Abstract: A device for inserting a sample into a sealed enclosure includes: a sample carrier for holding the sample; an insertion rod including an elongate portion for bearing the sample carrier; a transfer airlock including an outer door to close in a watertight manner and to open onto an environment outside the sealed enclosure, an inner door to close in a watertight manner and to open onto the inside of the sealed enclosure, and a sealed chamber defined between the outer door and the inner door when they are in the sealed configuration, the sealed chamber being able to accommodate the sample carrier inserted by the insertion rod; and a system for purifying the contained fluid medium, the sample carrier, and the sample which are accommodated in the sealed chamber.

Abstract: Fluid channeling system (150) for NMR system (100), characterized in that the channeling system (150) includes an exhaust circuit (160) of the NMR system (100) comprising a first fluid circulation branch (161) and a second fluid circulation branch (162).

Abstract: The invention relates to an NMR analysis device (7) comprising an NMR analysis probe (9) and a cryostat (8) linked by a cryogenic line (16), the probe (9) comprising a frame; a sample-holder (12) comprising a rotor (31), suitable for receiving a sample of material (15) to be analyzed; a bearing (13) for rotationally guiding the sample-holder (12) relative to the frame; the device further comprising a compression module (10) and a cryorefrigerator (11) arranged in the cryostat (8), the cryorefrigerator being upstream of the compression module, and in that the analysis device (7) comprises a first element (22) for channelling a third gaseous flow (M3) of fluid to a turbine (14) and a second element (21) for channelling a second gaseous flow of fluid (M2) to the bearing (13), the bearing (13) being of aerostatic or aerodynamic type.

Abstract: An NMR analysis device and a method for operating an NMR analysis device (7) including a circuit having an NMR analysis probe (9) and a cryostat (8) linked by a cryogenic line (16), includes a step of configuration of this circuit through which fluid flows (M0 to M9) circulate, said configuration step comprising an implementation of different modes of operation of the device (7), according to the activation/deactivation of redirection elements (VC1, VC2, VC3, VC4) and/or of the configuration in closed/open mode of looping elements (A1 to A11) of this circuit.

Abstract: An NMR analysis device, method and probe, including a frame, a sample-holder (12) comprising a rotor (31), suitable for receiving a sample of material (15) to be analyzed, a bearing (13) for rotationally guiding the sample-holder (12) relative to the frame, a turbine (14) kinematically linked with the rotor, the turbine having a geometry such that it allows an isentropic expansion of a third fluid (M3) which passes through it, and a fourth element for channeling (24, 23) a fourth gaseous flow (M4) of fluid downstream of the expansion turbine (14) or for channeling a sixth gaseous flow (M6) of fluid downstream of the rotor (31) and stator (30) of the sample-holder (12).

Abstract: Method for operating a thermal insulation device (100) comprising a screen (101, 102, 103, 104) for insulating a first member (21) and/or a second member (20; 30; 16; 10; 30) from a thermal radiation, the method comprising: a heat-exchange step in which heat is exchanged between a stream of a fluid, notably a gas, and the screen, notably a step of transferring heat from the heat screen to the stream, and a use step in which the stream is used for guiding the first member (21) and/or for driving the movement of the first member and/or for exchanging heat with the first member, notably for cooling the first member.

Abstract: The method comprises an initial cooling step (E0) during which the temperature (T_ECH) of the heat exchanger (30) is lowered and, at the same time, the flow rate of the said first flow (FLS) is set to an initial flow rate. Following the initial cooling step (E0), an operation of circulating the first flow (FLS) is initiated (E1) and during this the said first flow (FLS) passes through a heat exchange (30) at a first flow rate which is higher than the initial flow rate. The initial flow rate of the first flow may be set to zero or to a value set so that the pressure inside the said circuit is greater than or equal to the pressure outside the said circuit.

