SPIRIT - A high resolution cosmic ray isotope spectrometer for SpacelabAn instrument to measure the isotopic abundances of cosmic ray nuclei with Z in the range 20-30 and A in the range 40-70 has been conceived. The instrument, named SPIRIT (Superconducting Passive Iron Isotope Telescope), will have the mass resolution (sigma less than 0.15 amu) and collecting power (151 sq m ster h for a 10 day flight) to detect and convincingly resolve isotopes as rare as 0.5% of the total abundance of each element. Both range and magnetic rigidity are measured by following tracks through an array of sheets of CR-39, a sensitive new track-recording plastic, which had been kept in fixed position at uniform temperature within the uniform field region of a large superconducting magnet.
Document ID
19810028131
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Tarle, G. (California Univ. Berkeley, CA, United States)
Price, P. B. (California Univ. Berkeley, CA, United States)
Shirk, E. K. (California, University Berkeley, Calif., United States)