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Technical data


Fine structure of the alpha spectrum of Am-241 with MCA/ alpha spectroscopy

Article no: P2522215

Principle

The alpha-spectrum of an open 241-Am-emitter is measured with a semiconductor a-detector. In connection with a multi channel analyzer the main parts of the spectrum are investigated.

Benefits

  • Alpha spectroscopy of the fine structure of alpha emitting Americium to understand the technique within a practical course
  • The combination of multichannel analyzer (MCA), preamplifier and alpha detector leads to precise results.
  • Transparent glass container with perfect visibility of the whole setup and good vacuum conditions, used in several experiments

 

Tasks

  1. The spectrum of an uncovered 241-Am-emitter is recorded with the multi channel analyzer. The energies of the two peaks preceding the principal peak are calculated. The principal peak, corresponding to a particle energy of 5.486 MeV, is used for calibration purposes.
  2. The resolution capacity of the measurement layout is measured from the half-life width of the principal peak.

 

Learning objectives

  • Energy level diagram (decay diagram)
  • Transition probability
  • Excited nuclear states
  • γ-emission
  • Connection between the fine structure of the α-spectrum and the accompanying γ-spectrum

Scope of delivery

PHYWE Multichannel Analyser (MCA) 13727-99 1
measure Software multi channel analyser 14452-61 1
Alpha and Photodetector 09099-00 1
Radioactive source Am-241, 3.7 kBq 09090-03 1
Container for nuclear physics experiments 09103-00 1
Pre-amplifier for alpha detector 09100-10 1
Diaphragm pump, two stage, 220V 08163-93 1
Tubing connector,Y-shape, ID 8-9mm 47518-03 1
Pinchcock, width 20 mm 43631-20 1
Screened cable, BNC, l = 1 m 07542-11 3
Vacuum gauge DVR 2 pro, 1 ... 1000 hPa 34171-00 1
Vacuum tube, NBR, 6/14mm, 1 m 39289-00 2

PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com