Will AI replace radiation therapists?

The biggest change here is physical: systems like CyberKnife image-guided robotic radiosurgery have done tasks such as “Administer prescribed doses of radiation to specific body parts” in real workplaces, about 1h 31m of a typical shift. Most of the rest, 6h 29m, has no AI or robot evidence. BLS expects about 2.8% more of these jobs by 2035.

Time card for radiation therapists showing a typical 8-hour shift: 6h 29m done by people, 1h 31m by robots.
Each mark is 5 minutes of a typical shift for radiation therapists, colored by who does that task today. Estimates from O*NET tasks and Anthropic Economic Index data. How it's made

Home / Healthcare practitioners / Radiation Therapists

Provide radiation therapy to patients as prescribed by a radiation oncologist according to established practices and standards. Duties may include reviewing prescription and diagnosis; acting as liaison with physician and supportive care personnel; preparing equipment, such as immobilization, treatment, and protection devices; and maintaining records, reports, and files. May assist in dosimetry procedures and tumor localization.

Time card

Untick tasks you don't do, or set your own times.
MineTask, by time spentHumanWith AIAIRobot
Position patients for treatment with accuracy, according to prescription.1h 25m a shift · Robots only in factory cells
Why this label?Robots have done this only in factory setups built around the machine, so it stays Human for radiation therapists. How labels work
Administer prescribed doses of radiation to specific body parts, using radiation therapy equipment according to established practices and standards.1h 13m a shift · Robots deployed · e.g. CyberKnife image-guided robotic radiosurgery
Why this label?Marked Robot because CyberKnife image-guided robotic radiosurgery (in real use) has done this task in a real workplace. It shows a robot can do it somewhere, not that most radiation therapists work alongside one. How labels work
Enter data into computer and set controls to operate or adjust equipment or regulate dosage.36m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Review prescription, diagnosis, patient chart, and identification.30m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Maintain records, reports, or files as required, including such information as radiation dosages, equipment settings, or patients' reactions.30m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Check radiation therapy equipment to ensure proper operation.24m a shift · Robots only in factory cells
Why this label?Robots have done this only in factory setups built around the machine, so it stays Human for radiation therapists. How labels work
Observe and reassure patients during treatment and report unusual reactions to physician or turn equipment off if unexpected adverse reactions occur.24m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Educate, prepare, and reassure patients and their families by answering questions, providing physical assistance, and reinforcing physicians' advice regarding treatment reactions or post-treatment care.24m a shift · No AI or robot evidence found
Why this label?This is physical work, and no robot has been shown doing it yet. How labels work
Conduct most treatment sessions independently, in accordance with the long-term treatment plan and under the general direction of the patient's physician.18m a shift · Robots only in factory cells
Why this label?Robots have done this only in factory setups built around the machine, so it stays Human for radiation therapists. How labels work
Check for side effects, such as skin irritation, nausea, or hair loss to assess patients' reaction to treatment.18m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Prepare or construct equipment, such as immobilization, treatment, or protection devices.18m a shift · No AI or robot evidence found
Why this label?This is physical work, and no robot has been shown doing it yet. How labels work
Photograph treated area of patient and process film.18m a shift · Robots deployed · e.g. CyberKnife (Accuray)
Why this label?Marked Robot because CyberKnife (Accuray) (in real use) has done this task in a real workplace. It shows a robot can do it somewhere, not that most radiation therapists work alongside one. How labels work
Follow principles of radiation protection for patient, self, and others.12m a shift · No AI or robot evidence found
Why this label?This is physical work, and no robot has been shown doing it yet. How labels work
Help physicians, radiation oncologists, or clinical physicists to prepare physical or technical aspects of radiation treatment plans, using information about patient condition and anatomy.12m a shift · No AI or robot evidence found
Why this label?This is physical work, and no robot has been shown doing it yet. How labels work
Act as liaison with physicist and supportive care personnel.12m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Schedule patients for treatment times.12m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Provide assistance to other healthcare personnel during dosimetry procedures and tumor localization.12m a shift · No AI or robot evidence found
Why this label?This is physical work, and no robot has been shown doing it yet. How labels work
Calculate actual treatment dosages delivered during each session.6m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Train or supervise student or subordinate radiotherapy technologists.6m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Implement appropriate follow-up care plans.6m a shift · No AI or robot evidence found
Why this label?No AI use or robot deployment showed up for this task in our data. That isn't proof it's safe; it may just be rare in the data. How labels work
Store, sterilize, or prepare the special applicators containing the radioactive substance implanted by the physician.time not estimated · Robots only in factory cells
Why this label?Robots have done this only in factory setups built around the machine, so it stays Human for radiation therapists. How labels work
Assist in the preparation of sealed radioactive materials, such as cobalt, radium, cesium, or isotopes, for use in radiation treatments.time not estimated · Robots only in factory cells
Why this label?Robots have done this only in factory setups built around the machine, so it stays Human for radiation therapists. How labels work

Clock history

  1. 1h 31m touchedFirst published: O*NET 30.1, Anthropic Economic Index (2025 usage and September 2026 robot study), BLS May 2025

When new data changes this clock, the date, the new numbers and the reason are logged here. Company news alone never moves the clock.

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Ask the clock

Will AI replace radiation therapists?

