1、 MIL-PRF-32133 14 November 2003 SUPERSEDING A-A-58077 6 August 1996 PERFORMANCE SPECIFICATION X-RAY APPARATUS SET, RADIOGRAPHIC, INDUSTRIAL, PORTABLE, 160KVCP This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification c
2、ontains the technical and performance requirements for a light weight, portable, industrial x-ray apparatus set. These x-ray apparatus sets are intended for use in a military aircraft maintenance environment, which may be at fixed military bases, deployed to austere forward operating locations, or n
3、aval vessels afloat. This specification provides for first article testing described herein. 1.2 Classification. The x-ray apparatus set should conform to the following types: Type I - X-ray apparatus set with a panoramic, liquid-cooled tubehead. Type II - X-ray apparatus set with a directional, liq
4、uid-cooled tubehead. Type III - X-ray apparatus set with a directional, air-cooled tubehead. Type IV - X-ray apparatus set with a directional, hybrid liquid/air-cooled tubehead Comments, suggestions, or questions on this document should be addressed to: AFRL/MLS-OL, 4750 Staff Drive, Tinker AFB OK 7
5、3145-3317. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at www.dodssp.daps.mil. AMSC: N/A FSC 6635 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND Provided by IHSNot
6、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 22. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this sp
7、ecification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they a
8、re listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Depa
9、rtment of Defense Index of Specifications and Standards (DoDISS) and supplements thereto, cited in the solicitation (see 6.2). SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-PRF-28800 - Test Equipment for use with Electrical and Electronic Equipment, General Specification For (Unless otherwise indicated,
10、copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other government documents, drawings, and publications. The following government documents, drawings, and publ
11、ications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those specified in the solicitation. PUBLICATIONS Environmental Protection Agency (EPA) List of Pollutants/Toxics (Replacement to SD-14, Listing of Toxic Chemicals, Hazardous Substances,
12、and Ozone-Depleting Chemicals). See EPA website: http:/www.epa.gov/ebtpages/pollutants.html Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 3Code of Federal Regulations 1040.10 Laser Products. See Food and Drug Administration website: h
13、ttp:/www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfCFR/showCFR.cfm?CFRPart=1040tubehead current actual and set; exposure time elapsed/remaining and set. 4.5.4.3 Test control unit to ensure continuously adjustable over the range of 20-160kVcp in 5kV steps minimum and 0.1-5.0 mA in 0.1mA steps. 20kV, h
14、ighest achievable mA: _ 160kV, highest achievable mA: _ 0.1mA, lowest achievable kV: _ 5.0mA, highest achievable kV: _ 4.5.4.4 Using ASTM E 1165, pinhole camera method, measure the effective total focal spot size for directional tubeheads, to ensure it is no greater than 0.060 square inches. Actual
15、size: _ 4.5.4.5 Using a ratemeter with a probe installed in a 2.5 inch lead tube, place the probe 19.6 inches from the center of the anode, energize the tubehead to 160kVcp/5mA, and ensure the radiation output is a minimum of 230 Roentgens per minute for directional tubeheads or 14 Roentgens per min
16、ute for panoramic tubeheads. Actual output at 160kVcp/5mA: _ Note: Contact the governments cognizant engineer for acceptable ratemeters. 4.5.4.6 Change tubehead types for each control unit and re-accomplish paragraph 4.5.4.5 to ensure radiation output does not vary by more than +/- 3 percent. Actual
17、 output at 160kVcp/5mA: _ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 114.5.4.7 Repeat paragraph 4.5.4.5 with 0.50 inch thick aluminum plate between probe and tubehead and ensure the radiation output is a minimum of 13 Roentgens per
18、 minute for directional tubeheads or 6 Roentgens per minute for panoramic tubeheads. Actual output at 160kVcp/5mA: _ 4.5.4.8 Using the ratemeter with a probe, place the directional tubehead (N/A for panoramic) in a horizontal position with the beryllium window facing down and blocked with 25 half-va
19、lue-layers of lead. Using a mechanical probe drive, plot the leakage rate in polar coordinates at 39.37 inches away from the tubehead. Ensure the leakage radiation is less than 2.0 roentgens per hour. Actual minimum leakage radiation: _ Actual maximum leakage radiation: _ 4.5.4.9 Ensure the x-ray ap
20、paratus shall produce a H&D density of not less than 2.0 through 2.0 inches of 1000-series aluminum at a source to film distance of 36 inches in 3 minutes or less using Kodak type M100 or equivalent film at 160kVcp/5mA. Actual film density: _ 4.5.4.10 Ensure the x-ray apparatus shall be capable of s
21、howing a 0.010 inch hole in a 0.010 inch thick penetrameter placed on 1.0 inch thick block of 1000-series aluminum at a source to film distance of 36 inches on Kodak type M100 or equivalent film with less than a 10 minute exposure. Procedure kVcp: _ Procedure mA: _ Procedure time: _ 4.5.4.11 Ensure
22、the directional (N/A for Type I) x-ray apparatus shall be capable of showing a density difference of 2.5 H&D units between aluminum foil 0.003 inches and 0.030 inches thick at a source to film distance of 36 inches on Kodak type M100 or equivalent film with less than a 10 minute exposure. Procedure
23、kVcp: _ Procedure mA: _ Procedure time: _ 0.003” H&D Density: _ 0.030” H&D Density: _ 4.5.4.12 Ensure the x-ray apparatus shall be capable of operating with the tubehead 100 feet above the cooling unit (N/A on Type III). Operate the unit at 160kV/5mA for ten successive operating cycles of 5 minutes
