pancake detector with mica window. Connected with crocodile wires in parallel to the Aliexpress Geiger counter.

this was a summary video what I have done because will forget after some months or a year. I have taken the setup apart as it occupied a desk and there are other physics experiments to try.

Trivial measurements. My first suprise was that Latvian belowed silver coin was not pure silver.

found the place where white scale with a dark hair and dark scale with a transparent slit is placed. It is after the lamp collimating lens in the lamp assembly

FAKE? kzbin.info/www/bejne/ZnzNaJ6JeN2ao68si=uQ5nQRQsa8REQ_P2

i remember 20 years ago i had a neon tube for my pc...but insted of neon light it had a lightning held in it like this did ...im so mad it broke i want them again

Neat!

#VerticalVideosSuck

actually it was not leaking out of radon but the 1 min short halftime of thoron isotope - radon from thorium-containing granite.

The BF3 neutron detectors have a very short shelf and service life. However they are true geiger tubes 3He detectors are much better but have a very tiny output in what is called proportional mode. You can make your own neutron detection geiger tube by adding triethyl or trimethyl borane to argon or neon. Shild the tube with a few mm of lead to exclude gamma.

new friend

TV flybacks almost always have internal diodes inside the potted housing, since DC is necessary for CRT anode power supplies. Unless you have proven by experiment that there is no diode rectifying the output, you should assume it is a pulsed DC output - not AC. That would explain the behavior with the magnet.

Natural background at sea level was only 4…12 n/min. Smoke detector Am pill in contact with BF3 tube or Be window from an x-ray tube (or Li from CR2302 battery) gave only 1n/s which was too little to observe Al or Ag activation. Not worth to try. And Fusor which could give more n/s presently have no motivation to build. It was a steep learning curve about n physics and electronics.

cool i guess

HAAAAAAAAAAAAAAAAAAAAAAAAAAAAHAHAHAHAHAHAHAHAAHAHAHAHAAHAHAHAH. TENGO 1 ARMADO Y SOLO LOGRE -10° BAJO CERO CON ISOBUTANO.- FAKE SOS VOS JAJAJAJAJAJAJAJAJA

Absolutely beautiful equipment

Finding specific scientific publications that directly cite the use of the Salaspils electron accelerator is challenging due to limited openly available documentation. However, this facility, historically part of the Salaspils Nuclear Reactor complex, contributed to research in areas such as materials science, radiation chemistry, and medical isotope production during its operational period. Collaborative work often involved institutions like the University of Latvia

The electron accelerator in Salaspils, Latvia, is a key piece of scientific infrastructure at the Institute of Physics of the University of Latvia, located in the town of Salaspils. This facility has historical and contemporary significance in the fields of nuclear physics, radiation research, and material science. Key Features of the Salaspils Electron Accelerator: Historical Background: Initially, the Salaspils site housed a nuclear reactor, which was established during the Soviet era in 1961 for research and energy production. The reactor was decommissioned in 1998, and attention shifted to other high-energy facilities, including the electron accelerator. Purpose of the Accelerator: The electron accelerator in Salaspils is designed for producing high-energy electron beams used in research. It supports experiments in radiation physics, material analysis, radiobiology, and other applied sciences. Applications: Material Research: High-energy electrons are used to study and modify materials, including their structural properties and radiation resistance. Radiation Studies: The accelerator aids in understanding the effects of radiation on various biological and physical systems. Industrial Applications: Used for testing components and developing radiation-based technologies. Medical Research: Some studies involve applications in radiotherapy and dosimetry. Modern Developments: The facility has undergone modernization to align with contemporary scientific needs and safety standards. It serves as a key hub for collaboration between Latvian researchers and international scientists. Role in Latvian Science: The Salaspils electron accelerator is a cornerstone of Latvia's scientific infrastructure, attracting both local and global research projects. It also plays a role in educational initiatives, providing a platform for training and developing expertise in nuclear and radiation physics

they use encoders on the motors to determine how much it has moved

Interesting !

we have 20-30 mR/h. But the glassblower cleans the vacuum tubes for ca 5 min only.

Milli-Roentgen (mR): This is a smaller unit of measuring ionizing radiation. 1,000 mR = 1 R The safe radiation exposure rate for the public is 2 mR/hour. The safe radiation exposure rate for a certified radiographer is 5 mR/hr

this is an amazingly sensitive method gives a lot if statistics. 250 liters/min. Usually we brease in 8 liters/min. 30 times less then by vacuum cleaner. So inside lungs would be ca 300 cpm from radon. May be should wear a covid mask like people who go on excursions in old uranium mines.

Thanks 😊

Amazing Trip with Radiacode!

Whay in saulkrasti is cesium? Chernobil rain?

