MIL-PRF-1/1049H
TABLE I. Testing and inspection.
MIL-STD-
Acceptance
Limits
1311
Inspection
Method
Conditions
Level 23/
Symbol
Min
Max
Unit
Conformance inspection,
part 1
Shock
---
6/
----
---
----
---
---
Irradiation surge
---
7/
----
----
----
----
----
8/
----
CI
15
----
----
Conversion index
---
Conversion index decay
---
4/ 5/
----
----
----
----
----
Conversion index to
---
5/ 9/
----
CI/B
4
---
---
background
Alignment and image shift
---
10/
----
----
----
----
----
Center resolution
---
11/ 12/
---
Res
50
---
1-p/mm
11/ 12/
---
Res
12
---
1-p/mm
Peripheral resolution
---
Center magnification
---
13/
---
Cmx
0.742
0.790
---
14/
---
---
9
13
%
Distortion
---
Cathode and screen spots
---
5/ 15/
----
----
----
----
----
Breakdown
---
5/ 16/
----
----
----
----
----
µA
Dark current
---
Light flux = 0
---
Llk
---
0.02
5/ 17/
Conformance inspection,
part 2
Cathode and screen
---
18/
2.5
----
----
----
----
uniformity
Vibration (1)
---
19/ 22/
1
----
----
----
----
Vibration (2)
---
20/ 22/
2.5
----
----
----
----
21/ 22/
1
----
----
----
----
Temperature cycling and
---
thermal shock
Permanence of marking
1105
---
----
----
----
----
1/ Unless otherwise specified, the radiation source shall be a tungsten filament lamp operated at a color temperature of 2,854°K. A
Corning No. 2540 filter (melt No. 1613, of .103 inch (2.61 mm) thickness), or equivalent, shall be placed between the radiation
source and the photocathode. The quantity of radiation from the source incident on the photocathode for the individual tests shall be
the amount stated in the note describing the particular test.
2/ The period of time of ib for any single period shall not exceed 2 minutes, and the tube shall not be subjected to more than 10 such
periods during its life.
3/ The tube shall be held for a manufacturer's stabilizing period of at least 2 weeks. Prior to this period, the temperature, vibration, and
shock tests shall be made; at the end of the two-week period, the irradiation surge and initial conversion index tests shall be made in
the order listed. (See 4/).
2
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