Abstract: The NMR analysis method for analyzing a solid sample positioned in a sample-holder (21) includes generation of a plurality of high-pressure gaseous flows (2, 3, 4) from at least one first source (1) of a high-pressure gas; cooling of the gaseous flows (2, 3, 4) in at least one heat exchanger (12) from a coolant gas (15) originating from at least one second source (11) of gas; and rotation of the sample-holder (21) by a first cooled high-pressure gaseous flow (2) and cooling of the sample-holder by a second cooled high-pressure gaseous flow (3).

Abstract: Fluid channeling system (150) for NMR system (100), characterized in that the channeling system (150) includes an exhaust circuit (160) of the NMR system (100) comprising a first fluid circulation branch (161) and a second fluid circulation branch (162).

Abstract: The method comprises an initial cooling step (E0) during which the temperature (T_ECH) of the heat exchanger (30) is lowered and, at the same time, the flow rate of the said first flow (FLS) is set to an initial flow rate. Following the initial cooling step (E0), an operation of circulating the first flow (FLS) is initiated (E1) and during this the said first flow (FLS) passes through a heat exchange (30) at a first flow rate which is higher than the initial flow rate. The initial flow rate of the first flow may be set to zero or to a value set so that the pressure inside the said circuit is greater than or equal to the pressure outside the said circuit.

Abstract: An NMR analysis device, method and probe, including a frame, a sample-holder (12) comprising a rotor (31), suitable for receiving a sample of material (15) to be analyzed, a bearing (13) for rotationally guiding the sample-holder (12) relative to the frame, a turbine (14) kinematically linked with the rotor, the turbine having a geometry such that it allows an isentropic expansion of a third fluid (M3) which passes through it, and a fourth element for channeling (24, 23) a fourth gaseous flow (M4) of fluid downstream of the expansion turbine (14) or for channeling a sixth gaseous flow (M6) of fluid downstream of the rotor (31) and stator (30) of the sample-holder (12).

Abstract: An NMR analysis device comprising an NMR analysis probe and a cryostat linked by a cryogenic line, the probe a frame, a sample-holder having a rotor, suitable for receiving a sample of material to be analysed, a bearing for rotationally guiding the sample-holder relative to the frame, a compression module and a cryorefrigerator arranged in the cryostat, upstream of the compression module, and a first element for channelling a third gaseous flow of fluid to a turbine and a second element for channelling a second gaseous flow of fluid to the bearing, the bearing being of aerostatic or aerodynamic type.

Abstract: An NMR analysis device and a method for operating an NMR analysis device (7) including a circuit having an NMR analysis probe (9) and a cryostat (8) linked by a cryogenic line (16), includes a step of configuration of this circuit through which fluid flows (M0 to M9) circulate, said configuration step comprising an implementation of different modes of operation of the device (7), according to the activation/deactivation of redirection elements (VC1, VC2, VC3, VC4) and/or of the configuration in closed/open mode of looping elements (A1 to A11) of this circuit.

Abstract: The NMR analysis method for analysing a solid sample positioned in a sample-holder (21) includes generation of a plurality of high-pressure gaseous flows (2, 3, 4) from at least one first source (1) of a high-pressure gas; cooling of the gaseous flows (2, 3, 4) in at least one heat exchanger (12) from a coolant gas (15) originating from at least one second source (11) of gas; and rotation of the sample-holder (21) by a first cooled high-pressure gaseous flow (2) and cooling of the sample-holder by a second cooled high-pressure gaseous flow (3).

Abstract: Method for operating a thermal insulation device (100) comprising a screen (101, 102, 103, 104) for insulating a first member (21) and/or a second member (20; 30; 16; 10; 30) from a thermal radiation, the method comprising: a heat-exchange step in which heat is exchanged between a stream of a fluid, notably a gas, and the screen, notably a step of transferring heat from the heat screen to the stream, and a use step in which the stream is used for guiding the first member (21) and/or for driving the movement of the first member and/or for exchanging heat with the first member, notably for cooling the first member.