Resource Type

Serial/Series Title

D-Zero Central Calorimeter Pressure Vessel and Vacuum Vessel Safety Notes (open access)

D-Zero Central Calorimeter Pressure Vessel and Vacuum Vessel Safety Notes

The relief valve and relief piping capacity was calculated to be 908 sefm air. This exceeds all relieving conditions. The vessel also has a rupture disc with a 2640 scfm air stamped capacity. In order to significantly decrease the amount of time required to fill the cryostats, it is desired to raise the setpoint of the 'operating' relief valve on the argon storage dewar to 20 psig from its existing 16 psig setting. This additional pressure increases the flow to the cryostats and will overwhelm the relief capacity if the temperature of the modules within these vessels is warm enough. Using some conservative assumptions and simple calculations within this note, the maximum average temperature that the modules within each cryostat can be at prior to filling from the storage dewar with liquid argon is at least 290 K. The average temperature of the module mass for any of the three cryostats can be as high as 290 K prior to filling that particular cryostat. This should not be confused with the average temperature of a single type or location which is useful in protecting the modules-not necessarily the vessel itself. A few modules of each type and at different elevations …
Date: October 25, 1990
Creator: Rucinski, R. & Luther, R.
System: The UNT Digital Library
CRAF/Cassini Contingency Plans Using Only Existing Pu(superscript238) Inventory (open access)

CRAF/Cassini Contingency Plans Using Only Existing Pu(superscript238) Inventory

No Abstract. There are two duplicate copies. One is in the FSC-ESD files.
Date: October 25, 1990
Creator: Eck, Marshall B
System: The UNT Digital Library
Shot report, Holo-17-Holo-22 Rex-9 (open access)

Shot report, Holo-17-Holo-22 Rex-9

We report on a series of holographic shots using explosives to generate ejecta from lead. These experiments covered a range of geometries including point initiation and plane wave initiation for the H.E., and using a gas-fill in the cavity where the ejecta was produced. The final experiment, Rex-9 was a Fabry-Perot experiment at Site 300 which provided the velocity history of the lead surface for the purpose of normalizing the code being used to calculate the position of the lead surface in these experiments. The focus of this report is on the experimental technique rather than on the size measurements. We want to insure that the advances in mechanical design and experimental technique that were made during these experiments are preserved in future experiments. 8 figs., 2 tabs.
Date: October 25, 1990
Creator: McMillan, C.; Whipkey, R. & Vance, P.
System: The UNT Digital Library
FY90 milestone report for the CIT (Compact Ignition Tokamak) project: Localizability of electron-cyclotron heating power (open access)

FY90 milestone report for the CIT (Compact Ignition Tokamak) project: Localizability of electron-cyclotron heating power

Estimates of the localizability of electron-cyclotron heating power are made for the Compact Ignition Tokamak. A particular heating scenario is examined, namely, the fundamental O-mode, injected nearly perpendicular to the toroidal magnetic field. The absorption depth due to finite T{sub e} is very small, about 1 cm, near the q = 2 surface. Absorption is even better localized near q = 1. Several issues that might lead to degraded localizability are reviewed. Use of an intense, pulsed microwave source is the only issue with a possibly significant impact. 3 refs.
Date: October 25, 1990
Creator: Smith, G. R.
System: The UNT Digital Library
Temperature Control Feedback Loops for the Linac Upgrade Side Coupled Cavities at Fermilab (open access)

Temperature Control Feedback Loops for the Linac Upgrade Side Coupled Cavities at Fermilab

The linac upgrade project at Fermilab will replace the last 4 drift-tube linac tanks with seven side coupled cavity strings. This will increase the beam energy from 200 to 400 MeV at injection into the Booster accelerator. The main objective of the temperature loop is to control the resonant frequency of the cavity strings. A cavity string will constant of 4 sections connected with bridge couplers driven with a 12 MW klystron at 805 MHz. Each section is a side coupled cavity chain consisting of 16 accelerating cells and 15 side coupling cells. For the linac upgrade, 7 full cavity strings will be used. A separate temperature control system is planned for each of the 28 accelerating sections, the two transition sections, and the debuncher section. The cavity strings will be tuned to resonance for full power beam loaded conditions. A separate frequency loop is planned that will sample the phase difference between a monitor placed in the end cell of each section and the rf drive. The frequency loop will control the set point for the temperature loop which will be able to maintain the resonant frequency through periods within beam or rf power. The frequency loop will need …
Date: October 25, 1990
Creator: Crisp, Jim
System: The UNT Digital Library
(Biotechnology for the conversion of lignocellulosics) (open access)

(Biotechnology for the conversion of lignocellulosics)

This report summarizes the results of the traveler's participation in the International Energy Agency (IEA) Network planning meeting for Biotechnology for the Conversion of Lignocellulosics,'' held at the Institut Francais du Petrole (IFP), Rueil-Malmaison, France. It also summarizes the results of discussions held at Aston University, Birmingham, UK, with Dr. Martin Beevers with whom the traveler is attempting to initiate a collaborative research project that will be beneficial to ongoing research programs at Oak Ridge National Laboratory (ORNL). The itinerary for the trip is given in Appendix A; the names of the people contacted are listed in Appendix B. Also, pertinent information about the Institut Francais du Petrole is attached (Appendix C). 1 tab.
Date: October 25, 1990
Creator: Woodward, J.
System: The UNT Digital Library
(Working Team meeting of IEA-CADDET) (open access)

(Working Team meeting of IEA-CADDET)

The traveler serving as Delegate from the United States, Center for the Analysis and Dissemination of Demonstrated Energy, (CADDET) National Team, participated in the activities of the annual International Energy Agency, CADDET Working Team meeting. Highlights of this meeting included progress/status presentations by 12 to 13 CADDET National Teams, development of future CADDET work plans including a prioritization of activities, and discussions of long range expectations for CADDET. Follow-up discussions were held with CADDET staff members which focused on US CADDET National Team contributions to the CADDET newsletter, brochures and register of demonstrated energy technologies.
Date: October 25, 1990
Creator: Broders, M. A.
System: The UNT Digital Library
Winter Fuels Report: Week Ending October 19, 1990 (open access)

Winter Fuels Report: Week Ending October 19, 1990

The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and state and local governments on the following topics: distillate fuel oil net production, imports and stocks for all PADD's and product supplied on the US level; propane net production, imports and stocks for Petroleum Administration for Defense Districts (PADD) I, II, and III; natural gas supply and disposition and underground storage for the United States and consumption for all PADD's; residential and wholesale pricing data for propane and heating oil for those states participating in the joint Energy Information Administration (EIA)/State Heating Oil and Propane Program; crude oil and petroleum price comparisons for the United States and selected cities; and US total heating degree-days by city. This report will be published weekly by the EIA starting the first week in October 1990 and will continue until the first week in April 1991. The data will also be available electronically after 5:00 pm on Thursday during the heating season through the EIA Electronic Publication System (EPUB).
Date: October 25, 1990
Creator: unknown
System: The UNT Digital Library