The production of Lambda hypernuclei was studied in p+Bi reaction. The life
time of the produced heavy hypernuclei was measured by observation of delay
ed fission using the recoil shadow method. The measurements were performed
at 1.9 GeV proton energy whereas the background was determined at 1.0 GeV.
Upper limit for cross section for reported elsewhere component of a lifetim
e 2700 ps was estimated.