phywe-demo-phy-vka-en

Page 1

VKA_GB

20.10.2004

14:26 Uhr

Seite 1

Multi Channel Analyzer Speed up your spectroscopy: Run complete experiments in 45 minutes

Experimental set-up for Alpha-spectroscopy.

Experimental set-up for Gamma-spectroscopy.

Introduction

Principle

The Multi Channel Analyzer is used to analyse voltage pulses proportional to energy as well as to determine pulse rates (intensities) together with detectors for Alpha, Beta or Gamma radiation.

Photon detection is based on interactions between the electromagnetic radiation and the electrons of the detectors. A distinction has to be made between the photoelectric effect, the Compton effect and pair formation. The specific cross-sections for each of these effects are critical in determining the shape of a spectrum and the integral detection probability. They are to a large extent energydependent. The interaction of the , , or radiation with the detector material produces electrical pulses of various amplitudes proportional to the energy loss in the detector. The Multi Channel Analyzer converts these analog pulses to digital values and adds the numerical values in corresponding channels. The resulting energy spectrum represents the probability distribution of the detected radiation as a function of the energy.

Our Multi Channel Analyzer offers the following advantages: No interface required High end physics with modern components for easy set-up Extremely quick set-up and minimum preparation time Easy adjustable resolution from 256 up to 4096 channels per spectrum Excellent reproducibility of the measurement results at the push of a button Works with detectors for Alpha, Beta or Gamma radiation.

10 selected experiments Alpha Spectroscopy

Gamma Spectroscopy

Experiments with Alpha-Particles in Air Rutherford experiment Fine structure of the Alpha-Spektrum of 241Am Study of the Alpha-Energies of 226Ra Energy loss of Alpha-particles in gases

Energy dependence of the -absorption coefficient Compton effect Internal conversion in 137Ba Photonuclear cross-section/Compton scattering cross-section X-ray fluorescence and Moseley's law

PHYWE SYSTEME GmbH & Co. KG · Robert-Bosch-Breite 10 · D -37079 Goettingen · Phone +49/551 604-0 · Fax +49/551 604-107 · www.phywe.com


VKA_GB

20.10.2004

14:26 Uhr

Seite 2

Multi Channel Analyzer Speed up your spectroscopy: Run complete experiments in 45 minutes

Multi Channel Analyzer

Photoelectric and Compton scattering spectrum of 22Na

Resolution:

4096 Channels

Input amplitude:

max. 5 V

Dead time:

60 µs

Amplification:

via Software

Zoom function:

best resolution

Detectors:

, ,

Analog output:

Oscilloscope

Data transfer:

serial or USB

13726.99

Alpha energy spectrum of 226Ra

Components for Alpha, Beta or Gamma spectroscopy Multi Channel Analyzer

13726.99

Multi Channel Analyzer is used in:

Gamma detector

09101.00

Space research (Mars mission)

Operating unit for gamma detector

09101.93

Neutron Spectroscopy in Geology

Alpha detector

09100.00

Organic cell analysis in Medicine

Container for nuclear physics experiments

09103.00

Preamplifier for alpha detector

09100.10

Age determination in archaeology (14C method)

Software Multi Channel Analyzer

14524.61

Energy analysis Laser Physics

PHYWE SYSTEME GmbH & Co. KG · Robert-Bosch-Breite 10 · D -37079 Goettingen · Phone +49/551 604-0 · Fax +49/551 604-107 · www.phywe.com


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