| 000 | 00000nam 2200000za 4500 |
| 001 | 9.867332 |
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| 003 | CaOODSP |
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| 005 | 20221107162302 |
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| 007 | cr ||||||||||| |
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| 008 | 190118s1958 onca |o f|0| 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | 1 |aM38-1/15-1958E-PDF |
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| 100 | 1 |aAlexander, G. E. |
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| 245 | 12|aA radioactive dial marker for the Decca navigational aid |h[electronic resource] / |cby G. E. Alexander & G. G. Eichholz. |
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| 260 | |aOttawa : |bDepartment of Mines and Technical Surveys, |c1958. |
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| 300 | |aii, 8 p. : |bills. |
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| 490 | 1 |aMines Branch Research Report ; |vR 15. |
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| 500 | |aDigitized edition from print [produced by Natural Resources Canada]. |
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| 500 | |a"June 2, 1958." |
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| 500 | |aCover title. |
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| 520 | |a"A small auxiliary unit has been designed for use in conjunction with a Decca Navigational System on survey flights. The unit is intended to trigger a relay system which actuates an aerial camera every time the dial pointer on the Decca dial passes through zero. For this purpose, the pointer tip has been coated with radioactive caesium-137 whose activity is detected by a Geiger tube located above the dial face"--Abstract, p. i. |
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| 692 | 07|2gccst|aMinerals |
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| 692 | 07|2gccst|aMetals |
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| 700 | 1 |aEichholz, G. G. |
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| 710 | 1 |aCanada. |bDepartment of Mines and Technical Surveys. |
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| 710 | 1 |aCanada. |bMines Branch. |
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| 830 | #0|aResearch report (Canada. Mines Branch)|vR 15.|w(CaOODSP)9.855660 |
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| 856 | 40|qPDF|s2.54 MB|uhttps://publications.gc.ca/collections/collection_2019/rncan-nrcan/m38-1/M38-1-15-1958-eng.pdf |
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