DOI Number :
Hits : 12

Kriostat Nitrogen Cair untuk Difraksi Neutron

Marsongkohadi & Anung Kuswono


Abstract. The design and construction of an all-metal liquid nitrogen cryostat for neutron diffraction experiments is described. The cryostat is made of stainless-steel and copper with 1 mm thick aluminum window. The liquid nitrogen container has a volume of eight liters, and is isolated from the surrounding atmosphere by a vacuum jacket, with a pressure of 2 x 10-4 torr. The mean evaporation rate of the liquid nitrogen is 1.3 liters per hour, whereas the cool down losses is two liters. The temperature of the sample is measured with a carbon resistor thermometer or a copper constantan thermocouple. A dipmeter is constructed of several carbon resistors. By filling the cryostat with fifteen liters of liquid nitrogen, the temperature of the sample is held constant 110°K, for nine hours.

Keywords:

Download Article
 
Bahasa Indonesia | English
 
 
 

Notification:

Begin on 10 October 2014 this website is no longer activated for article process in Journal of Mathematical and Fundamental Sciences, Journal of Engineering and Technological Sciences, Journal of ICT Research and Applications and Journal of Visual Art and Design. The next process will be proceeded under new website at http://journals.itb.ac.id.

For detail information please contact us to: journal@lppm.itb.ac.id.

 
       
       
       ITB Journal Visitor Number #26538136       
       Jl. Tamansari 64, Bandung 40116, Indonesia Visitor IP Address #       
       Tel : +62-22-250 1759 ext. 121 © 2011 Institut Teknologi Bandung       
       Fax : +62-22-250 4010, +62-22-251 1215 XHTML + CSS + RSS       
       E-mail : journal@lppm.itb.ac.id or proceedings@lppm.itb.ac.id Developed by AVE