Katswiri wopereka chidziwitso cha radiation

Zaka 15 Zopanga Zopanga
mbendera

RJ12 mndandanda wamtundu woyenda pansi, zida zowunikira ma radiation

RJ12 mndandanda wamtundu woyenda wapansi, zida zowunikira ma radiation zomwe zili ndi chithunzi
  • RJ12 mndandanda wamtundu woyenda pansi, zida zowunikira ma radiation
  • RJ12 mndandanda wamtundu woyenda pansi, zida zowunikira ma radiation

Kufotokozera Kwachidule:

RJ12 oyenda pansi ndi phukusi zida zowunikira ma radioactive ndi zida zowunikira oyenda pansi ndi katundu.Ili ndi mawonekedwe okhudzidwa kwambiri, kuzindikirika kwakukulu ndi nthawi yochepa yoyankha, ndipo imatha kuzindikira ma alarm amoto, kusungirako deta ndi ntchito zina.Njira yodziwira nkhope, yophatikizidwa ndi makina oyika okha, imatha kupeza anthu okayikitsa pamalo omwe mukufuna.Itha kugwiritsidwa ntchito m'malo osiyanasiyana olowera ndi kutumiza kunja, monga malire amtunda, eyapoti, masitima apamtunda, masitima apamtunda, malo ogulitsira, etc.


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

luso mawonekedwe

① Mbiri ya BIN (Background Identification of Normal) imanyalanyaza ukadaulo

② MCA multispectrum analyzer, mawonekedwe a SIGMA statistical algorithm

③ NORM ntchito (40K) Kusiyanitsa mwachangu pakati pa ma nuclides odziwika ndi achilengedwe (mwachitsanzo40K,232Th）

④ Ntchito yozindikiritsa Nuclide (yokhala ndi kafukufuku wa sodium iodide / kusankha)

⑤ Kuphatikiza detector ya sodium iodide ndi MCA multichannel energy spectrometer analyzer imatha kusiyanitsa molondola pakati pa ma nuclides azachipatala, ma nuclides aku mafakitale, ndi ma radionuclides achilengedwe.

Natural nuclide 40K,226Ra,232Th
Industrial nuclide 241Ndi,137Cs,60Co,57Co,22N / A,133Ba,54Bambo,88Y
Ma nuclides azachipatala 131Ine,201Tl,203Hg,18F,99m kuTc,99Mo,192Ir
Zida za nyukiliya zapadera 57Co,152EU,238U

⑥ Zitsanzo zothamanga kwambiri (zachangu: 200ms)

 Zizindikiro zazikulu zaukadaulo za chowunikiras

dzina la polojekiti Zambiri za parameter
Mitundu ya zowunikira Plate pulasitiki scintillator + low phokoso photomultiplier chubu
Voliyumu ya detector 5,10,15 kusankha ndi kafukufuku wapawiri (chitseko chosasinthika chapawiri kafukufuku)
Kupambana kwakukulu 106cps
osiyanasiyana mphamvu 25kV ~ 3MeV
kumva m5000cps / (Sv / h) (10 L, wachibale137Cs）
Kuzindikira malire otsika Kutha kuzindikira ma radiation pamwamba pa 5nSv / h
Chosankha chimodzi, chubu cha neutron
  • Mtundu wa probe: moyo wautali3Chojambulira cha nyutroni (1 mumlengalenga kapena kukakamiza kosankha)
  • Mtundu wa mphamvu: 0.025eV (nyutroni yotentha) ~ 14MeV
  • Chiwerengero cha moyo: 1017Chiwerengero
  • Ogwira kudziwika dera kukula: 50mm 600mm, 25mm 600mm, 57mm 1054mm ndi kusankha;
  • Kukhudzika: 75 cps / Sv / h (ogwirizana ndi ena) m252Cf)
  • Chiwerengero chapansi: <5cps
Kuzindikirika kwa dinnuclide mwakufuna
  • Mtundu wodziwira: France SAN Gobain chowunikira chochuluka cha sodium iodide + chotsitsa cha potaziyamu quartz photomultiplier chubu
  • Voliyumu ya detector: 1 l, 2 l mwasankha, yokhala ndi ma probe awiri
  • Mlingo wopambana kwambiri: 106cps
  • Mphamvu yamagetsi: 25keV ~ 3MeV
  • Kumverera: 20,000 cps / (Sv / h) (2 L, wachibale137Cs）

