用于AMS测量^36Cl标准样品的研制

The natural ^36Cl (t1/2=3.01 × 10^5 a) as a geochrometer and long-live radioisotope tracer has its potential applications in geoscience. Accelerator mass spectrometry (AMS)is the most important tool for detection of naturally produced long-lived radioisotope. Absolute AMS-measurements of ^36Cl require reliable standards for calibration. This original solution of RM12492 was diluted for new AMS standards. All dilution solutions weremade gravimetrically.