Unlikely, though parts of the work are changing. About 1h 31m of an 8-hour shift goes to tasks touched by robots. The other 6h 29m (81%) stays with people. Separately, BLS expects about 2.8% more of these jobs by 2035 (all jobs: +3.5%).

What can AI already do for radiation therapists?

None of this job's tasks show regular AI use yet. That can mean the work is hands-on or in person, or simply that it rarely comes up in AI usage data.

Where do robots fit in?

For some tasks, yes. Robots have done 2 of this job's tasks in workplaces like this one, about 1h 31m of a typical shift. 5 more tasks have only been done in factory setups built around the machine, so they stay with people here. For 5 physical tasks, no robot has shown it can do the work yet.

  • Administer prescribed doses of radiation to specific body parts, using radiation therapy equipment according to established practices and standards. (1h 13m a shift; e.g. CyberKnife image-guided robotic radiosurgery, in use)
  • Photograph treated area of patient and process film. (18m a shift; e.g. CyberKnife (Accuray), in use)
What still needs a person?

6h 29m of a typical shift, or 81%, goes to tasks with no AI or robot evidence yet. No AI usage or robot deployment has shown up for these so far. The biggest:

  • Position patients for treatment with accuracy, according to prescription. (1h 25m a shift)
  • Enter data into computer and set controls to operate or adjust equipment or regulate dosage. (36m a shift)
  • Review prescription, diagnosis, patient chart, and identification. (30m a shift)
  • Maintain records, reports, or files as required, including such information as radiation dosages, equipment settings, or patients' reactions. (30m a shift)
  • Check radiation therapy equipment to ensure proper operation. (24m a shift)
Why is that work hard to automate?

Much of it comes down to where and how the work happens. In-person, hands-on and high-stakes work is where AI and robots have made the least headway so far. In the official O*NET survey of people in this job:

  • 100% work at arm's length or closer to other people
  • 90% say a mistake would be very or extremely serious
  • 87% are exposed to disease or infection every day
Are employers still hiring radiation therapists?

On Indeed, job postings in the Therapy sector are at 188% of their February 2020 level (all U.S. postings: 104%), up 3.2% from a year earlier, as of Oct 9, 2026. BLS separately expects about 700 openings a year in this job through 2035. Across all U.S. postings, 7.3% now mention AI skills. Sector postings cover more than this one job and move for many reasons besides AI.

How much do radiation therapists make?

The median pay is about $105,310 a year ($50.63 an hour), 107% above the median for all U.S. jobs ($50,980). Most people in this job earn between $80,560 and $156,710 a year; that range covers the middle 80%. Pay figures are from BLS, May 2025, and vary a lot by state and employer. Pick a state to compare:

Is this job growing or shrinking?

BLS projects growth of 2.8% from 2025 to 2035, compared with 3.5% growth for all jobs. That's about 18,000 jobs in 2035. It expects about 700 openings a year, mostly from people retiring or changing careers. These projections don't single out AI as a cause.

How many radiation therapists are there in the U.S.?

About 17,000 people in the U.S., roughly 0.01% of all workers (BLS, May 2025). That makes it the 576th largest of the 796 jobs on this site. BLS expects about 18,000 in 2035.

What training do radiation therapists need?

The most common requirement is an associate's degree: about 50% of people in the job said so in the official O*NET survey. O*NET rates the job at level 3 of 5 for preparation, which usually means: vocational school or associate's degree. Requirements vary by state and employer, especially for licensed work.

What should I learn to stay ahead of AI?

These come from the job's official skill ratings and from the tasks that AI and robots touch least today. Building them keeps you strong in the parts of the work that still need a person:

  • Skills that matter more here than in most jobs: Operations Monitoring, Operation and Control, Service Orientation, Reading Comprehension
  • Get strong at the parts of the job that stay with people (listed above), which take 6h 29m of a typical shift
  • Tools employers list: eClinicalWorks EHR software, Eclipse IDE, Epic Systems, Microsoft Excel, Microsoft Office software
What other jobs could radiation therapists move into?

These use similar skills, with less of a typical shift touched by AI or robots. Matches come from 109 official ratings of skills, knowledge and work activities, and each needs the same or less preparation unless the official list relates the jobs directly:

  • Respiratory Therapists (0m touched, $82k median pay)
  • Diagnostic Medical Sonographers (0m touched, $97k median pay)
  • Cardiovascular Technologists and Technicians (57m touched, $74k median pay)
  • Radiologic Technologists and Technicians (57m touched, $80k median pay)
How solid are these numbers?

Each task carries its own evidence label. For this job: 2 with robots in real deployments, 20 with no AI or robot evidence found. The minutes per task are estimates, not measured hours, and "no evidence" doesn't prove a task is safe.

Tools in demand

  • eClinicalWorks EHR software
  • Eclipse IDE
  • Epic Systems

Plus everyday office tools: Microsoft Excel, Microsoft Office software, Microsoft Word.

Also called

Computed Tomography Simulation Therapist (CT Simulation Therapist), Dosimetrist, Radiation Oncology Registered Nurse (Radiation Oncology RN), Radiation Therapist (RT), Radiation Therapy Technician, Radiation Therapy Technologist (RTT), Radiologic Therapist, Radiology Therapist, Registered Radiation Therapist, Staff Radiation Therapist