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Summary of Contents for DTG-01

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Page 2: ...Geiger Muller Tube 12 Count Rate Vs Dose Rate 13 Measurement of Radiation 14 How Much Radiation is Safe 15 Checking for Radiation 16 Finding Radioactive Sources 17 Separating and Detecting Alpha Beta...

Page 3: ...dditional cost Perfect for schools and industry In the laboratory the Digital Geiger Counter may be used to conduct nu clear experiments and measurements Free Windows 7 graphing programs Graphic Files...

Page 4: ...ticle is detected by the Geiger Counter The PowerSwitch turns power on or off to the DTG 01 The SpeakerSwitch turns the sound on or off to the internal speaker The speaker is a secondary radioac tive...

Page 5: ...ther uR hr or uSv hr If radiation level is significant radia tion level is displayed either mR hr or mSv hr The bottom left switch turns the unit on off A green LED next to the ON label will indicate...

Page 6: ...ted to PC by using either the TTL Serial Output or Digital Pulse Output jacks A 3 5mm stereo to USB cable connected from the TTL Serial Output to PC will allow you to output data to Images Digital Gei...

Page 7: ...ion level every second see photo above The display always shows the previous seconds count and radiation level The count Count Sec is the number of radioactive particles detected in the previous secon...

Page 8: ...n in the 1 minute mode the second line will display the word Initializing for the first 60 seconds Random Number Generator The DTG 01 has a built in Random Number Generator RNG A three position switch...

Page 9: ...ring values for different time units i e Sec onds Minutes Hours or Days The recorded data can be saved and exported as a CSV delimited file for use in various other applications including Word Excel D...

Page 10: ...ton which starts the capturing and plotting pro cess When capturing is in progress the same button will act as a Stop button which stops captur ing and plotting process Graph frame This comprises of a...

Page 11: ...stereo jack as shown on previous page The 5V serial data is sent out as a two byte number most significant byte first with the following specifications 9600 Baud Inverted 8 data bits no parity and one...

Page 12: ...negative charge Beta rays have a greater penetrating power than Alpha rays and can penetrate 3mm of alu minum Gamma rays are high energy photons This has the greatest penetrating power being able to...

Page 13: ...radioactive particle and the positive ion ized atom both move rapidly towards the high potential electrodes of the GM tube In doing so they collide with and ionize other gas atoms This creates a small...

Page 14: ...example a person receiving a dosage of gamma radiation will suffer much less damage than a person receiving the same dosage from alpha particles by a factor of three So alpha parti cles will cause th...

Page 15: ...I do not know what type of radiation a b or y the geiger counter is reading in my lab at any particular instant so I do not know the Q factor of the radiation and therefore can not calculate the mrem...

Page 16: ...n that there is an increase in background radiation To see the percentage increase you would subtract the average CPM number from your reading to see what the increase in radiation is on average To in...

Page 17: ...afe The cesium 137 is a good gamma ray source The cesium 137 has a half life of 30 years Radioactive uranium ore and radioactive isotopes are available for purchase from Images Scientific In struments...

Page 18: ...ates Government to perform such certifications Without this certification you cannot be sure of any claim that a Geiger counter accuracy is valid Below is a picture of an NRC certification label for o...

Page 19: ...umbers one through four paint ed on the edge of a revolving carnival wheel There is a pointer at the top that indicates the number at the top of the wheel The wheel is set into motion spinning very ra...

Page 20: ...tube Ne Halogen filled Mica end window has a 38 effective diameter with a density of 1 5 2 0 mg cm2 Detector Sensitivity Alpha above 3 0 MeV Beta above 50 KeV Gamma above 7 KeV Countable Pulse Resolu...

Page 21: ...DTG 01 21...

Page 22: ...its own discretion repair or replace the Geiger counter if it fails to operate properly within the warranty period provided that it has not been subjected to misuse abuse or neglect Modification or re...

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