Text this: Toroidal spectrometer for signal detection in scanning ion/electron microscopes

  _  _     ______     _____   _    _    _____    
 | \| ||  /_   _//   / ___// | || | || |  __ \\  
 |  ' ||   -| ||-    \___ \\ | || | || | |  \ || 
 | .  ||   _| ||_    /    // | \\_/ || | |__/ || 
 |_|\_||  /_____//  /____//   \____//  |_____//  
 `-` -`   `-----`  `-----`     `---`    -----`