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   82132
   The evolution of the cluster X-ray temperature function has been used
   extensively to constrain cosmological parameters. This test requires
   both local and distant samples of clusters with measured temperatures.
   The local temperature function has been determined by several authors
   with good agreement. However the distant sample comes from only one
   survey, the EMSS. We propose to determine an entirely new distant
   cluster temperature function in order to investigate systematic
   effects. Our new sample comes from the recently completed North
   Ecliptic Pole (NEP) survey in which all object are within ~4.5 degrees
   of the NEP.
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