摘要:
A unit for sampling aldehydes and ketones contained in diluted exhaust gases from thermal combustion engines has a specific trapping circuit and a simulation circuit that simulates the specific trapping circuit. The specific trapping circuit and the simulation circuit are arranged in parallel so that the diluted gases can be passed for some time in the simulation circuit (5) before they are passed into the specific trapping circuit wherein aldehydes and ketones are trapped.
摘要:
A source-collector module (SOCOMO) for generating a laser-produced plasma (LPP) that emits EUV radiation, and a grazing-incidence collector (GIC) mirror arranged relative to the LPP and having an input end and an output end. The LPP is formed using an LPP target system having a light source portion and a target portion, wherein a pulsed laser beam from the light source portion irradiates Sn vapor from a Sn vapor source of the target portion. The GIC mirror is arranged relative to the LPP to receive the EUV radiation at its input end and focus the received EUV radiation at an intermediate focus adjacent the output end. A radiation collection enhancement device may be used to increase the amount of EUV radiation provided to the intermediate focus. An EUV lithography system that utilizes the SOCOMO is also disclosed.
摘要:
A source-collector module (SOCOMO) for generating a laser-produced plasma (LPP) that emits EUV radiation, and a grazing-incidence collector (GIC) mirror arranged relative to the LPP and having an input end and an output end. The LPP is formed using an LPP target system having a light source portion and a target portion, wherein a pulsed laser beam from the light source portion irradiates Sn vapor from a Sn vapor source of the target portion. The GIC mirror is arranged relative to the LPP to receive the EUV radiation at its input end and focus the received EUV radiation at an intermediate focus adjacent the output end. A radiation collection enhancement device may be used to increase the amount of EUV radiation provided to the intermediate focus. An EUV lithography system that utilizes the SOCOMO is also disclosed.
摘要:
A process for sampling aldehydes and ketones contained in diluted exhaust gases from thermal combustion engines uses a sampling unit that has a specific trapping circuit and a simulation circuit that simulates the specific trapping circuit. The specific trapping circuit and the simulation circuit are arranged in parallel. The diluted gases are passed for some time in the simulation circuit (5) before they are passed into specific trapping circuit wherein aldehydes and ketones are trapped.
摘要:
The present invention is a system for specific pollutants contained in diluted exhaust gases from thermal combustion engines, comprising a first module (1) which samples aldehyde and ketone emissions and a second module (2) which samples hydrocarbon emissions. The system according to the invention further comprises a control which coordinates the sampling(s) with predetermined working phases of the thermal engine. The first module (1) comprises a circuit (3) for trapping the aldehydes and the ketones contained in the diluted exhaust gases and a dilution air sampling circuit (4).
摘要:
The present invention relates to a method and to a device for sampling gaseous compounds contained in a gas stream, notably in diluted exhaust gases from an internal-combustion engine. According to the invention, the method consists in providing passage of the gas stream through at least one sampling channel (26, 26a; 80, 80a) containing an adsorbent that traps the polycyclic aromatic hydrocarbons in gaseous form.