LEIR: TOWARDS THE NOMINAL LEAD ION BEAM (2008)
M. Chanel, M. E Angoletta, V. Baggiolini, P. Belochitskii, A. Beuret, A. Blas, ...
The Low Energy Ion Ring (LEIR) is a central piece for LHC ion operation at CERN, transforming long Linac3 pulses into high density bunches needed for LHC. The first phase of LEIR commissioning...
THE LHC LEAD INJECTOR CHAIN (2008)
A. Beuret, J. Borburgh, A. Blas, H. Burkhardt, C. Carli, M. Chanel, ...
A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 10 27 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising...
Type testing of an extremity finger stall dosemeter based on Harshaw TLD EXTRADTM technology (2007)
Gilvin, P. J., Luo, L. Z., Baker, S. T., Hill, C. E., Rotunda, J. E.
A new type of extremity dosemeter, which incorporates the Harshaw TLD EXTRAD™ dosemeter element into a PVC finger stall, has been developed. The dosemeter uses high-sensitivity lithium fluoride,...
GTS-LHC: A New Source For The LHC Ion Injector Chain (2004)
Hill, C E, Küchler, D, Scrivens, R, Hitz, D, Guillemet, L, Leroy, R, ...
The ion injector chain for the LHC has to be adapted and modified to reach the design beam parameters. Up to now an ECR4 delivered the ion beam for the SPS fixed target physics programme. This source...
Characterisation and Performance of The CERN ECR4 Ion Source (2004)
Hill, C E, Andresen, C, Chamings, J A, Coco, V, Küchler, D, Lombardi, A M, ...
To optimise the heavy ion injector for the LHC, a good knowledge of the parameters of the ECR4 ion source and the beam transport in the Low Energy Beam Transport (LEBT) for a lead ion beam is...
The LHC Lead Injector Chain (2004)
Beuret, A, Borburgh, J, Blas, A, Burkhardt, H, Carli, Christian, Chanel, M, ...
A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 1027 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising...
Myoendothelial gap junctions may provide the pathway for EDHF in mouse mesenteric artery (2003)
Dora, K. A., Sandow, S. L., Gallagher, N. T., Takano, H., Rummery, N. M., Hill, C. E., ...
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Options for upgrading the intensity of the CERN lead pre-injector ion source (2002)
Hill, C E, Küchler, D, Kugler, H, Scrivens, R
CERN's heavy ion pre-injector has been in service since 1994, providing lead ions for fixed target collisions at 177 GeV per nucleon in the SPS. In the LHC era, heavy ion collisions require an...
New beam for the CERN fixed target heavy ion programme (2002)
Hill, C E, Küchler, D, O'Neill, M
The physicists of the CERN heavy ion community (SPS fixed target physics) have requested lighter ions than the traditional lead ions, to scale their results and to check their theories. Studies have...
Myoendothelial gap junctions provide a pathway for EDHF in the mesenteric artery of the mouse (2002)
Dora, K. A., Sandow, S. L., Ings, N. T., Takano, H., Hill, C. E., Garland, C. J.
Studies on ECR4 for the CERN ion programme (2001)
Hill, C E, Küchler, D, Scrivens, R, Wenander, F
The CERN heavy ion community, and some other high energy physics experiments, are starting to demand other ions, both heavy and light, in addition to the traditional lead ions. Studies of the...
Tests of the CERN proton linac performance for LHC-type beams (2000)
Feschenko, A V, Hill, C E, Lombardi, A M, Liou, A, Scrivens, R, Vretenar, Maurizio
As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this...
Tests of the CERN proton linac performance for LHC-type beams (2000)
Feschenko, A V, Hill, C E, Lombardi, A M, Liou, A, Scrivens, R, Vretenar, Maurizio
As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this...
Tests of the CERN Proton Linac Performance for LHC-Type Beams (2000)
Hill, C. E., Lombardi, A., Scrivens, R., Vretenar, M., Feschenko, A., Liou, A.
As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this...
Tests of the CERN Proton Linac Performance for LHC-Type Beams (2000)
Hill, C E, Lombardi, A M, Scrivens, R, Vretenar, Maurizio, Feschenko, A V, Liou, A
As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this...
The PS complex produces the nominal LHC beam (2000)
Benedikt, Michael, Blas, A, Borburgh, J, Cappi, R, Chanel, M, Chohan, V, ...
