Section II. CALIBRATION OF NUCLEAR WEAPONS SUPPORT EQUIPMENT

TB 750-25

i. Status reports may be obtained from the supporting TSA as required. These

reports will indicate the latest status of owner/user TMDE in support channels.

Section II. CALIBRATION OF NUCLEAR WEAPONS SUPPORT EQUIPMENT

3-3. General. Support of nuclear weapons TMDE is the same as any other TMDE,

except as required by Appendix C, paragraph C-7e. The U.S. Army Industrial

Operations Command (IOC) evaluates all nuclear weapons TMDE entering into the U. S.

Army inventory. Calibration and repair requirements and the effect of calibration of the

TMDE on nuclear weapons reliability is determined by the IOC and the USATA.

Calibration procedures are developed depending on the critical or non-critical status of

the TMDE.

Section III. CALIBRATION OF MEDICAL X-RAY EQUIPMENT

3-4. General

a. The U.S. Army Medical Department (AMEDD) health care program relies on

calibrated TMDE to verify the accuracy of medical x-ray equipment used in the diagnosis

and treatment of patients in the program.

b. This section deals specifically with the following three categories of medical x-

ray TMDE used in support of hospital x-ray machines:

(1) X-ray high voltage instruments consist basically of a bipolar high voltage

divider with associated shunts and are used to verify peak anode and cathode voltage

and anode and filament current of x-ray generators under test. Examples of these types

of instruments (although not limited to these manufacturers) are the Machlett

Laboratories Dynalyzer, Models Y-1A, II, and III, and the General Electric High Voltage

Bleeder.

(2) X-ray radiation probe consists of an ionization chamber type radiation

transducer which produces a frequency dependent output pulse train proportional to

radiation intensity.

Examples of these probes (although not limited to these

manufacturers) are the Dynalyzer II and III radiation probe or the Victoreen model 660.

(3) General and special purpose measurement instrumentation instruments

are used to monitor the outputs from x-ray high voltage instruments and probes. The

TMDE in this category are basically voltmeters, counters, and oscilloscopes. The

dynalyzer II display unit is an example of a self-contained instrument capable of

providing full x-ray voltage unit readout.

3-3