1 INTRODUCTION

2 QUASAR SAMPLE AND OBSERVATIONS
2.1 Radio properties

3 SAMPLE OF NAL SYSTEMS
3.1 Identification and measurement of CIV absorbers
3.2 Identification of other species
3.3 Completeness Limits

4 RESULTS
4.1 Equivalent Width Distribution
4.2 Velocity Offset Distributions
4.3 Absorber number density evolution dn / dz
4.4 Covering Fraction of the studied ions
4.5 Investigating the ionization structure of the absorbers

5 DISCUSSION
5.1 Characterizing the quasar radiation field

6 CONCLUSIONS