Correction – the standard muon flux 10,000/m^2 at sea level – so the flux is based on a square meter and the box looks to be far less area – so it could be perhaps 10-20% efficient.
From: Jack Cole Ø Dirt Cheap Muon Detector Puts Particle Physics Within DIY Reach http://flip.it/0.QD-k This device is seeing one muon per second at sea level in Boston. The actual flux is about 150 per second, so the detector is less than 1% efficient. It would be most interesting for Hagelstein/Swartz to borrow one of them - so as to place a detector near an experiment which is known to produce excess heat. This begs to be done. And the normal muon flux makes the Holmlid claims of laser irradiation, which are apparently producing 100,000 times greater muon flux, all the more impressive – if true. Even if Holmlid’s detector is 100% efficient, the results are extremely impressive. This could explain why a LENR device, if muons are being produced, can have no apparent thermal gain at times … assuming muons are a type of energy release which happen irregularly, along with other kinds of energy release. The muons have a long life (relatively speaking) and would decay tens of meters away from the experiment, and be missed normally.
