In a hospital imaging department, a patient lies on an examination table, about to undergo a CT scan. As the equipment activates, an invisible ray begins rotating around the patient’s body—this is the X-ray, capable of penetrating the body to clearly reveal internal structures, providing critical evidence for disease diagnosis. Behind these radiation applications, a key player operates quietly in the background: the tungsten alloy collimator. Though you may never have heard of it, it functions like a behind-the-scenes hero, influencing the effectiveness of radiation detection and treatment. Why is it entrusted with this responsibility, and what unique properties does it possess?

Radiotherapy equipment is a specialized medical device used for tumor radiation therapy, with its core function being the generation and delivery of high-energy rays (such as X-rays, gamma rays, electron beams, and proton beams) to damage the DNA structure of cancer cells, inhibiting their proliferation and thereby treating tumors. However, radiation is a double-edged sword—it can harm surrounding healthy tissues while targeting cancer cells. At this juncture, a seemingly inconspicuous yet highly critical component—the tungsten alloy collimator—plays a vital role. Acting like a "gatekeeper," it controls the direction and range of radiation, ensuring that rays target cancer cells as precisely as possible. So, what exactly is this tungsten alloy collimator, which plays a key role in radiotherapy, and how does it control radiation?

As a representative material among low-dimensional transition metal dichalcogenides, molybdenum diselenide (MoSe₂) is widely used in various fields such as photocatalysis, energy storage, solid lubrication, microelectronics, and optoelectronics due to its unique crystal structure and excellent thermodynamic properties. Below is an introduction to the basic information of this material.

As one of the most important raw materials for producing hard alloys, the particle morphology, size, particle size distribution range, and impurity content of tungsten carbide (WC) powder directly impact the quality and application of hard alloys. Based on particle size differences, WC powder is categorized into ultra-coarse tungsten carbide, micron tungsten carbide, submicron tungsten carbide, sub-nanometer tungsten carbide, and nano tungsten carbide. So, what are the advantages and disadvantages of submicron WC particles compared to other sizes?

In the field of tumor radiotherapy, radiotherapy equipment uses high-energy rays (such as X-rays and gamma rays) to kill cancer cells while minimizing radiation damage to healthy tissues. Tungsten alloy shielding components, with their exceptional radiation absorption capability, serve as a critical protective element in achieving this goal. The radiation energy in radiotherapy equipment is generally higher than the diagnostic-level rays used in CT machines, placing more stringent requirements on the density, stability, and structural design of shielding materials.

During the operation of a CT machine (short for Computerized Tomography X-ray Scanner), the precise projection of X-rays and radiation protection are core technical requirements, with tungsten alloy shielding components playing a pivotal role in achieving this balance due to their excellent performance. The CT machine generates images through X-ray beam tomography of the human body; inadequate radiation shielding not only threatens the health of medical personnel and patients but may also interfere with the normal operation of the equipment's precision components, making the performance of shielding components critical to equipment safety and imaging quality.

The manufacturing process of high-density tungsten alloy shielding components centers on powder metallurgy technology, combined with subsequent processing, forming a mature production workflow. The specific steps are as follows:

High-density tungsten alloy shielding components offer significant advantages over traditional lead-based shielding components in practical applications.

High-density tungsten alloy shielding components possess high density, excellent ray shielding capabilities, and non-toxic, environmentally friendly characteristics. Their application fields include the medical field, nuclear industry, and more.

High-density tungsten alloy shielding components are functional parts made with tungsten alloy as the core material, primarily used to shield various types of rays such as X-rays and gamma rays. They are widely applied in fields such as medical care and the nuclear industry.