24、on and 1 minute off. Any overheat condition is evidence of failure. 4.5.4.13 Ensure the cooler unit flow sensor is operational by operating the system at 100kVcp/5mA and disconnecting the cooler hose. If the system does not cease x-ray generation Provided by IHSNot for ResaleNo reproduction or netwo
25、rking permitted without license from IHS-,-,-MIL-PRF-32133 12in 10 seconds and/or is capable of further operation until the coolant flow is restored, this is evidence of failure. 4.5.4.14 Ensure the x-ray apparatus set is compatible with x-ray safety interlock, NSN 6635-01-508-1519RN. 4.5.4.15 Ensur
26、e the x-ray apparatus set will operate for a Failure-Free Operating Period (FFOP) of a minimum of 250 hours of random x-ray generation and 750 hours of power-on stand-by. 4.5.5 Environmental Tests: 4.5.5.1 Low Temperature Ambient Operational Test. 4.5.5.1.1 The unit shall be placed in an environment
27、al chamber with thermocouple attached to the tubehead. The temperature shall be reduced to zero degrees Fahrenheit (0oF) and allowed to stabilize. The unit shall be cold soaked for four hours. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Radiation intensity shall be within
28、10% of baseline determined in paragraph 4.5.4.5 Actual cold soak radiation intensity: _ 4.5.5.2 High Temperature Ambient Operational Test. 4.5.5.2.1 The unit shall be placed in an environmental chamber with thermocouple attached to the tubehead. The temperature shall be increased to 120oF and allowe
29、d to stabilize. The unit shall be heat soaked for four hours. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Radiation intensity shall be within 10% of baseline determined in paragraph 4.5.4.5 Actual heat soak radiation intensity: _ 4.5.5.3 Storage Temperature Test. 4.5.5.3.1
30、 Place all components in ruggedized transit cases, with thermocouple attached to tubehead. 4.5.5.3.2 The unit shall be placed in an environmental chamber with thermocouple attached to the tubehead. The temperature shall be reduced to minus 30 degrees Fahrenheit (-30oF) and allowed to stabilized. The
31、 unit shall be cold soaked for four hours. 4.5.5.3.3 The temperature shall be increased to 160oF and allowed to stabilize. The unit shall be heat soaked for four hours. 4.5.5.3.4 After the unit has returned to room temperature, perform radiation intensity test in accordance with paragraph 4.5.4.5. R
32、adiation intensity shall be within 10% of baseline determined in paragraph 4.5.4.5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 13Actual radiation intensity after storage: _ 4.5.5.4. Ruggedized transit case water resistance test. 4.5
33、.5.4.1 Secure cases to bottom of test tank. 4.5.5.4.2 Fill tank unit top of case is covered with 2 inches of water. 4.5.5.4.3 The unit shall be soaked for four hours. 4.5.5.4.4 Drain tanks. 4.5.5.4.5 Inspect cases for water intrusion. Water intrusion, exceeding 1 fluid ounce per case, is cause for f
34、ailure. 4.5.6 Electrical Tests: 4.5.6.1 Electronically inspect for automatic adaptation of input voltage using variable power supply. Radiation intensity shall be within 10% of the power-corrected baseline determined in paragraph 4.5.4.5. 4.5.6.1.1 Adjust line voltage to 100 VAC and 60 Hz. Perform r
35、adiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.2 Adjust line voltage to 130 VAC and 60 Hz. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.3 Adjust line voltage to 200 VAC and 60 Hz. Per
36、form radiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.4 Adjust line voltage to 250 VAC and 60 Hz. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.5 Adjust line voltage to 100 VAC and 50 H
37、z. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 14Actual radiation intensity: _ 4.5.6.1.6 Adjust line voltage to 130 VAC and 50 Hz. Perform radiation intensity te
38、st in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.7 Adjust line voltage to 200 VAC and 50 Hz. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.1.8 Adjust line voltage to 250 VAC and 50 Hz. Perform radiation intens
39、ity test in accordance with paragraph 4.5.4.5. Actual radiation intensity: _ 4.5.6.2 Electronically inspect for transient voltage performance using variable power supply. Radiation intensity shall be within 10% of the power-corrected baseline. 4.5.6.2.1 Adjust line voltage to 130 VAC and 60 Hz. Perf
40、orm radiation intensity test in accordance with paragraph 4.5.4.5. Actual baseline radiation intensity: _ 4.5.6.2.2 Quickly increase voltage to a transient value of 149.5 VAC for approximately 0.5 seconds and quickly retur n to 130 VAC. Observe equipment performance and perform radiation intensity t
41、est in accordance with paragraph 4.5.4.5. Actual radiation intensity transient 1: _ 4.5.6.2.3 Repeat paragraph 4.5.6.2.2 four more times at two minute intervals. Actual radiation intensity transient 2: _ Actual radiation intensity transient 3: _ Actual radiation intensity transient 4: _ Actual radia
42、tion intensity transient 5: _ 4.5.6.2.4 Adjust line voltage to 103.5 VAC and 60 Hz. Perform radiation intensity test in accordance with paragraph 4.5.4.5. Actual baseline radiation intensity: _ 4.5.6.2.5 Quickly decrease voltage to a transient value of 80.5 VAC for approximately 0.5 seconds and quic
43、kly return to 103.5 VAC. Observe equipment performance and perform radiation intensity test in accordance with paragraph 4.5.4.5. Actual radiation intensity transient 1: _ 4.5.6.2.6 Repeat paragraph 4.5.6.2.4 four more times at two minute intervals. Actual radiation intensity transient 2: _ Actual r
44、adiation intensity transient 3: _ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32133 15Actual radiation intensity transient 4: _ Actual radiation intensity transient 5: _ 4.5.6.3 Electronically inspect for transient frequency performance using variable power supply. Radiation intensity
