| Abstract: | A system is described which uses a minicomputer to control a surface ionization mass spectrometer in the peak switching mode, with the object of computing isotopic abundance ratios of elements of geologic interest. The program uses the BASIC language and is sufficiently flexible to be used for multiblock analyses of any spectrum containing from two to five peaks. In the case of strontium analyses, ratios are corrected for rubidium content and normalized for mass spectrometer fractionation. Although almost any minicomputer would be suitable, the model used was the Data General Nova 1210 with 8K memory. Assembly language driver program and interface hardware-descriptions for the Nova 1210 are included. |
| Genre: | USGS Numbered Series |
| ProdID: | 16098 |
| Citation Author: | Stacey, J. S.; Hope, J. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | ii, 48 leaves ;28 cm. |
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| Citation Publisher: | U.S. Dept. of the Interior, Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 75-127 |
| Citation Search Results Text: | A program for mass spectrometer control and data processing analyses in isotope geology; written in BASIC for an 8K Nova 1120 computer; 1975; OFR; 75-127; Stacey, J. S.; Hope, J. |
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| Citation Year: | 1975 |
| Type: | citation/reference |
| Text: | A program for mass spectrometer control and data processing analyses in isotope geology; written in BASIC for an 8K Nova 1120 computer; 1975; OFR; 75-127; Stacey, J. S.; Hope, J. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1975/0127/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1975/0127/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Dept. of the Interior, Geological Survey, |
