A refrigeration system includes: a vacuum chamber forming a cooling region accommodating an object; a cooling unit that cools the object accommodated in the cooling region; and a heating unit disposed in the cooling region to generate heat. The heating unit includes an optical fiber that guides light provided from an outside of the vacuum chamber, and a heating block that is disposed in the cooling region and that receives the light emitted from the optical fiber, to generate heat. The heating block includes a closed region configured to be isolated from the cooling region. A light-emitting end of the optical fiber is exposed to the closed region.

A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

A transportation refrigeration unit (24) to provide a flow of supply air to a selected space includes a compressor to compress a flow of refrigerant and an engine (36) powered by a flow of fuel and operably connected to the compressor to drive the compressor. An evaporator circulates the flow of refrigerant therethrough to cool the supply air and includes a substantially unitary evaporator housing (50) having a supply air inlet opening (52) and a supply air outlet opening (56). An evaporator coil (32) is located in the evaporator housing, the flow of refrigerant circulating across the evaporator coil. An evaporator fan (34) is located in the evaporator housing to urge the supply airflow into the evaporator housing via the supply air inlet opening (52), across the evaporator coil (32) and out of the evaporator housing through the supply air outlet opening (56). The evaporator fan (34) can be located upstream or downstream of the evaporator coil (32).

In a cryopump, a primary cryopumping array having adsorbent and cooled by a second refrigerator stage extends along radiation shield sides. That array is shielded by a condensing cryopumping array that extends along the primary cryopumping array. The primary cryopumping array may be a cylinder with adsorbent on an inwardly facing surface, and the condensing cryopumping array may comprise an array of baffles having surfaces facing the frontal opening. A raised surface such as a conical surface at the base of the radiation shield redirects molecules received from the frontal opening toward the primary cryopumping array. The refrigerator cold finger may extend tangentially relative to the radiation shield or connect to the base of the radiation shield.

A vacuum adiabatic body and a refrigerator are provided. The vacuum adiabatic body includes a support that maintains a vacuum space between a first plate and a second plate. The support includes a first support plate provided by coupling at least two partial plates to support one of the first plate or the second plate, and a second support plate that supports the other one of the first plate or the second plate.

A vacuum adiabatic body and a refrigerator are provided. The vacuum adiabatic body includes a support that maintains a vacuum space between a first plate and a second plate. The support includes a first support plate provided by coupling at least two partial plates to support one of the first plate or the second plate, and a second support plate that supports the other one of the first plate or the second plate.

The disclosure describes various aspects of a cryogenic trapped-ion system. In an aspect, a method is described that includes bringing a chain of ions in a trap at a cryogenic temperature, the trap being a micro-fabricated trap, and performing quantum computations, simulations, or both using the chain of ions in the trap at the cryogenic temperature. In another aspect, a method is described that includes establishing a zig-zag ion chain in the cryogenic trapped-ion system, detecting a change in a configuration of the zig-zag ion chain, and determining a measurement of the pressure based on the detection in the change in configuration. In another aspect, a method is described that includes measuring a low frequency vibration, generating a control signal based on the measurement to adjust one or more optical components, and controlling the one or more optical components using the control signal.

Disclosed is an disclosure pertaining to a cooling apparatus for a superconductor cooling container. The disclosed cooling apparatus for a superconductor cooling container comprises: an inner container which is disposed in an outer container and in which a superconductor is immersed in a liquid refrigerant; a refrigerator disposed outside the outer container to generate cold air; and a cryogenic maintenance device which is connected to the refrigerator and maintains the inside of the inner container in a cryogenic state.

Disclosed is an disclosure pertaining to a cooling apparatus for a superconductor cooling container. The disclosed cooling apparatus for a superconductor cooling container comprises: an inner container which is disposed in an outer container and in which a superconductor is immersed in a liquid refrigerant; a refrigerator disposed outside the outer container to generate cold air; and a cryogenic maintenance device which is connected to the refrigerator and maintains the inside of the inner container in a cryogenic state.