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MOLTEN-SALT REACTOR PROGRAM - page 35 / 122

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Xenon Transport in MSRE System44

Prototype Pump Testing Facility44

Water Test Pump Loop44

Maintenance Development45

Pump Development47

Prototype Pump Operation and Testing47

PKP Fuel Pump High-Temperature Endurance Test52

Test Pump with One Molten-Salt-Lubricated Bearing54

Lubrication-Pump Endurance Test54

Fuel Pump MK-254

Instrument Development54

Single-Point Liquid-Level Indicator54

Pump-Bowl Liquid-Level Indicator55

Temperature Scanner55

Thermocouple Development and Testing56

Closed-Circuit Television for Remote Maintenance Viewing57

High-Temperature NaK-Filled Differential Pressure Transmitter57

Bubbler-Type Liquid-Level Indicator58

3. MSRE REACTOR ANALYSIS60

Nuclear Characteristics of Core60

Control Rod Worth62

Method of Calculation62

Results62

Reactivity Shimming64

Inherent Neutron Sources66

Biological Shielding66

Part 2. MATERIALS STUDIES

4. METALLURGY71

Heat Exchanger Fabrication71

MSRE Primary Heat Exchanger Brazing71

Ultrasonic Inspection of Tube Joint Brazing71

Mechanical Properties of INOR-873

Thermal Fatigue73

Postirradiation Tensile Testing75

Evaluation of MSRE Graphite75

Chemical Composition and Oxygen Content75

Thermal Cycling of Salt-Impregnated Graphite76

Irradiation Effects on Grade CGB Graphite76

Removal of Oxygen from Graphite with Molten Salts77

Sintering Characteristics of Gd2O3-Al2O378

5. RADIATION EFFECTS80

Postirradiation Examination of Assembly ORNL-MTR-47-480

Xenon Recovery from Graphite Cores80

Nonvolatile Constituents in Graphite Cores81

Effect of Irradiation in Assembly ORNL-MTR-47-583

Production of CF4 Under Operating Conditions83

Postirradiation Examination of Assembly ORNL-MTR-47-586

Fluorine Generation from Decay Energy86

Out-of-Pile Irradiations of Solid MSRE Salts94

Gamma Irradiations94

X-Ray Irradiations96

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