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People and institutions that designed and built Milagro

 


The Milagro Photo Gallery

Some pictures of the Milagro detector and its construction.

The first picture is of the inside of the Milagro pond after about half of the PMTs where installed and we had just begun filling the pond with water. The reflective collars around each PMT (known as baffles) are used to block light that is traveling horizontally across the pond and to increase the collection efficiency for photons that are traveling downwards.

The next shot is a close-up of several PMTs in the corner of the grid, just after they were installed. The baffles have not yet been installed on the PMTs.

 

A visualization of an actual event as seen by Milagro. The green boxes in the pond represent the amount of light received by each PMT. The white dots hovering above the pond are the individual PMT arrival times fit to a plane. This plane is a measurement of the front edge of the pancake of relativistic particles discussed on the pages describing the detection of cosmic rays.

 

A side view of another event.

 

Diver working on the repair of a PMT.

 

Finally, 2 aerial pictures of Milagro and its environs.

   
     


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