Space-charge Effects in the Main Ring at 8 GeV.
Title | Space-charge Effects in the Main Ring at 8 GeV. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1988 |
Genre | |
ISBN |
This is a note on the effects of space-charge on particle behavior in the Main Ring. At first, to elucidate various basic points, an idealized model of the Main Ring was studied. Then the TEVLAT program was used, with a sample Main Ring lattice. The TEVLAT program was modified to include space-charge kicks. The idealized model mentioned above consisted of linear dynamics with localized nonlinear elements (thin sextupoles). The incoherent space-charge force was included as a series of kicks applied uniformly around the ring (because the space-charge force is not localized). The space-charge force changes the tune and the oscillation amplitude (action variable) of a particle. However, the effect of this was not fed back into the beam emittance (and thus the change to the space-charge force itself). Finally, synchrotron oscillations were included, and some brief results are presented. 2 refs., 12 figs.
Space-charge Effects in the Fermilab Main Ring at 8 GeV.
Title | Space-charge Effects in the Fermilab Main Ring at 8 GeV. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1989 |
Genre | |
ISBN |
I use computer tracking to investigate the effects of space-charge on particle motion in the Fermilab Main Ring at p = 8 GeV/c. The results are found to agree with the Laslett tuneshift formula. Simple model cases are also studied to speed up the tracking. The effects of synchrotron oscillations, via tune modulation and dispersion, are included. 2 refs., 5 figs.
Fermilab Report
Title | Fermilab Report PDF eBook |
Author | |
Publisher | |
Pages | 44 |
Release | 1989 |
Genre | Nuclear physics |
ISBN |
Energy Research Abstracts
Title | Energy Research Abstracts PDF eBook |
Author | |
Publisher | |
Pages | 424 |
Release | 1992-04 |
Genre | Power resources |
ISBN |
Use of Services for Family Planning and Infertility, United States, 1982
Title | Use of Services for Family Planning and Infertility, United States, 1982 PDF eBook |
Author | Gerry E. Hendershot |
Publisher | |
Pages | 982 |
Release | 1988 |
Genre | Birth control |
ISBN | 9780840602220 |
The 1982 statistics on the use of family planning and infertility services presented in this report are preliminary results from Cycle III of the National Survey of Family Growth (NSFG), conducted by the National Center for Health Statistics. Data were collected through personal interviews with a multistage area probability sample of 7969 women aged 15-44. A detailed series of questions was asked to obtain relatively complete estimates of the extent and type of family planning services received. Statistics on family planning services are limited to women who were able to conceive 3 years before the interview date. Overall, 79% of currently mrried nonsterile women reported using some type of family planning service during the previous 3 years. There were no statistically significant differences between white (79%), black (75%) or Hispanic (77%) wives, or between the 2 income groups. The 1982 survey questions were more comprehensive than those of earlier cycles of the survey. The annual rate of visits for family planning services in 1982 was 1077 visits /1000 women. Teenagers had the highest annual visit rate (1581/1000) of any age group for all sources of family planning services combined. Visit rates declined sharply with age from 1447 at ages 15-24 to 479 at ages 35-44. Similar declines with age also were found in the visit rates for white and black women separately. Nevertheless, the annual visit rate for black women (1334/1000) was significantly higher than that for white women (1033). The highest overall visit rate was for black women 15-19 years of age (1867/1000). Nearly 2/3 of all family planning visits were to private medical sources. Teenagers of all races had higher family planning service visit rates to clinics than to private medical sources, as did black women age 15-24. White women age 20 and older had higher visit rates to private medical services than to clinics. Never married women had higher visit rates to clinics than currently or formerly married women. Data were also collected in 1982 on use of medical services for infertility by women who had difficulty in conceiving or carrying a pregnancy to term. About 1 million ever married women had 1 or more infertility visits in the 12 months before the interview. During the 3 years before interview, about 1.9 million women had infertility visits. For all ever married women, as well as for white and black women separately, infertility services were more likely to be secured from private medical sources than from clinics. The survey design, reliability of the estimates and the terms used are explained in the technical notes.
Physics of Particle Accelerators
Title | Physics of Particle Accelerators PDF eBook |
Author | Margaret Dienes |
Publisher | |
Pages | 2398 |
Release | 1989 |
Genre | Batavia, IL |
ISBN |
Applications Of High Intensity Proton Accelerators - Proceedings Of The Workshop
Title | Applications Of High Intensity Proton Accelerators - Proceedings Of The Workshop PDF eBook |
Author | Rajendran Raja |
Publisher | World Scientific |
Pages | 361 |
Release | 2010-06-28 |
Genre | Science |
ISBN | 9814464449 |
This volume captures the contents of the talks given at the Workshop on Applications of High Intensity Proton Accelerators held at Fermilab Oct 19-21, 2009. This workshop brought together experts from a variety of disciplines to explore new and profound ways proton accelerators can be used in the future. The workshop explored uses of such a proton source for producing intense muon, kaon and neutrino beams as well as using the intense protons for new forms of nuclear reactors that go by the name Accelerator Driven Sub-critical systems that promise to increase our available nuclear fuel supply by orders of magnitude while at the same time solving the nuclear waste problem. Intense proton beams can also be used to produce short-lived nuclear isotopes that are important in the medical industry.