The LHC [1] will be supplied, via the SPS, with protons from the pre-injector chain comprising Linac2, PS Booster (PSB) and PS. These accelerators have under-gone a major upgrading programme [2]...
Effect of a Biased Probe on the Afterglow Operation of an ECR4 Ion Source (1999)
Hill, C E, Küchler, D, Wenander, F, Wolf, B H
Various experiments have been performed on a 14.5 GHz ECR4 in order to improve the ion yield. The source runs in pulsed afterglow mode, and provides currents ~120 emA of Pb27+ to the CERN Heavy Ion...
Report of the study group on a superconducting proton linac as a PS Injector (1999)
Boussard, Daniel, Cappi, R, Garoby, R, Haseroth, H, Hill, C E, Knaus, P, ...
A proposal was made at the end of 1996 to use the large inventory of RF hardware available after the decommissioning of LEP-2 for the construction of a 2 GeV Superconducting Proton Linac (SPL) to...
Feasibility study of a 2 GeV superconducting $H^{-}$ linac as injector for the CERN PS (1998)
Garoby, R, Haseroth, H, Hill, C E, Lombardi, A M, Ostroumov, P N, Tessier, J M, ...
This preliminary feasibility study is based on the availability of the CERN LEP2 superconducting RF system after LEP de-commissioning. The option that is explored is to use this system as part of a...
The high voltage system for the high intensity CERN proton source (1998)
For the RFQ injector mounted on the CERN 50 MeV proton linac, the source needs to provide about 300 mA of 100 keV beam in pulses of 20 to 150 micro sec at 1 Hz. Although the high voltage supply is...
Present performance of the CERN proton linac (1998)
Hill, C E, Lombardi, A M, Tanke, E, Vretenar, Maurizio
The original 1973 design specification of the CERN 50 MeV Proton Linac was for a 150 mA beam but this intensity was rarely used. Preliminary tests for the high brightness beam required for LHC...
Experiments on a 14.5 GHz ECR source (1997)
The 14.5 GHz ECR4 source supplied to CERN in the framework of the Heavy Ion Facility collaboration provided Pb27+ operational beams to a new heavy ion linac in 1994. This source, which operates in...
Operational experience with the CERN hadron linacs (1997)
Charmot, H, Dutriat, C, Hill, C E, Langbein, K, Lombardi, A M, O'Neill, M, ...
The present CERN proton linac (Linac2) was commissioned in 1978 and since that date has been the primary source of protons to the CERN accelerator complex. During the past 18 years, the machine has...
Experiments on a 14.5 GHz ECR source (1997)
The 14.5 GHz ECR4 source supplied to CERN in the framework of the Heavy Ion Facility collaboration provided Pb27+ operational beams to a new custom built linac in 1994. This source, which operates in...
Pulsed ECR Source in Afterglow Operation at CERN (1996)
A pulsed 14 GHz ECR4 source, adapted to operate in the afterglow mode, was delivered by GANIL to CERN in the framework of the Heavy Ion Facility Project. After four months of operation to commission...
Multi-Charged Ion Sources for Pulsed Accelerators (1996)
The relatively low duty cycle of pulsed accelerators can give rise to problems in matching the characteristics of multi-charged ion sources to the beam intensity required by the user. Heavy ion...
Haseroth, H, Hill, C E, Langbein, K, Shirkov, G D
A new library of the computer codes for the mathematical simulation of heavy ion production in the ECR ion source is presented. These codes are based on the equations of model of ion confinement and...
Performance of the ECR ion source of CERN's heavy ion injector (1995)
Bougarel, M P, Hill, C E, Haseroth, H, Langbein, K, Tanke, E
In fall 1994 the new heavy ion injector at CERN was brought into operation successfully and a lead beam of 2.9´107 ions per pulse was accelerated in the SPS up to an energy of 157 GeV/u. The ion...
Performance of the CERN Linac 2 with a high intensity proton RFQ (1995)
Hill, C E, Lombardi, A M, Pirkl, Werner, Tanke, E, Vretenar, Maurizio
Bartlett, D.T., Hessey, J.D., Burgess, P.H., Hill, C.E., McClure, D.R., Steele, J.D., ...
A modified design of dosemeter has been developed to measure the personal dose equivalent at 10 mm, Hp(10) for photon radiations. By means of a combination filter comprised of a plastic dome and an...
