Radiation Portal Monitor (RPM) was designed to detect traces of radiation emitted from an object passing through a RPM. Gamma radiation is detected, and in some cases complemented by neutron detection when sensitivity for nuclear material is desired.
1 heartburn or acid indigestion (acid reflux), 2  bloating, 3  gas, 4  nausea, 5  acidic taste in the mouth, 6  stomach discomfort, 7  constipation or diarrhea, and. 8  decreased appetite. 9  Indigestion has many causes including medical conditions, medications, diet, and lifestyle.
Acid reflux, also known as heartburn, is the most frequent cause of indigestion in the UK. It happens when the valve at the lower end of the oesophagus is abnormally relaxed and allows the stomach's acidic contents to flow back or 'reflux' into the gullet.