It has been known since the 1930s that Brazil nuts contain relatively large concentrations of barium (approximately 0.1-0.3% by weight). In our laboratory we measured the barium content in the meat (endosperm) of the nut at close to 0.3%. That Brazil nuts also contain high levels of radium was first reported in the 1950s (Turner et al 1958). Barium and radium are group II elements and their chemical behavior is very similar. The difference between the barium and the radium is that radium is radioactive. To be specific, the radium in Brazil nuts is a mix of Ra-226 and Ra-228. Of course, the various decay products of Ra-226 and Ra-228 are also present. Although the radioactivity is not high enough to be detectable with a simple survey instrument, a one to five minute count on the powdered meat of the nut with a pancake GM or ZnS detector connected to a scaler will indicate that the beta and alpha activities are significantly above background. Brazil nuts are the seeds of Bertholletia excelsa, a large tree that is grown in various parts of world, not just Brazil. The nuts, in groups of 12 to 25 much like the sections of an orange, form the globular (4-6” diameter) fruit of the tree. It is not true, as is sometimes thought, that the high concentration of radium in Brazil nuts is due to elevated levels of the uranium and/or thorium series in the soil in which the tree grows. The accumulation of the radium (and barium) is due to the very extensive root system of the tree. For what it’s worth, measurements by Penna-Franca et al indicated that higher radium concentrations are found in the leaves and cork of the tree than in the nut. The Brazil nut has a high lipid (ca. 60%) and protein (ca. 15%) content. The calcium content is ca. 0.2%. Radium Content As might be expected, the reported concentration of Ra-226 and Ra-228 vary, but overall, the radium concentrations in Brazil nuts are 1,000 times higher than those in other foods. The following are representative of some of the measurements that have been performed: Turner et al (1958): approximately 1.8 pCi/g Ra-226 Penna-Franca (1959): approximately 2 pCi/g Ra-228 Penna-Franca et al (1968): 075-3.6 pCi/g Ra-226 in the nut (3.1-113.5 pCi/g in ash of nut) 16- 3.6 pCi/g Ra-228 in the nut (5.3-114.5 pCi/g in ash of nut) Smith (1971): up to 6.6 pCi/g Ra-226 in the nut Gabay and Sax (1969) determined that most of the radium of ingested Brazil nuts was not retained by the body. References Drury et al. Radioactivity in Food Crops. ORNL-5963. 1981. Eisenbud, M., Gesell, T. Environmental Radioactivity. Academic Press. 4th edition; 1997. Gabay, J.J., Sax, N.I. Retention of radium due to ingestion of Brazil Nuts. Health Physics 16: 812-813; 1969. Smith, K.A. The Comparative Uptake and Translocation by Plants of Calcium, Strontium, Barium, and Radium. Plant and Soil 34:369-379; 1971. Turner, R.C., Radley, J.M. Mayneord, V.W. The Naturally Occurring Alpha Ray Activity of Foods. Health Physics 1: 268-275; 1958. Penn-Franca, et al. Radioactivity of Brazil Nuts. Health Physics 14: 95-99; 1968.

ring printed from PLA with 100% infill

Dr. Doofenshmirtz sounding ahhh

😮 thank you

Yup fun😊 but toxic ☠️

Brazil nuts are still delicious 😂 But it's more fun to check them with a radiacode

It was difficult to clean the table from soot. Needed Fairy dishwashing soap.

Hi sir please answer I really need

correction - the ionisation chamber of the final product is not 3D printed but made from moulded pladtic

hi bro, what is the name of the container that ash ash?

For a sec I thought that was 50k cpm not cps 😅

Does the spectrum show any radon daughters

Another video: Highly Radioactive People

Радиоактивные люди [Евгений Соловьев]

not sure which isotope radiated: technetium, may be iodine, or may be barium?

It's like hide and go seek but with gamma rays 😂 Radiacode is the best

Took the drone to countryside where was no pollution by WiFi networks and drone started to behave predictably and not loose radio control.

found the cause of loss of remote control. Battery compartment of the transmitter has contacts too short for thebpositive pole causing power loss. Soldered a blob of solder to make positive terminal longer

Discovered how not to loose the drone. Tie a thread or fishing line.

Thank you! I was also there with young people of Austrira.

radon in the room is emmited mainly by concrete cealing. This is noticed because A0 paper poster upper edge becomes more active than the lower side closer to floor covered by vynil.

video about photodiode detector running from battery too ч7☢ ВНУТРЕННОСТИ индикатор радона RADEX MR107+ Plus(радэксMR107+ПЛЮС)дозиметр-радиометр[bro_neutron]

found a video about photodiode radon monitor running on 3 AA batteries: разбор (внутрености), индикатор альфа частиц газа радона Airthings Home Canary AIRTHINGS CANARY

in the box below is OPA128 amplifyer with 3 Gohm feedback resistor x10 by output divider trick how to get effectove 30GOhm feedback resistor. This was my first detector circuit. Later I used cheap opamps like in CERN photodiode radiation detector.