R7103: Difference between revisions
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(Mighty Oak nuclear test (1986) - photos and links) |
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{{Oscilloscope Sidebar |manufacturer=Tektronix | | {{Oscilloscope Sidebar | ||
series=7000-series scopes|model= R7103| | |manufacturer=Tektronix | ||
image=R7103 full-front-running.jpg| | |series=7000-series scopes | ||
caption=Tektronix R7103 | | |model=R7103 | ||
introduced=1984 | | |image=R7103 full-front-running.jpg | ||
discontinued=1990 | | |caption=Tektronix R7103 | ||
summary=1 GHz non-storage mainframe| | |introduced=1984 | ||
manuals= | |discontinued=1990 | ||
* [ | |summary=1 GHz non-storage mainframe | ||
|designers=Val Garuts;Gene Andrews;Hans Springer;John Addis;Wink Gross;Art Metz;Aris Silzars;Conrad Odenthal;Dave Morgan; | |||
|manuals= | |||
* [[Media:070-5039-00.pdf|R7103 Service Manual]] (360MB) | |||
}} | }} | ||
The '''Tektronix R7103''' is a 1 GHz mainframe, the rack-mount version of the [[7104]]. | The '''Tektronix R7103''' is a 1 GHz mainframe, the rack-mount version of the [[7104]]. | ||
horizontal. | It takes [[7000-series plug-ins]], two vertical and one horizontal. | ||
The scope employs a [[micro-channel plate]] CRT design to get good screen intensity at high sweep speeds with moderate acceleration voltage. | The scope employs a [[micro-channel plate]] CRT design to get good screen intensity at high sweep speeds with moderate acceleration voltage. | ||
Many R7103s were used in nuclear instrumentation, i.a. because | |||
<blockquote> | |||
''[The MCP] provides a gain in waveform brightness of several thousands. | |||
This level of brightness allows for a selection of film-processing combinations that are highly resistant to unwanted radiation.''<ref>https://www.osti.gov/servlets/purl/6731423 1990 Report: ''Oscilloscope photography at NTS (Nevada Test Site)''</ref> | |||
</blockquote> | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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==Links== | ==Links== | ||
*[ | * [https://www.eevblog.com/forum/reviews/tektronix-r7103-scope-teardown/ R7103 "teardown" with lots of internal pictures] | ||
==Pictures== | ==Pictures== | ||
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R7103 rear.jpg | R7103 rear.jpg | ||
</gallery> | </gallery> | ||
==Mighty Oak Nuclear Test Incident== | |||
<blockquote> | |||
''"MIGHTY OAK was conducted on April 10, 1986, below the surface of Rainier Mesa in the T-tunnel complex. Containment of MIGHTY OAK was satisfactory in that there was no accidental release of radioactivity to the atmosphere whatsoever. However, the tunnel grout in the near-cavity region was not sufficiently constrained. Failure of this plug led to the subsequent failure of the mechanical closure systems and to the eventual flow of cavity gas, plug material, and other debris down the line-of-sight (LOS) pipe to the experiment chamber and the tunnel complex beyond."'' | |||
<ref>https://www.osti.gov/servlets/purl/5363382</ref> | |||
</blockquote> | |||
The Mighty Oak containment failure in the tunnel reportedly destroyed 100+ oscilloscopes. | |||
<blockquote> | |||
''"All of the diagnostic equipment, and much of the construction equipment in the tunnel complex were lost as a result of heat damage and radiation contamination. At present, the loss of normally recoverable and reusable equipment is reported at approximately 32 million dollars."''<ref>https://www.osti.gov/servlets/purl/6607938</ref> | |||
</blockquote> | |||
($32M in 1986 is almost $84M in 2022 Dollars.) | |||
<gallery> | |||
434-SAN-A851203.jpg | Tek R7103s in instrumentation racks for the Mighty Oak nuclear test | |||
434-SAN-A860266.jpg | | |||
434-SAN-A860535.jpg | |||
434-SAN-A861300.jpg | Tektronix R7103 oscilloscopes destroyed in the Mighty Oak nuclear test | |||
</gallery> | |||
==References== | |||
<references /> | |||
{{CRTs|R7103}} | {{CRTs|R7103}} | ||