Cryogenic cooling monochromators for the SPring-8 undualtor beamlines

Authors
Mochizuki, T Kohmura, Y Awaji, A Suzuki, Y Baron, A Tamasaku, K Yabashi, M Yamazaki, H Ishikawa, T
Citation
T. Mochizuki et al., Cryogenic cooling monochromators for the SPring-8 undualtor beamlines, NUCL INST A, 467, 2001, pp. 647-649
Citations number
3
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
467
Year of publication
2001
Part
1
Pages
647 - 649
Database
ISI
SICI code
0168-9002(20010721)467:<647:CCMFTS>2.0.ZU;2-B
Abstract
A cryogenic silicon 111 cooling system has been developed for the fixed exi t double-crystal monochromators. The first crystal is subjected to 76 W/mm( 2) with a total heat load of 693 W. The cooling of the crystals is contact cooling. Two types of the closed loop liquid nitrogen cooler are being used to cool the crystals. One is the system to cool the outer-surface of the c irculating nitrogen pipe with evaporation of liquid nitrogen. The other sys tem uses helium refrigerators to cool the circulating nitrogen, which was d eveloped for the SPring-8 standard undulator beamlines. (C) 2001 Elsevier S cience B.V. All rights reserved.