SU141553A1 - Instrument for measuring the alpha activity of radon daughters in the air - Google Patents
Instrument for measuring the alpha activity of radon daughters in the airInfo
- Publication number
- SU141553A1 SU141553A1 SU681184A SU681184A SU141553A1 SU 141553 A1 SU141553 A1 SU 141553A1 SU 681184 A SU681184 A SU 681184A SU 681184 A SU681184 A SU 681184A SU 141553 A1 SU141553 A1 SU 141553A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- air
- measuring
- instrument
- alpha activity
- radon
- Prior art date
Links
Landscapes
- Measurement Of Radiation (AREA)
Description
Известны приборы дл измерени «/-активности дочерних продукгоз радона в воздухе не позвол ют улавливать все а частицы, наход щиес в данном объеме воздуха, а поэтому определение полной энергии а-распада при помощи таких приборов производитс со значительной погрешностью .Instruments for measuring the ' -activity of the daughter products of radon in the air are not possible to capture all the particles that are in a given volume of air, and therefore the determination of the total energy of a-decay using such devices is performed with considerable error.
Предлагаемый прибор выполнен в виде насадки к сцинтилл цион ому счетчику, содержащей спиралеобразную камеру, через которую пропускаетс воздух с радиоактивными аэрозол ми. Осаждение аэрозолей производитс в фильтре, закрепленном против плоского сцинтиллиторг . Это отличие позвол ет определить полную энергию а-распада дочерних продуктов радона в данном объеме воздуха.The proposed device is designed as a nozzle to a scintillation counter containing a spiral-shaped chamber through which air with radioactive aerosols passes. Deposition of aerosols is carried out in a filter fixed against flat scintillitorg. This difference makes it possible to determine the total a-decay energy of the radon daughter products in a given air volume.
На чертеже изображен предлагаемый прибор.The drawing shows the proposed device.
Воздух, содержащий радиоактивные аэрозоли, проходит по спиралеобразной камере / и равномерно со всех сторон подводитс к пространству между люминофором 2 и фильтром 3, рассто ние между которыми выбираетс приблизительно равным 2 мм. воздух проходит через фильтр 3 и удал етс по трубке 4, а радиоактивные аэрозоли при этом осаждаютс внутри фильтра. Форма спиральной камеры выбираетс из минимального осаждени аэрозолей на ее стенках.The air containing radioactive aerosols passes through the spiral-shaped chamber I and uniformly from all sides is brought to the space between the phosphor 2 and the filter 3, the distance between which is chosen to be approximately 2 mm. air passes through filter 3 and is removed through tube 4, while radioactive aerosols are deposited inside the filter. The shape of the spiral chamber is selected from the minimum deposition of aerosols on its walls.
Изготовление фильтра с диаметром, равным диаметру люминофора, при рассто нии между ними около 2 мм обеспечивает регистрацию всех вылетевщих с поверхности фильтра в сторону люминофора а-частиц. Спиральна камера насадки не преп тствует движению воздуха и o.j,новременно надежно защищает люминофор от световых лучей. Заданное рассто ние между люминофором и фильтром устанавливаетс при помощи регулировочных винтов 5. Прибор выполн етс в виде насадки к сцинтилл ционному счетчику.The manufacture of a filter with a diameter equal to the diameter of the phosphor, with a distance of about 2 mm between them, ensures the registration of all a-particles emitted from the surface of the filter towards the phosphor. The spiral chamber of the nozzle does not interfere with the movement of air, and o.j, at the same time, reliably protects the phosphor from light rays. The predetermined distance between the phosphor and the filter is set using adjustment screws 5. The device is designed as a nozzle to a scintillator counter.
Предлагаемый прибор может быть использован в медицине и на различных предпри ти х дл контрол загр зненности воздуха производственных помещений дочерними продуктами радона.The proposed device can be used in medicine and in various enterprises to control the air pollution of industrial premises by the children of radon.
Предмет изобретени Subject invention
Прибор дл измерени а-активности дочерни продуктов радона а воздухе, отличающийс тем, что, с целью определени полной энергии а-распада их в данном объеме воздуха, он выполнен в виде насадки к сцинтилл ционному счетчику, имеющей спиралеобразную камеру, через которую пропускаетс воздух, содержащий радиоактивные аэрозоли , с последующим осаждением их в фильтре, закрепленном против плоского сцинтилл тора.A device for measuring the a-activity of the daughter of radon products in the air, characterized in that, in order to determine the total energy of a-decay in a given volume of air, it is designed as an attachment to a scintillation counter having a spiral chamber through which air is passed, containing radioactive aerosols, followed by their deposition in a filter fixed against a planar scintillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU681184A SU141553A1 (en) | 1960-10-06 | 1960-10-06 | Instrument for measuring the alpha activity of radon daughters in the air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU681184A SU141553A1 (en) | 1960-10-06 | 1960-10-06 | Instrument for measuring the alpha activity of radon daughters in the air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU141553A1 true SU141553A1 (en) | 1960-11-30 |
Family
ID=48297490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU681184A SU141553A1 (en) | 1960-10-06 | 1960-10-06 | Instrument for measuring the alpha activity of radon daughters in the air |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU141553A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963730A (en) * | 1989-03-20 | 1990-10-16 | Rad-X Ltd. | Radon progeny detector |
| WO1990015345A1 (en) * | 1989-06-09 | 1990-12-13 | Consultec Scientific, Inc. | Radon monitor and control system based upon alpha particle detection |
| US5204528A (en) * | 1989-06-09 | 1993-04-20 | Consultec Scientific, Inc. | System for determining health risk due to radon progeny and uses thereof |
-
1960
- 1960-10-06 SU SU681184A patent/SU141553A1/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963730A (en) * | 1989-03-20 | 1990-10-16 | Rad-X Ltd. | Radon progeny detector |
| WO1990015345A1 (en) * | 1989-06-09 | 1990-12-13 | Consultec Scientific, Inc. | Radon monitor and control system based upon alpha particle detection |
| US5026986A (en) * | 1989-06-09 | 1991-06-25 | Consultec Scientific, Inc. | Radon monitor and control system based upon alpha particle detection |
| US5204528A (en) * | 1989-06-09 | 1993-04-20 | Consultec Scientific, Inc. | System for determining health risk due to radon progeny and uses thereof |
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