The Lacunometer: A Device for the Semi-automatic Measurement of the Mean Gap Length Spectrum in Nuclear Emulsions; LACUNOMETRE: APPAREIL DE MESURE SEMI-AUTOMATIQUE DES LONGUEURS MOYENNES ET DU SPECTRE DES LONGUEURS DE LACUNES DANS LES EMULSIONS NUCLEAIRES
A description is given of the lacunometer, a device for the semi- automatic measurement of the mean gap length spectrum in nuclear emulsions. The stage of the microscope is driven by a pick-up motor. A cam moved by this motor produces electric pulses through a set of contacts. The pulses are transmitted by a Morse key to a system which gives the mean value and the differential spectrum of gap lengths. The use of switching circuits and selectors allows the construction of an apparatus much more simple and stable than those based on electronic devices. If the stage speed is kept at 0.4 mu m/sec, the error on mean gap lengih is 1 to 2% for plateau track and 3 to 4% for a four times greater blob density. (auth)
- Research Organization:
- E.P.U.L., Lausanne, Switzerland
- NSA Number:
- NSA-13-006711
- OSTI ID:
- 4283498
- Report Number(s):
- A/CONF.15/P/251
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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