pursue medicine while...
medpagetoday.com
Missing protein restored in patients with muscular dystrophy
Advances in the treatment of muscular dystrophy: For the first...
medicalxpress.com
Team develops treatment effective against lethal Marburg virus
For the first time, researchers at the University of Texas...
medicalxpress.com
Study identifies protein that helps prevent active tuberculosis in infected patients
UCLA-led study has identified a protein that appears to play...
medicalxpress.com
Early bottlenecks in developing biopharmaceutical products delay commercialization
An analysis of patented university inventions licensed to biotechnology firms...
medicalxpress.com
Severing nerves may shrink stomach cancers: Botox injections slow growth of tumors
(Medical Xpress)—Research from Columbia University Medical Center shows that nerves...
medicalxpress.com
Up to 30,000 in need of Ebola drugs by now, analysis shows
Up to 30,000 people would have required Ebola drugs in...
medicalxpress.com
Make the Diagnosis: Neck rash
(MedPage Today) -- A 45 year old patient in your...
medpagetoday.com
A surgeon battles her own unexpected complications
I first interviewed Stanford surgeon Sherry Wren, MD, a year and...
scopeblog.stanford.edu
Seals and sea lions likely brought tuberculosis to the Americas, new research shows
Tuberculosis is one of the most persistent and deadliest infectious...
medicalxpress.com
Survey finds veterans generally satisfied with mental health care
A survey of U.S. veterans receiving mental health services from...
medicalxpress.com
Recovery reversal seen in Oregon study of returning concussed athletes
When are athletes who have suffered concussions ready to return...
medicalxpress.com
Neonatal vitamin K refusal tied to nonimmunization
(HealthDay)—While neonatal vitamin K refusal is rare, parents who refuse...
medicalxpress.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +