Linear accelerators (Linacs) - Nanotechnology

What are Linear Accelerators?

Linear accelerators, commonly known as linacs, are devices that use electromagnetic fields to propel charged particles to high speeds in a straight line. They are essential tools in various scientific fields, including physics, medicine, and engineering.

How Do Linacs Relate to Nanotechnology?

In the context of nanotechnology, linacs play a pivotal role in the fabrication and characterization of nanoscale materials. They provide high-energy particles that can be used to modify materials at the atomic and molecular levels, allowing for precise control over their properties.

Applications in Material Modification

Linacs are used in techniques such as ion implantation and electron beam lithography. These methods enable the introduction of specific dopants or the creation of intricate patterns on nanomaterials. This is crucial for the development of semiconductors and other advanced materials.

Role in Characterization

High-energy particles generated by linacs are also employed in advanced microscopy techniques. For instance, Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) rely on electron beams to provide high-resolution images of nanostructures. This enables researchers to observe and analyze the morphology and composition of nanomaterials with exceptional detail.

Challenges and Limitations

Despite their advantages, linacs come with certain challenges. The high-energy particles can cause damage to delicate nanostructures, making it essential to optimize the parameters for each specific application. Additionally, the cost and complexity of linac systems can be prohibitive for some research institutions.

Future Prospects

As technology advances, the integration of linacs with nanotechnology is expected to grow. Innovations in miniaturization and automation may lead to more accessible and versatile linac systems, expanding their use in nanotechnology research and industry.

Relevant Publications

Monte Carlo simulation of the Varian TrueBeam flattened-filtered beams using a surrogate geometry in PRIMO.

Issue Release: 2024

Data-driven rapid 4D Cone-Beam CT reconstruction for new generation linacs.

Issue Release: 2024

Treatment planning and delivery practice of lung SBRT: Results of the 2022 ESTRO physics survey.

Issue Release: 2024

Computational and experimental small field dosimetry using a commercial plastic scintillator detector for the 0.35 T MR-linac.

Issue Release: 2024

Analysis of intra-fractional positioning correction performed by cone beam computed tomography in SBRT treatments.

Issue Release: 2024

Artificial intelligence for treatment delivery: image-guided radiotherapy.

Issue Release: 2024

Deep learning-based target tracking with X-ray images for radiotherapy: a narrative review.

Issue Release: 2024

Methodological guide for assessing the carbon footprint of external beam radiotherapy: A single-center study with quantified mitigation strategies.

Issue Release: 2024

Repeatability quantification of brain diffusion-weighted imaging for future clinical implementation at a low-field MR-linac.

Issue Release: 2024

PErspective and current status of Radiotherapy Service in IRan (PERSIR)-1 study: assessment of current external beam radiotherapy facilities, staff and techniques compared to the international guidelines.

Issue Release: 2024

Continuous quality improvement project to reduce the downtime of medical linear accelerators: A case study at Zhejiang Cancer Hospital.

Issue Release: 2024

Sparing the Hippocampus in Prophylactic Cranial Irradiation Using Three Different Linear Accelerators: A Comparative Study.

Issue Release: 2024

Off-iso Winston-Lutz test on seven linear accelerators.

Issue Release: 2024

Diffusion-weighted imaging on an MRI-linear accelerator to identify adversely prognostic tumour regions in glioblastoma during chemoradiation.

Issue Release: 2023

Dosimetric characteristics of 6MV flattening filter free and flattened beams among beam-matched linacs: a three-institutional study.

Issue Release: 2023

Radiotherapy Resources in Latin America and the Caribbean: An International Atomic Energy Agency Analysis of Current and Projected Needs.

Issue Release: 2023

Photoneutrons and Gamma Capture Dose Rates at the Maze Entrance of Varian TrueBeam and Elekta Versa HD Medical Linear Accelerators.

Issue Release: 2023

National Patterns of Early Adoption of Magnetic Resonance Imaging-Guided Linear Accelerators in 2018 to 2019.

Issue Release: 2023

Monte Carlo based continuous aperture optimization for VMAT on conventional and MR-linacs: a proof of concept.

Issue Release: 2023

Impressive reduction of brain metastasis radionecrosis after cabozantinib therapy in metastatic renal carcinoma: A case report and review of the literature.

Issue Release: 2023

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