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Medical Dosimetrists

Generate radiation treatment plans, develop radiation dose calculations, communicate and supervise the treatment plan implementation, and consult with members of radiation oncology team.

3,410 people do this job in the US. $147,470 a year.

now
60%

of the working time. Estimate.

Kinds of work
  • 81%
  • 6%
  • 13%
n/a

Anthropic's data does not cover this job.

Half the desk work within reach
Already

On the chosen pace and reliability. Estimate.

Share of the working time within reach, now to 2030

0%25%50%75%100%2027202820292030NowDesk work: 81% of the time
Chosen to Ceiling: the share
DateNow
NowEnd of 2030

What each choice means: , , , , . Every pace starts from .

At this date and pace, models finish tasks up to 4.4 h long four times in five.

How far this has come

With GPT-4, measured in March 2023, 0% of this job's working time was within reach at . With Claude 3.7 Sonnet, measured in February 2025, 0%. With Claude Mythos Preview (early), measured in April 2026, 48%. Today's estimate: 60%.

0%25%50%2023202420252026GPT-4, March 2023: 0% within reachGPT-4 Turbo (Nov 2023), November 2023: 0% within reachGPT-4o, May 2024: 0% within reachClaude 3.5 Sonnet (June 2024), June 2024: 0% within reacho1-preview, September 2024: 0% within reachClaude 3.5 Sonnet (Oct 2024), October 2024: 0% within reacho1, December 2024: 0% within reachClaude 3.7 Sonnet, February 2025: 0% within reacho3, April 2025: 3% within reachGPT-5, August 2025: 5% within reachGemini 3 Pro, November 2025: 9% within reachClaude Opus 4.5, November 2025: 9% within reachGPT-5.2, December 2025: 13% within reachClaude Opus 4.6, February 2026: 15% within reachClaude Mythos Preview (early), April 2026: 48% within reachToday (estimate), September 2026: 60% within reach
Each step is a new best model measured by METR, four in five; the dashed end is today's estimate. Point at a dot for the model.

A backcast: today's task data with the best model METR had measured by each date. It shows how fast the models have moved, not what anyone forecast at the time.

The tasks

Sorted by . 19 tasks from .

TaskKind
Design the arrangement of radiation fields to reduce exposure to critical patient structures, such as organs, using computers, manuals, and guides.Done hourly or more by most who do it. 15%2.1 h50 min to 4.2 h72%Half by now
Develop radiation treatment plans in consultation with members of the radiation oncology team.Done hourly or more by most who do it. 15%2.5 h50 min to 5.8 h50%Half by now
Identify and outline bodily structures, using imaging procedures, such as x-ray, magnetic resonance imaging, computed tomography, or positron emission tomography.Done hourly or more by most who do it. 12%1.3 h25 min to 3.3 h77%Half by now
Plan the use of beam modifying devices, such as compensators, shields, and wedge filters, to ensure safe and effective delivery of radiation treatment.Done hourly or more by most who do it. 11%1.3 h25 min to 2.5 h87%Half by now
Calculate the delivery of radiation treatment, such as the amount or extent of radiation per session, based on the prescribed course of radiation therapy.Done hourly or more by most who do it. 9%1.1 h25 min to 2.1 h95%Half by now
Develop treatment plans, and calculate doses for brachytherapy procedures.Done more than monthly by most who do it.6%3.3 h1.3 h to 5.8 h45%Half by Oct 2026
Fabricate beam modifying devices, such as compensators, shields, and wedge filters.Done more than weekly by most who do it. 5%1.7 h38 min to 4.2 hStays with people
Supervise or perform simulations for tumor localizations, using imaging methods such as magnetic resonance imaging, computed tomography, or positron emission tomography scans.Done more than weekly by most who do it. 5%1.7 h38 min to 3.3 hStays with people
Calculate, or verify calculations of, prescribed radiation doses.Done hourly or more by most who do it. 5%38 min13 min to 1.7 h95%Half by now
Create and transfer reference images and localization markers for treatment delivery, using image-guided radiation therapy.Done several times a day by most who do it. 5%50 min17 min to 1.7 h96%Half by now
Teach medical dosimetry, including its application, to students, radiation therapists, or residents.Done more than monthly by most who do it. 3%2.5 h50 min to 6.7 hStays with people
Advise oncology team members on use of beam modifying or immobilization devices in radiation treatment plans.Done daily by most who do it. 3%38 min13 min to 1.3 hStays with people

Within reach, per task: the share of the task's time whose instances are short enough for a model to finish at the chosen date, pace and reliability. Half by: the date half of that time comes within reach.

Jobs that share skills with this one

From O*NET's related occupations. Within reach now and by the end of 2028, long-run pace, four in five.

Where this job works

The industry groups that employ the most of it (BLS, May 2025).

Where the most of these jobs are

The metro areas with the most people in it (BLS, May 2025).