BeppoSAX study of the X-ray binary XB 1832-330 located in the globular cluster NGC 6652

Results of a 2001 March 17-20 BeppoSAX observation of the X-ray binary XB18 32-330 located in the globular cluster NGC6652 are presented. In contrast t o the majority of luminous globular cluster X-ray sources, the (0.1-200 keV ) BeppoSAX spectrum cannot be fit with a disk-blackbody and COMPTT Comptoni zation model, unless partial covering is included. This confirms the ASCA d etection of partial covering by Mukai & Smale (2000). The best-fit spectral parameters are similar to those of the globular cluster sources with orbit al periods of <1 hr, implying that XB1832-330 is also an ultra-compact syst em. A plausible optical candidate to XB1832-330 has recently been discovere d by Heinke et al. (2001) which shows evidence for possible 0.92, 2.22, or 4.44 hr periodicities. We find no evidence for any 2-10 keV periodic modula tion at any of these periods with a 2<sigma> upper limit to the semi-amplit ude of any sinusoid of less than or similar to 1.5%.