Limitations of the disk-and-washer structure Page: 3 of 5
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
0 02 04 06
STEM LENGTH /X
a. Q/Qq vi atea length for fixed diik length.
b. Q/Qo atea length for fixed nether
STEM DIAMETER /X
e. Q/Qq ii atea diameter for atav length ■
Study of 6 ■ 0.6 cavity quality
factor uiing a coaxial Model.
SUPERFISH liaulation Model with coaxial
geometry uied to atudy the R • 0.6 cavity.
reiulti with and without a itea. Variation of
atea length wai accomplished in two wayi, both
with elailar reiulti. The firat method,
Fig. 3a, wai to change tha wniher length keeping
the diek length or eoaxial cavity length fixed.
Figure 3b ahowi reiulti of calculation! for the
waiher length fixed and diik length or coaxial
cavity length changing. Both aethodi ihov that
thi length of the radial aupport atea ihould be
cloic to a quarter wavelength to achieve
approximately 9(2 Q/Qq- Reiulti not ihown in
the figure deaonitrated that the radial item
• hould be an odd Miltipla of X/4 in length,
the aaaller the Multiple the lower the lonei.
Figure 3c ahowi the ratio O/Qq ai a function
of itea diameter for a 0.26 X length atea. An
optiaua atea dlaeter of approximately 0.09 X
ii Indicated for thii geoaetry. For four
aupport iteaa thii would be equivalent to
approximately 0.043 X.
Thai* reiulti indicate that there ihould be
a raaonanca between the atea and the reit of the
cavity auch that the raionant frequency of the
atructure with a atea ihould cron through the
reionant frequency of a atealaai atructure ai
the atea length ii varied from, aav, X/S to
3X/8. It wai thui propoied to look for thii
Opt iav ZT^ for X/4 Radial Support!
Computetioni were alio done to investigate
the conaaquencei to effactiva ahunt lapedanee,
ZT^, when radial aupport ataaa auit ba
approximately X/4 long. An optiaua gap
between noaei no longer ean be aelectcd to
maxiaiie ZT^, beeauia the gap muit bo adjusted
to achieve tha required i/7 acealerating mode
frequency, x/2A. Va hold the frequency at
1330 KHt, and the . aiher radiua, Ry. equal to
the cavity radiua, Rg, ainui X/4. Figure 3
ahowi how ZT' variii ai a function of the
outer cylinder radiuc R^, for particle betas
from 0.4 to 1.0. Thara i' an optiaua Rc for
each beta that Maxlalaai *T‘, Table I lilts
aoaa of the calcualtad parameter! for different
Here’s what’s next.
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Schriber, S.O. & Potter, J.M. Limitations of the disk-and-washer structure, article, January 1, 1979; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1096125/m1/3/: accessed March 19, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.