Proton pack of the gun to represent the beam. Proton pack The proton pack is an energy weapon used for weakening ghosts and aiding in capturing them within the "Ghostbusters" universe. First depicted in the film "Ghostbusters", it has a hand-held wand ("Neutrona Wand" or particle thrower) connected to a backpack-sized particle accelerator. It fires a stream of highly focused and radially polarized protons that electrostatically traps the negatively charged energy of a ghost, allowing it to be held in the stream. The proton pack, designed by Dr. Egon Spengler, is a man-portable particle accelerator system that is used to create a
Pictet–Spengler reaction Pictet–Spengler reaction The Pictet–Spengler reaction is a chemical reaction in which a β-arylethylamine undergoes condensation with an aldehyde or ketone followed by ring closure. The reaction was first discovered in 1911 by Amé Pictet and Theodor Spengler. Traditionally an acidic catalyst in protic solvent was employed with heating, however the reaction has been shown to work in aprotic media without acid catalysis in superior yields for a variety of cases. The Pictet–Spengler reaction can be considered a special case of the Mannich reaction, which follows a similar reaction pathway. The driving force for this reaction is the electrophilicity of the