3b-scientific Cloud Chamber User Manual download pdf

3B SCIENTIFIC

PHYSICS

Cloud chamber U8483220

Instruction sheet

11/07 SP/ALF

1 Cover plate

2 Supporting rod

3 Base-plate

4 Rubber bellows

5 Filling nozzle (with thread for

attaching radiation cartridge)

6 Absorption foil on hinged

support

1. Safety instructions

• In experiments with radioactive substances, ob-

serve the regulations that currently apply for the

region (e.g., radiation protection regulations).

2. Description

The cloud chamber is used for making the tracks of

ionising radiation visible (especially for α radiation).

The cloud chamber consists of a thick plate of Plexi-

glas fixed above a base-plate with a gas-tight seal. In

the centre of the base-plate there is a nozzle onto

which a rubber bellows is pushed. There is also a

foam rubber pad recessed into the base-plate, which

provides resistance against the air flow during the

adiabatic expansion of the gas filling. In the chamber

there is an absorption foil (paper) held on a hinged

support. One suitable radiation source for use with

the cloud chamber is the radium radiation cartridge

(U8483110), which can be screwed into an off-centre

threaded hole in the base-plate. A supporting rod on

the side of the cloud chamber allows it to be clamped

to a stand.

The fluid used in the cloud chamber is a mixture of

methanol and water in the proportion 50:50.

A cloud chamber such as this does not need to have

its design licensed, but this model is in fact licensed

as a radiation-proof holder for the radiation cartridge

U8483110. The cloud chamber thus qualifies under

radiation protection provisions (e.g. II. SVO § 9, 4 in

Germany), whereby its design is officially approved

(PTB No. VI B/S 3516) and licensed (licensing docu-

ment BW 8/65/II).

3. Technical data

Chamber dimensions: 15 mm x 90 mm dia.

Supporting rod: 45 mm x 10 mm dia.

Weight: 600 g approx.

Cloud chamber fluid: methanol/water 30 ml

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3B SCIENTIFIC 1
PHYSICS 1

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Cloud chamber U8483220 Instruction sheet 11/07 SP/ALF 1 Cover plate 2 Supporting rod 3 Base-plate 4 Rubber bell

Page 2

2 4. Operating principle Experiments by R. von Helmholtz in 1887 showed that ions in an atmosphere supersaturated with water vapour act as condensatio

Page 3

Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com 3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany

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3b-scientific Cloud Chamber User Manual

Browse online or download User Manual for Health and hygiene 3b-scientific Cloud Chamber. 3B Scientific Cloud Chamber User Manual [de]

Summary of Contents

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