英和和英

名詞

bunchlet (複数形 bunchlets)

1. A small bunch.
   • 2012, Vladimir Nabokov, Look at the Harlequins!:

     She wore a gray tailor-made jacket over a white silk blouse that looked frilly and festive because of a kind of bow between the lapels, to one of which was pinned a bunchlet of violets.

   • 2013, Joseph Connolly, It Can't Go On:

     'It's just as well to know,' intoned Sid, selecting quite studiedly a banana, his fingers darting back for a bunchlet of grapes.

   • 2019, Thomas White, The Runecaster: A Tale of Ancient Germany:

     Yeupp trades a piece of bronze for a bunchlet of radische, whose pink root-fruit is tart and tasty to the tongue.

2. (physics) A very short burst of subatomic particles in the beam of a particle accelerator.
   • 1993, J Rossbach, High Energy Accelerators, page 892:

     For the TS design assumed, the field of an incident bunchlet on the holes is not only coupled to the output but is also scattered back into the beam pipe, exciting waves in both directions.

   • 1994, G. Carron & L. Thorndahl, “Progress with the CLIC Transfer Structures (CTS)”, in Christine Petit-jean-genaz, ‎Vic Suller, editor, European Particle Accelerator Conference (Epac 94):

     In the CLIC design the drive linac uses four trains spaced by 2.84 ns of 43 bunchlets (1 cm bunchlet spacing, 40 nC each) to produce via the transfer structures 30 GHz power pulses of 40 MW for the main linac.

   • 2014, M. Dienes, ‎M. Month, ‎B. Strasser, Frontiers of Particle Beams: Factories with e+ e- Rings, page 165:

     This drive-linac conceptual design implies certain challenges which have been addressed, mainly the bunchlet generation, the transfer structure design and the beam dynamics control.