COLLINEAR FAST-BEAM LASER SPECTROSCOPY EXPERIMENT - MEASUREMENT OF HYPERFINE-STRUCTURE AND ISOTOPE SHIFTS IN XE-II

The fast-beam laser system described in this paper has been shown to achieve the accuracy required to make studies of the hyperfine structure and isotope shifts of series of isotopes. In this paper the system is described in some detail. Test results on a series of Xe isotopes are shown and discussed. The hyperfine structure of **1**2**9**,**1**3**1Xe in their 5d **4D//7/////2 and 6p **4P//5/////2 levels along with isotope shifts for **1**2**8**-**1**3**1**, **1**3**4**, **1**3**6Xe relative to **1**3**2Xe are compared with previous results. Also, delta LT AN BR r**2 RT AN BR **1**3**2**,**A are deduced from the isotope shift results.