Ion Source Thermal Management via Fluid Cooling
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Solution Overview
Problem
Ion sources in mass spectrometers face inefficiencies due to suboptimal temperature regulation, leading to reduced performance and safety concerns from excessive heat, which necessitates additional panels for compliance.
Innovation Solution
A regulated fluid flow system within the ion source housing maintains the ion source enclosure at an optimal temperature range of 60° C to 80° C, utilizing a fluid flow passageway with a heat sink and pressure monitoring to ensure efficient operation and safety, while allowing pivotal and translatory movement for easy detachment and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the ion source temperature is increased to produce more sample ions, then ion production efficiency is improved, but noise ion production and safety risks increase
Solution Approach 1:
The ion source housing is divided into two distinct thermal zones: an internal ion source enclosure maintained at high temperature (60-80°C) for optimal ion production, and an external outer cover maintained at safe touch temperature through fluid cooling. This segmentation allows simultaneous achievement of high ion production efficiency and safety compliance without compromise.
Solution Approach 2:
A fluid cooling system acts as an intermediary between the high-temperature ion source enclosure and the external environment. The fluid absorbs excess heat through passageways in the housing, maintaining the enclosure at optimal temperature while preventing heat transfer to the outer cover, thus eliminating both noise ion production and safety risks.
2Object-affected harmful factors
If additional instrument panels are added to restrict access to source enclosures for safety compliance, then safety is improved, but device complexity increases
Solution Approach 1:
The safety function is extracted from the operational structure by providing a dedicated outer cover that maintains safe touch temperature. This eliminates the need for additional access-restricting panels while achieving the same safety compliance goal, thereby reducing device complexity.
Solution Approach 2:
The outer cover serves multiple functions simultaneously: it provides structural housing, maintains safe touch temperature through fluid cooling, and ensures safety compliance by preventing direct contact with hot components. This multi-functionality eliminates the need for separate safety panels.
3Productivity
If the ion source enclosure is maintained at optimal temperature for ion production, then ion production efficiency is improved, but heat management complexity increases
Solution Approach 1:
The fluid cooling system is integrated directly into the housing structure with passageways formed within the housing walls. The system uses the natural flow properties of the cooling fluid and the inherent thermal conductivity of the housing materials to achieve temperature regulation, eliminating the need for complex external cooling apparatus while maintaining optimal ion production temperature.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances ion source performance by maintaining optimal temperature, reducing noise, and ensuring safety through controlled temperature regulation and pressure management, thereby improving signal responses and operational efficiency.
Implementation Method 1
the fluid flow passageway incorporates a heat sink
Implementation Method 2
supplying to the ion source housing a regulated flow of fluid through the fluid passageways
Implementation Method 3
fluid flow passageway provided between the ion source enclosure and the outer cover
Data Source
AI summary
An ion source, a mass spectrometer and a method of enhancing the performance of an ion source for use with a mass spectrometer. The ion source has a housing incorporating an ion source enclosure defining a chamber and an outer cover remote from the chamber. A fluid flow passageway is provided between the ion source enclosure and the outer cover. The method of the invention comprising supplying to the ion source housing a regulated flow of fluid through the fluid passageways so as to maintain the ion source enclosure within a predetermined temperature range of substantially between 60° c. and 80° c. and preferably at 70° c.