Calculation of the Mean Energy Loss in the BTA Stripping Foils and Comparison with Measurement

Following is a calculation of the mean energy lost by various ions in the BTA stripping foils. The calculation is based on the known thickness and density of the foils; the known energy of the ions incident on the foil; and the known energy loss rates for protons in the foil material. The results of the calculation are in good agreement with the measured revolution frequencies at Booster extraction and AGS injection. 1 Booster Extraction Parameters The nominal parameters for various ions at Booster extraction are summarized in Table 1. Here N is the number of nucleons, pb=N is the momentum per nucleon, W=N is the kinetic energy per nucleon, cb is the velocity, and fb is the revolution frequency. In terms of b we have pb = mbcb\nb; W = mbc 2 (\n b 1); fb = c b