0020-4412/02/4504- $27.00 © 2002 åAIK “Nauka /Interperiodica” 0573 Instruments and Experimental Techniques, Vol. 45, No. 4, 2002, pp. 573–575. Translated from Pribory i Tekhnika Eksperimenta, No. 4, 2002, pp. 147–149. Original Russian Text Copyright © 2002 by Stishov, Sadkov. LABORATORY TECHNIQUES A Compact Hydraulic Press to Use with High-Pressure Devices for Neutron Scattering Studies S. M. Stishov 1, 2 , Yu. A. Sadkov 1 1 Vereshchagin Institute of High-pressure Physics, Russian Academy of Science, Troitsk, Moscow oblast, 142190 Russia e-mail: sergei@hppi.troitsk.ru 2 Los Alamos National Laboratory Received November 28, 2001 Abstract—A design of a compact hydraulic press enabling a minimal shielding of a neutron beam by massive press elements is described. B – B C – C Ä – Ä 8 A 7 6 5 4 3 2 1 280 A 305 9 132° C ∅210 C B B ∅170 158 62 ∅120 ∅120 ∅5 Fig. 1. The compact hydraulic press with a 200-t force: (1) power cylinder; (2) ram; (3) O-shaped rubber sealing ring; (4) supporting frame; (5) supporting block; (6) high-pressure cell; (7) threaded plug; (8) a neutron-beam entrance aperture for experiments in the axial geometry; and (9) hydraulic liquid feed inlet. High-power compact hydraulic presses with mas- sive supporting elements are normally used as sources of force in laboratory high-pressure units. Unfortunately, these elements make it difficult to use such presses in X-ray and neutron scattering experiments due to trivial shielding of a beam (see, e.g., [1, 2]). The