A NOVEL CRYOGENIC PHOTOACOUSTIC CELL

Authors
ALKHAFAJI HH WILLIAMS AW MORGAN CG
Citation
Hh. Alkhafaji et al., A NOVEL CRYOGENIC PHOTOACOUSTIC CELL, Measurement science & technology, 4(8), 1993, pp. 870-873
Citations number
18
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
4
Issue
8
Year of publication
1993
Pages
870 - 873
Database
ISI
SICI code
0957-0233(1993)4:8<870:ANCPC>2.0.ZU;2-P
Abstract
The design and construction of a novel cryogenic cell which may be use d to carry out photoacoustic measurements on either opaque or transpar ent samples is described. The design allows any temperature to be empl oyed within 0.5 K. Results for graphite test samples show the expected inverse frequency dependence of the photoacoustic signal, increase in signal with decreasing temperature and resonance effects at low tempe rature.