History, developments and recent performance of the CERN linac 1 (1992)
Haseroth, H, Hill, C E, Langbein, K, Tanke, E, Taylor, C, Têtu, P, ...
ISOLDE: a new client for the CERN PS Booster (1990)
Allardyce, Brian W, Billinge, Roy, Hill, C E, Metzger, C, Schindl, Karlheinz, Schönauer, Horst Otto, ...
The status of the electron cooling device for LEAR (1990)
Hütten, L, Poth, Helmut, Wolf, A, Haseroth, H, Hill, C E, Vallet, J L
Electron cooling of low-energy antiprotons and production of fast antihydrogen atoms (1990)
Wolf, A, Haseroth, H, Hill, C E, Vallet, J L, Habfast, C, Poth, Helmut, ...
Further results and evaluation of electron cooling experiments at LEAR (1990)
Poth, Helmut, Schwab, W, Seligmann, B, Wörtge, M, Wolf, A, Baird, S A, ...
Status and perspectives of the electron cooling device under construction at CERN (1990)
Habfast, C, Poth, Helmut, Seligmann, B, Haseroth, H, Hill, C E, Vallet, J L, ...
The electron cooling device developed for LEAR (1990)
Poth, Helmut, Habfast, C, Schwab, W, Seligmann, B, Wörtge, M, Wolf, A, ...
First results of electron cooling experiments at LEAR (1990)
Poth, Helmut, Schwab, W, Seligmann, B, Wörtge, M, Wolf, A, Baird, S A, ...
Status and first beam measurements on the CERN RFQ (1990)
Boltezar, E, Haseroth, H, Hill, C E, James, F, Pirkl, Werner, Stovall, J E, ...
Acceleration and stacking of alpha particles in the CERN Linac, PS and ISR (1990)
Bouthéon, M, Cappi, R, Haseroth, H, Hill, C E, Koutchouk, Jean-Pierre
Experimente zur Elektronenkuehlung am LEAR. (1989)
Poth, H., Schwab, W., Seligmann, B., Woertge, M., Wolf, A., Baird, S., ...
53.Physikertagung gemeinsam mit der Fruehjahrstagung DPG, Kern- und Hochenergie- physik, Energietechnik - Physikalische Grundlagen, Fachdidaktik der Physik, Gravitation und Relativitaetstheorie,...
Results from electron cooling experiments at LEAR. (1988)
Poth, H., Schwab, W., Seligmann, B., Woertge, M., Wolf, A., Haseroth, H., ...
Fruehjahrstagung DPG, Kern- und Mittelenergiephysik, Physikausstellung, Berlin, 21.-25.Maerz, 1988
A feasibility study for antihydrogen production. (1987)
Conti, R., Frieze, B., Gidley, D., Rich, A., Van House, R., Zitzewitz, P., ...
Internat.Symp.on Medium Energy Physics, Beijing, RC, June 23-27, 1987
The electron cooling device developed for LEAR. (1987)
Habfast, C., Poth, H., Schwab, W., Seligmann, B., Woertge, M., Wolf, A., ...
4th LEAR Workshop, Villars-sur-Ollon, CH, September 6-13, 1987
Study of antihydrogen production and experiments with atomic antimatter. (1987)
Conti, R., Frieze, B., Gidley, D., Rich, A., Skalsey, M., Van House, J., ...
4th LEAR Workshop, Villars-sur-Ollon, CH, September 6-13, 1987
The LEAR electron cooler. (1985)
Haseroth, H., Hill, C.E., Vallet, J.L., Habfast, C., Huetten, L., Poth, H., ...
Poth, H. [Hrsg.]
Status and perspectives of the electron cooling device under construction at CERN. (1985)
Habfast, C., Poth, H., Seligmann, B., Haseroth, H., Hill, C.E., Vallet, J.L., ...
Gastaldi, U. [Hrsg.]
State history. Washington State College. Agriculture. 1921-03-30 (1921)
Big wheat yields after spring fallowSuperintendent Waterville station gives suggestionCrop following last year growth not as good as if ground has been fallowedWith the ground supplied with more than...
Strength and tempo of directional selection in the wild
Hoekstra, H. E., Hoekstra, J. M., Berrigan, D., Vignieri, S. N., Hoang, A., Hill, C. E., ...
