A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

Laser amplifier frames fabricated from Type 304 stainless steel are known to cause damage to glass lenses by ejecting particles which are deposited on the lenses. High energy pulses of xenon light interact with the steel surface to produce damage sites. Heat treatment and surface cleaning procedures greatly affect the surface stability of the steel and influence contamination generated by the steel. It is believed that inclusions and/or carbides play a role, and the size of damage sites observed on glass correlate with the size of nonmetallic phases in the steel. Thermal etching of the steel was found to be a principle mechanism of surface damage caused by the high energy xenon light.

The stress analysis is presented for the proposed loop seal modification to the LOFT Steam Generator Main Feed Piping. THE SAP IV finite element computer program was used to analyze normal, upset, emergency, and faulted conditions. Results of the analysis indicate that the modified main feed piping system will satisfy all structural adequacy criteria specified in Subarticle NC-3650 of the ASME Boiler and Pressure Vessel Code. Results also show that the isolation snubber configuration, specified in LTR 115-11, will also be adequate for the piping configuration analyzed.

In accordance with ASME Code, Section III requirements, all analyses of Class I components must be independently reviewed. Since the LOFT blowdown loop piping up through the blowdown valve is a Class I piping system, the thermal analyses are reviewed. The Thermal Analysis Branch comments to this review are also included. It is the opinion of the Thermal Analysis Branch that these comments satisfy all of the reviewers questions and that the analyses should stand as is, without additional considerations in meeting the ASME Code requirements and ANC Specification 60139.

Reduced instrument responses are presented for Thermal-Hydraulic Test Facility (THTF) test 104, which is part of the ORNL Pressurized-Water Reactor (PWR) Blowdown Heat Transfer Separate-Effects Program. The objective of the program is to investigate the thermal-hydraulic phenomenon governing the energy transfer and transport processes that occur during a loss-of-coolant accident in the PWR system. Test 104 was conducted to obtain CHF in bundle 1 under blowdown conditions. The primary purpose of this report is to make the reduced instrument responses during test 104 available.

A proposal to insert a small circumference, energy booster between the 200 MeV Linac and the AGS is presented. The possible increase in AGS performance is pointed out. In particular, one can expect an increase in protons on target for the ..nu.. program, an increase in anti p flux, an increase in AGS operational reliability and an increase in beam brightness for ISABELLE. In addition, and perhaps most significantly, it could allow rapid current accumulation for ISABELLE with reduced aperture requirement, avoiding altogether the complexities associated with the present rf stacking approach. It is suggested that the existing PPA accelerator can serve as an ideal booster for the AGS complex. Furthermore, this machine is presently available intact. To obtain high brightness beams as well as intense beams, it appears to be necessary to shift to H/sup -/ injection from the Linac to the Booster. In this way, it is conceivable that approximately 10/sup 14/ protons per AGS pulse could become a reality. In such an operating mode, extensive rf and shielding modifications would undoubtedly be required. It also appears that AGS beam dumps would become necessary. ISABELLE performance is considered. A possible scenario suggests a bunched beam average luminosity reaching …

With condensed molecular beams of hydrogen as described in literature, very well defined high local gas densities can be produced, which for antiproton beams of 5 x 10/sup 11/ give luminosities between 10/sup 30/ and 10/sup 31/ cm/sup -2/ sec/sup -1/, two orders of magnitude higher than the luminosity estimates for p-anti p physics in the ISR (10/sup 28/ to 10/sup 29/) and one order of magnitude higher than the luminosity for p-anti p physics in the SPS. After some minor modifications, the same vacuum system (chamber and pumps) as that for the proposed polarized atomic beam target could be used for this molecular beam apparatus. 13 references.

The response of the pressure-suspension containment system of Mark I boiling-water reactors to a loss-of-coolant accident (LOCA) is being studied. This response is a design basis for light-water nuclear reactors. Part of the study is being carried out on a /sup 1///sub 5/-scale experimental facility that models the pressure-suppression containment system of the Peach Bottom 2 nuclear power plant. The test series reported here focused on the initial or air-clearing phase of a hypothetical LOCA. Measured forces, measured pressures, and the hydrodynamic phenomena (observed with high-speed cameras) show a logical interrelationship.

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