Control of ultralow pressures: an absolute thermodynamic manometer

Taborek, Peter and Goodstein, David (1979) Control of ultralow pressures: an absolute thermodynamic manometer. Review of Scientific Instruments, 50 (2). pp. 227-230. ISSN 0034-6748. https://resolver.caltech.edu/CaltechAUTHORS:TABrsi79

Preview

PDF - Published Version
See Usage Policy.
373Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:TABrsi79

Abstract

A method of accurately manipulating the pressure of helium gas in the range P=10^–1 to 10^–20 Torr, T<5 K is presented. The method requires only a very modest apparatus and makes use of thermodynamic measurements on the 4He–Grafoil system. A calibration curve and a pressure scale for the manometer are developed which will allow convenient application in other laboratories. An experiment which utilizes the technique is briefly disscussed.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1063/1.1135792	DOI	UNSPECIFIED

Additional Information:

Copyright © 1979 American Institute of Physics. (Received 7 August 1978; in final form, 13 October 1978) We would like to thank O. Vilches for sending us the unpublished vapor pressure isotherm and heat capacity data taken by the Washington group. We also thank M. Bretz for sending us heat capacity data prior to publication, and J. Greif for the use of several computer programs used to analyze the data. The assistance of Sai Wai Fu in taking the vapor pressure data is gratefully acknowledged.

Issue or Number:

Record Number:

CaltechAUTHORS:TABrsi79

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:TABrsi79

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

10369

Collection:

CaltechAUTHORS

Deposited By:

Archive Administrator

Deposited On:

01 May 2008

Last Modified:

03 Oct 2019 00:09

Repository Staff Only: item control page