Directional selection is a major force driving adaptation and evolutionary change. However, the distribution, strength, and tempo of phenotypic selection acting on quantitative traits in natural...
The stimulation of hepatic glycogenolysis by platelet activating factor (AGEPC) or increased perfusate potassium concentration ([K+]o), but not phenylephrine, causes a transient increase in uric acid...
Location of platelet activating factor binding in rat liver.
Hill, C E, Miwa, M, Sheridan, P J, Hanahan, D J, Olson, M S
Autoradiographs of tissue slices from livers perfused with 1 x 10(-9) M-1-O-[3H]octadecyl-2-acetyl-sn-glycero-3-phosphocholine ([ 3H]18:0-sn-3-AGEPC) indicate that binding of this agonist is...
Evidence for adrenergic control of transcellular calcium distribution in liver.
Hill, C E, Dawson, A P, Pryor, J S
Free Ca2+ concentration and 45Ca flux were measured in the perfusate and bile of the perfused rat liver. With a perfusate Ca2+ concentration of 1 mM, the bile concentration was 0.35 mM. The ratio of...
Pathway-specific effects of calcitonin gene-related peptide on irideal arterioles of the rat.
1. Arteriolar diameter and membrane voltage have been measured to investigate the actions of calcitonin gene-related peptide (CGRP) in rat irideal arterioles. 2. Activation of sensory nerves...
Hill, C E, Myers, J W, Pon, D C
1. Cs+ was used to study the mechanisms involved in the induction of haemodynamic and metabolic oscillations in the isolated rat liver perfused by the portal vein. 2. Cs+ (2.25 mM) in K(+)-free...
Induction of haemodynamic oscillations in the perfused rat liver by K+ channel blockers.
1. Exposure of the isolated perfused (constant flow) rat liver to the K+ channel blockers 4-aminopyridine (4-AP) or Cs+ causes the appearance of oscillations in portal pressure and oxygen uptake. The...
Repolarization current in embryonic chick atrial heart cells.
Clay, J R, Hill, C E, Roitman, D, Shrier, A
1. We have measured the delayed rectifier potassium current, IK, with the whole-cell patch-clamp technique from single cultured cells from the atria of 6- to 11-day-old chick embryonic hearts. 2. The...
Hill, C E, Hirst, G D, Silverberg, G D, Van Helden, D F
The densities of the adrenergic innervation of the internal carotid and middle cerebral arteries and their extracerebral branches have been determined using fluorescence histochemistry. The density...
Development of sympathetic innervation to proximal and distal arteries of the rat mesentery.
Hill, C E, Hirst, G D, Van Helden, D F
The changes which occur during the post-natal development of sympathetic innervation to proximal and distal arteries of the rat mesentery have been examined using intracellular recording and...
Gould, D. J., Vidovic, M., Hill, C. E.
1. Sympathetic nerve stimulation causes contraction of the dilator muscle and the large arterioles of the iris via the activation of alpha 1B-adrenoceptors. We have investigated whether increases in...
Hill, C. E., Powis, D. A., Hendry, I. A.
1. Sympathetic neurones derived from superior cervical ganglia of neonatal rats and maintained in tissue culture were used to investigate the modulation of neurotransmitter release by presynaptic...
Voltage independence of vasomotion in isolated irideal arterioles of the rat
Haddock, R E, Hirst, G D S, Hill, C E
The cellular mechanisms underlying vasomotion of irideal arterioles from juvenile rats have been studied using electrophysiological methods, ratiometric calcium measurements and video microscopy....
Spontaneous, rhythmical contractions, or vasomotion, can be recorded from cerebral vessels under both normal physiological and pathophysiological conditions. Using electrophysiology to study changes...
Cousins, H M, Edwards, F R, Hickey, H, Hill, C E, Hirst, G D S
Intracellular recordings were made from short segments of the muscular wall of the guinea-pig gastric antrum. Preparations were impaled using two independent microelectrodes, one positioned in the...
Dynamics of A Three-Variable Nonlinear Model of Vasomotion: Comparison of Theory and Experiment
Parthimos, D., Haddock, R. E., Hill, C. E., Griffith, T. M.
The effects of pharmacological interventions that modulate Ca2+ homeodynamics and membrane potential in rat isolated cerebral vessels during vasomotion (i.e., rhythmic fluctuations in arterial...