Impedance considerations for the Intense Pulse Neutron Source (IPNS) Rapid Cycling Synchrotron (RCS). Page: 4 of 12
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:
Injection/extraction energy (W;.', Wext) 50 MeV, 450 MeV
Injection/extraction frequency (fii, fext) 2.21 MHz, 5.14 MHz
Average machine radius, R 6.83 m
Bending radius, p 3.68 m
Initial Tunes v,,v, 2.25, 2.35
Lattice DOFDFO (combined fn. dipoles n=11.7)
Injected pulsewidth 70-80 as
Injected charge 3.6x1012 H- (0.58 C)
Extracted ulsewidth (FWHM) 38 ns
Extracted charge 3.2x1012 H (0.51 C)
Rep rate 30 Hz
Peak current 14 A
Bunching factor at extraction 0.19
Table 1: IPNS RCS parameters
d E = V($,0)- V(Os,0)+Vs ($)]
dt coo 2n
0O$= ho1t DE
where V(O,0) = Vof (0, 0), with
f($,0) = sin($) -3sin(2$ + 0).
The space-charge voltage term is expressed as,
Vsc ($) = -q dX($) Rg2 - L$2c2
d$ 12eO2 IR2
To quantitatively evaluate the effects of space-charge and second harmonic (SH) rf
on the bunch, the synchrotron numerical analysis program, CAPTURESPC[1,2] is
employed. CAPTURE_SPC solves the preceding equations with a second-order
"leap-frog" differencing algorithm:
Wn+1/2=Wn-1/2+~nu(f($nen)-f($sn,,0)+_2go h2t dk($)
21t 4nro Rys n d$ 4
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.
Brumwell, F. R.; Dooling, J. C. & McMichael, G. E. Impedance considerations for the Intense Pulse Neutron Source (IPNS) Rapid Cycling Synchrotron (RCS)., article, September 8, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc621175/m1/4/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.