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   PR # 21173
    It has been found that the gravitational lens models reproduce fairly
    well the observed properties of the triple radio source MG2016 112.  
    The models consist of lensing matter at the position of the two fore-
    ground galaxies at redshift 1.01 and in the form of a large pool of  
    matter associated with a surrounding unseen cluster. Here we propose 
    looking for this distant unkonwn lens cluster by detecting Xray emiss
    ion from the hot gas in the cluster.According to our model simulation
    results, 80ksec ASCA pointing observation could detect the Xray from 
    this lens cluster with more than 5\sigma levels. Successful detection
    of Xray from this lens cluster will be a record of distant Xray clust
    er and the first identification of a new class of objects, i.e. a lar
   ge matter pool with few galaxi
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