234 research outputs found
Comparisons Between Modeling and Measured Performance of the BNL Linac
Quite good agreement has been achieved between computer modeling and actual
performance of the Brookhaven 200 MeV Linac. We will present comparisons
between calculated and measured performance for the beam transport through the
RFQ, the 6 meter transport from RFQ to the linac and meching and transport
through the linac.Comment: 3 page
A Super-Conducting Linac Driver for the HFBR
This paper reports on the feasibility study of a proton Super-Conducting
Linac (SCL) as a driver gor the High-Flux Breader Reactor (HFBR) at Brookhaven
National Laboratory (BNL). The Linac operates in Continuos Wave (CW) mode to
produce an average 10 MW of beam power. The Linac energy is 1.0 GeV. The
average proton beam intensity is 10 mA.Comment: 3 page
The NSNS High Energy Beam Transport Line
In the National Spallation Neutron Source (NSNS) design, a 180 meter long
transport line connects the 1 GeV linac to an accumulator ring. The linac beam
has a current of 28 mA, pulse length of 1 ms, and 60 Hz rep rate. The high
energy transport line consists of sixteen 60 degrees FODO cells, and
accommodates a 90 degrees achromatic bend, an energy compressor, collimators,
part of injection system, and enough diagnostic devices to measure the beam
quality before injection. To reduce the uncontrolled beam losses, this line has
nine beam halo scrapers and very tight tolerances on both transverse and
longitudinal beam dynamics under space charge conditions. The design of this
line is presented.Comment: 3 pages, transfer line desig
Evaluation of probiotic adequacy, immunomodulatory effects and dosage application of Bacillus coagulans in formulated feeds for Catla catla (Hamilton 1822)
The present study was conducted to study the probiotic properties, antagonistic effect against pathogenic Aeromonas hydrophila of Bacillus coagulans isolated from intestine of healthy Catla catla Hamilton, 1822; and its optimum dosage for growth promotion and immunostimulation. The isolated B. coagulans from the gastrointestinal tract of C. catla was first assessed for its probiotic properties viz., antagonism towards pathogen and cell surface adhesion. A feeding trial of 90 days was conducted to optimize the inclusion level of B. coagulans in diets and C. catla fingerlings (avg. wt. 0.30±0.03g) were fed on feed supplemented with 1x103 (diet D1), 2x103 (diet D2), 3x103 (diet D3) and 5x103 (diet D4) B. coagulans CFU g-1 of feed in triplicate treatments. The growth and digestibility parameters, intestinal enzyme activities were significantly higher in group of fish fed on feed D3 (3x103 CFU g-1) in comparison to other dietary treatments except for food conversion ratio which was significantly higher in control group. Significantly higher value of carcass protein level, lower excretion of metabolites (ammonia and phosphates), enhancement of non-specific immune response and increase of total Erythrocyte count (TEC) and total Leucocyte Count (TLC) were observed in fish fed with probiotics supplemented diets. The results obtained in the present study support the use of B. coagulans for better growth and proper nutrient utilization. The broken line analysis was carried out and polynomial fit curve further suggest that the optimum concentrations of B. coagulans as high as 3000 (3x103) CFU g-1 of feed is required for improving the overall physiological performance and enhancement of defense mechanisms in the fingerlings of C. catla
A Super-Conducting Linac Injector for the BNL-Ags
This paper reports on the feasibility study of a proton Super-Conducting Linac (SCL) as a new injector to the Alternating Gradient Synchrotron (AGS) of the Brookhaven National Laboratory (BNL). The Linac beam energy is in the range of 1.5 to 2.4 GeV. The Beam intensity is adjusted to provide an average beam power of 4 MW at the top energy of 24 GeV. The repetition rate of the SCL-AGS facility is 5 beam pulses per second
Optics modification of the electron collector for the Relativistic Heavy Ion Collider Electron Beam Ion Source
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AngioVac extraction of intra-atrial hepatoma masquerading as PICC-associated thrombus
Thrombus associated with peripherally inserted central catheterization is not uncommon. Treatment is typically conservative; however, more aggressive therapies can be considered in patients with tenuous medical condition. The authors present a patient with metastatic hepatocellular carcinoma masquerading as peripherally inserted central catheter-associated intra-atrial thrombus, subsequently removed via vacuum-assisted mechanical thrombectomy
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