Main luso zizindikiro za dongosolo

1. Kuzindikira kokhazikika (AB)

A. Kuzindikira kosasunthika kwa makina owunikira oyenda pansi

gwero la radioactive Mphamvu yayikulukev

Static kuzindikira bwino

 Mlingo pa 1.5m / (nSv.h-1/MBq
s-1/MBq s-1/(nSv.h-1)
241Am 60 ≥220 ≥94 2.3
57Co 122,136 ≥840 ≥90 9.3
137Cs 662 ≥960 ≥23 42
60Co 1173,1332 ≥1800 ≥11 160
133Ba 3,181,302,356 ≥1680 ≥73 23

kuthira:

1. Gwero loyesera la 252Cf neutron lokhala ndi gwero lolimba la neutroni la 12000 / s (1 ± 20%) limayikidwa pamalo pomwe chowunikira

2. Kuwerengera kwa neutroni kudzakwaniritsa zofunikira za kuchuluka kwa> 100 (1 ± 20%) / s.

Kuzindikira kokhazikika kwa makina owunikira phukusi la B-row

gwero la radioactive Mphamvu yayikulukev

Static kuzindikira bwino

 Mlingo pa 1.5m / (nSv.h-1/MBq
s-1/MBq s-1/(nSv.h-1)
241Am 59.5 ≥480 ≥92 5.2
57Co 122,136 ≥2400 ≥114 21
137Cs 662 ≥2640 ≥28 95
60Co 1173,1332 ≥5760 ≥16 360
133ba 3,181,302,356 ≥4560 ≥88 52

2. Kuzindikira

Njira yowunikira anthu oyenda pansi ndi njira yowunikira phukusi

Woyenda pansi: Kutheka kuzindikirika f 90% liwiro v=1.2m/s

Phukusi la mzere: mwina f 90% liwiro v=1m / s

gwero la radioactive Ntchito kapena khalidwe
137Cs 0.08MBq
60Co 0.02MBq
241Am 2.27MBq

3. Ntchito yotsutsana ndi kusokoneza kwa chowunikira cha nyutroni

Pamene gwero la 60Co limapanga mlingo wa mlingo pakatikati pa geometric detector ya nyutroni pamwamba pa 120 Sv / h, makina owunikira sayenera kuyambitsa alamu ya nyutroni.

4. Alamu yabodza: ​​0.01% (, neutron)

Kuthekera kwa alamu yodziwikiratu chifukwa cha zinthu zopanda ma radio kapena zomwe si SNM

5. makhalidwe mochulukira

Pamene detector pamwamba mlingo mlingo ndi> 120 Sv / h, kuwunika dongosolo kusunga alamu ndi kubwerera kumbuyo, ndipo nthawi yotulutsa alamu ndi zosakwana 60s.

6. Kumverera kosasinthasintha

M'kati mwa malo odziwika

Oyenda pansi ± 25% Line Pack ± 25%

Zizindikiro zazikulu zaukadaulo zozindikiritsa ma nuclide (posankha)

Misalarm rate

M'malo okhazikika:

Gwiritsani ntchito sensa yamlengalenga, nthawi 10000, ma alarm abodza 1

Popanda kugwiritsa ntchito sensa yokhalamo, kuchuluka kwa ma alarm abodza komanso kuzindikirika kolakwika kumagwiritsidwa ntchito kamodzi mkati mwa 12h

γ Kuyankha kwa radiation

Kugwira nthawi 50, alamu 49 nthawi

Zokwiyitsa

Kupitilira 100 v S / h, alamu yowunikira kwambiri imatulutsidwa ndikuchotsedwa mkati mwa 1min pambuyo gwero lichoka.

Alamu ya neutron yopangidwa ndi ma radiation

Palibe alamu ya nyutroni yomwe imayambitsidwa pamene mlingo wa γ-ray ufika 100 Sv / h

Chikoka chakumbuyo

Pamene kusintha kwakumbuyo kuli kwakukulu kokwanira kupangitsa kusintha kwakukulu kwa alamu, makina owunikira adzapereka chenjezo lochenjeza.

Kuzindikira kwa Nuclide

Natural nuclide 40K,226Ra,232Th
Industrial nuclide 241Ndi,137Cs,60Co,57Co,22N / A,133Ba,54Bambo,88Y
Ma nuclides azachipatala 131Ine,201Tl,203Hg,18F,99m kuTc,99Mo,192Ir
Zida za nyukiliya zapadera 57Co,152EU,238U

Zindikirani: Kuzindikiritsa kwa Nuclide ndi kuzindikira kwa neutroni ndizosankha, osati mudongosolo lokhazikika

Mtundu wadongosolo

图片1

Chithunzi 1. Phukusi ndi kuyang'anira ma radiation oyenda pansi

图片2

Chithunzi 2. Zida zowunikira ma radiation oyenda pansi

  • Zam'mbuyo:
  • Ena:

    • ZOKHUDZANA NAZO