Safety methods and apparatus for low dose-rate radiation for medical and veterinary therapies

1. A microbeam radiation therapy system, comprising:

a high-energy electro-magnetic X-ray or gamma ray radiation beam source;

a collimator with slits, wherein the collimator only passes a radiation beam from the radiation beam source through the slits;

a beam filtering and limiting system;

a source shutoff controller connected to the radiation beam source; and

a detector configured to detect events requiring shutdown of the radiation beam source;

wherein the detector is a plurality of motion sensors configured to detect motion of the beam filtering and limiting system, collimator, and a subject treated by the microbeam radiation therapy system.

2. The system of claim 1 , wherein the detector further comprises a radiation detector configured to detect power of the radiation beam.

3. The system of claim 2 , wherein the radiation detector is configured to detect the power of the radiation beam at one of the radiation beam source, beam filtering and limiting system, and collimator.

4. The system of claim 1 , wherein the detector further comprises a plurality of radiation detectors configured to detect power of the radiation beam at the beam filtering and limiting system and the collimator.

5. The system of claim 1 , wherein the detector further comprises a motion sensor configured to detect motion of the radiation beam source.

6. The system of claim 1 , further comprising an operator shutoff switch connected to the source shutoff controller.

7. The system of claim 1 , wherein the detector is a plurality of detectors configured to be redundant.