Open AccessD-Zero Collider Detector Cryopump Design and Operation
Author(s) -
Jiahong Wu,
G.T. Mulholland
Publication year - 1991
Language(s) - English
Resource type - Reports
DOI - 10.2172/1031807
Subject(s) - cryopump , cryostat , water vapor , nuclear engineering , liquid nitrogen , cryogenic temperature , detector , fabrication , materials science , engineering , electrical engineering , physics , meteorology , composite material , medicine , superconductivity , alternative medicine , pathology , quantum mechanics
The vacuum pumping of the CC Cryostat was anticipated to be dominated by a water vapor load. The Engineering Note 270, extrapolating from earlier experience, predicts the removal of water vapor will be the dominant pumping load and take ca. 45 days to remove at the pumping speed planned. Part of the planned pumping capability was a homemade, liquid nitrogen temperature, water vapor cryopump. This note describes the design, fabrication and performance experiences of the Cryopump described in the D0 assembly drawing 3740.514-ME-294693