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P8-2005-23
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CoolPower 5/100T. Š·¨µ¸ÉÉ ¶·¥¤´§´Î¥´ ¤²Ö ¶·µ¢¥¤¥´¨Ö ·¡µÉ ¶µ ´¥°É·µ´-
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¢ ³¶Ê²Ê, ¨§£µÉµ¢²¥´´ÊÕ ¨§ TiZr-¸¶²¢. ¡·§¥Í µÌ²¦¤¥É¸Ö ¶·¨ ¶µ³µÐ¨ É¥-
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µÌ²¦¤¥´¨¨ ¨ ´£·¥¢´¨¨.
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‘µµ¡Ð¥´¨¥ ¡Ñ¥¤¨´¥´´µ£µ ¨´¸É¨ÉÊÉ Ö¤¥·´ÒÌ ¨¸¸²¥¤µ¢´¨°. „Ê¡´, 2005
Chernikov A. N. et al. P8-2005-23
Shaft Cryostat on the Basis of a Closed-Circuit Refrigerator for
Neutron Powder Diffraction Studies in the Temperature Range 6Ä300 K
A description of a cryostat on the basis of the closed cycle refrigerator CoolPower
5/100T for operation in the temperature range 6.2Ä300 K is presented. The cryostat
is intended for a sample up to 18 mm in diameter and up to 100 mm of length.
The reload of the sample placed into the ampoule, which is made of TiZr alloy, is
performed at any temperature of the refrigerator with the help of an insert. Thermal
connection between the sample and the heat exchanger of the refrigerator second step
is performed with the help of heat exchange gas helium-4. The minimal temperature
of the sample is 6.2 K at the accuracy of the temperature stabilization of the sam-
ple 0.1 K. Measurement and temperature stabilization is performed by a controller
connected with a computer. Dependences of temperature measurements on time at
cooling and heating are presented. The shaft cryostat was developed to carry out the
experiments on neutron diffraction from powder samples.
The investigation has been performed at the Frank Laboratory of Neutron Physics,
JINR.
Communication of the Joint Institute for Nuclear Research. Dubna, 2005
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