  It has been reported so far that superheated drop detector made of R-12 at
room temperature are sensitive to neutrons yet insensitive to photons. This
property makes its use as one of the most useful neutron dosimeter. The photon
sensitivity of R12 at room temperature when exposed to 59.54kev photons
obtained from radioactive Am has been noted for the first time in our
laboratory. This discovery is important nt only from the point of view of basic
science but more important to the users of R12 in neutron dosimetry to take
note of this in assessing the neutron dose correctly.
