  We have carried out a study of temperature evolution during thermonuclear
bursts in LMXBs using broad band data from two instruments onboard BeppoSAX,
the MECS and the PDS. However, instead of applying the standard technique of
time resolved spectroscopy, we have determined the temperature in small time
intervals using the ratio of count rates in the two instruments assuming a
blackbody nature of burst emission and different interstellar absorption for
different sources. Data from a total of twelve observations of six sources were
analysed during which 22 bursts were detected. We have obtained temperatures as
high as ~3.0 keV, even when there is no evidence of photospheric radius
expansion. These high temperatures were observed in the sources within
different broadband spectral states (soft and hard).
