PT Journal AU Hauer, V Boissin, JC Day, C Haas, H Mack, A Murdoch, D Lässer, R Wykes, M TI Design of the ITER torus prototype cryopump SO Fusion Engineering and Design PY 2007 BP 2113 EP 19 VL 82 DI 10.1016/j.fusengdes.2007.07.039 LA english ER