Some may feel fatigue, shortly after treatment, while others only feel it after a few sessions of radiotherapy. You can resume your daily activities if you do not feel tired and your doctor has given you the clearance to do so.
Radiotherapy is a non-invasive, highly effective cancer treatment. It uses high-energy particles or waves to target and shrink cancer cells. It is important for many cancer treatment plans and offers various benefits:
Beacon Hospital is the 1st Southeast Asia hospital to introduce Varian Halcyon™ 2.0 radiotherapy machine to its cancer patients. It can be used to treat head & neck, lung, breast, prostate, cervix and other forms of cancer.
The Halcyon™ system offers faster, more efficient treatment with a streamlined 9-step workflow, allowing some sessions to be completed in as short as one minute.
With the latest upgrade to Halcyon™ 4.0, Beacon Hospital delivers even more precise treatment and cancer care.
This technology also meets the highest safety standards, having received FDA 510(k) clearance from the United States Food and Drug Administration in June 2017, providing added reassurance to our patients. Find out more
Beacon Hospital installed the Varian TrueBeam® 2.7 radiotherapy system in September 2019, the advanced radiotherapy technology from Varian Medical Systems.
With the newly upgraded version to TrueBeam® 4.1, this new generation of linear accelerator can deliver much faster and accurate radiation dose compared to conventional radiotherapy system. TrueBeam® 4.1 rotates around the patient to deliver specifically targeted beams of radiation with pinpoint accuracy. TrueBeam® 4.1 can be used to treat a diverse range of cancers, including tumours of the lung, breast, head and neck, abdomen, liver, and other regions. Find out more
Supports up to 20 calibration protocols per imaging device, enabling automated selection based on image type and energy for safer, more efficient advanced imaging.
Tailor treatment plans with improved multi-workspace integration and better documentation tools for streamlined reviews.
Enhanced Leaf Modelling (ELM) provides a new level of precision in dose calculations for radiation therapy, particularly for small field sizes and dynamic MLC sequences. More accurate treatment delivery to the patients
The SBRT Normal Tissue Objective (NTO) improves the precision of radiotherapy by intelligently guiding dose distribution to minimize exposure to surrounding healthy tissues while maintaining optimal tumor coverage.
By automatically shaping and refining dose gradients, SBRT NTO reduces the complexity of treatment planning, enabling clinicians to generate consistent, high-quality plans with greater efficiency and confidence.
This empowers radiation oncology teams to achieve better clinical outcomes with streamlined workflows and reduced planning variability.


Beam-on time could be as fast as 1 minute plus*. (*depends on types of tumour )
The unique design of dual-layer multi–leaf collimator (MLC) enables accurate delivery of the radiation dose to the tumour.
The reduction in interleaf leakage helps to reduce unwanted radiation dose to critical structures, thus, minimising side effects.
A quick and quiet treatment helps to reduce anxiety in patient.
A spacious 100cm diameter bore with integrated ambient lighting puts claustrophobic patient at ease. Couch descends low to the ground for easy loading and unloading of the patient.
The integrated couch-mounted camera travels with the patient, enabling the radiographer to clearly monitor the patient during the treatment.


Treatments that once took 10 to 30 minutes can now be completed in several minutes. With fast treatment, there is less chance of tumour and patient movement.
The advanced architecture integrates imaging, real-time tracking, respiratory gating, and treatment delivery. This makes the delivery of treatments quickly and accurately while monitoring and adjusting for tumour movement. This is to ensure that radiation is delivered only when the tumour is in the right place.
Advanced real-time imaging technique enables clinicians to monitor the tumour they treat in 3D & 4D, and target tumours with submillimetre accuracy. These images will be used to fine-tune a patient’s position prior to and during the treatment process. It can rotate around the patient to deliver a prescribed radiation dose from nearly any angle.
Its precision is measured in increments of less than a millimetre. The system performs accuracy checks every 10 milliseconds. This helps the radiation oncologist to deliver radiation beam precisely to tumours. Thus, avoiding critical organs and healthy tissue surrounding the tumour and minimising side effects. The system generates images 60 percent faster than older technology, an enhancement that allows the reduction of X-ray dose to the patient by 25 percent.
Laser Guard II is an integrated patient and equipment collision detection system. The system uses and infra-red laser scanning device that continuously monitors the contoured region between the collimator face and the patient. If an object enters the protection zone, the Laser Guard II stops or inhibits motions prior to a potential collision. This is particularly useful when performing remote gantry or couch rotation. The patient can feel more comfortable and relax, listen to their favourite music while being treated.






Introduced in 2017, Varian Halcyon is the latest radiotherapy machine which delivers treatment fast, accurately and is built with patient comfort and safety in mind. For example, a 2 partial arc RapidArc lung treatment session can be completed in approximately 2 minutes (imaging – 15 seconds and treatment – 1 minute 30 seconds). The dual-layer multi-leaf collimator comes with a stacked and staggered design, with interleaf leakage of 0.01%, which means the risk of unnecessary radiation to healthy tissue nearby is low.
Your radiation oncologist will advise on exactly how many treatment sessions you need for your condition. Typically, radiotherapy is given once a day, five times a week for 5-7 weeks and takes a few minutes in the machine each day of treatment.
The side effects vary depending on the body area being treated with radiotherapy. Common side effects you may experience include fatigue, nausea, and skin changes. Your consultant will elaborate more on these and other side effects that you might experience
Some may feel fatigue, shortly after treatment, while others only feel it after a few sessions of radiotherapy. You can resume your daily activities if you do not feel tired and your doctor has given you the clearance to do so.
TrueBeam® is an advanced radiation therapy system that delivers concentrated beams of radiation to tumours in the body. Each TrueBeam® 4.1 treatment consists of a beam of radiation (or collection of beams) generated by a linear accelerator from inside the TrueBeam® 4.1 system.
TrueBeam® allows pinpoint positioning and CT imaging through advanced imaging technology. The treatment beam can be targeted to a tumour from multiple angles to strike the target in a complete three-dimensional way. The goal is to deliver the lowest possible dose to the surrounding healthy tissue, while still releasing the maximum dose to the tumour.
This version of TrueBeam® offers the latest patented technology by Varian known as HyperArc® – High-Definition Radiotherapy, able to offer high-quality linac based radiosurgery treatment.
HyperArc® could irradiate multiple tumours at the same time without repositioning the patient, which provides better management of patient motions while saving time for the patient and the clinical team.
The delivery of a patient’s treatment varies depending on the diagnosis and the site of treatment. Your attending physician will be able to give the detail information on the course of your treatment protocol. Generally, radiotherapy treatment is given 5 times a week and the total length of treatment will be according to your prescribed treatment protocol.
Due to its accuracy, the TrueBeam® 4.1 system can be used to treat majority forms of tumours, including those located in sensitive areas. For example, lung, liver, lymph nodes, spinal cord, breast, head, neck, abdomen and brain.
Radiotherapy, although not painful, can cause uncomfortable side effects. However, with the advancement of the TrueBeam® 4.1 system, these side effects can be minimised. Talk to your doctor about what to expect from your treatment and find out more about your treatment protocol.