ʻO PbWO₄ Kilika, Pwo Crystal, Pbwo4 Crystal, Pwo Scintillator

PbWO₄ Scintillator, Pwo Crystal, Pbwo4 Crystal, Pwo Scintillator Kiʻi Hōʻike ʻia

wehewehe pōkole:

Lead Tungstate - PWO (a i ʻole PbWO₄) he mea hoʻoheheʻe gamma-ray maikaʻi loa ma muli o kona kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe Z. He wikiwiki loa hoʻi me ka lōʻihi pōkole loa a me ka radius moliere.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Pōmaikaʻi

● Mana kū maikaʻi

● kiʻekiʻe kiʻekiʻe

● Kiʻekiʻe irradiation ikaika

● Ka manawa pohō wikiwiki

Palapala noi

● Positron Emission Tomography (PET)

● Kiʻekiʻe ikehu wahi physics

● Kiekie ikehu nukelea

● lāʻau nukelea

Waiwai

ʻO ka mānoanoa (g/cm³)	8.28
Helu ʻAtoma (Hōpono)	73
Ka lōʻihi o ke kukui （cm）	0.92
Manawa Pohō (ns)	6/30
Loʻihi nalu (Max. Emission)	440/530
Huaʻai Photoelectron % o NaI(Tl)	0.5
Lae hehee(°C)	1123
Paʻakiki (Mho)	4
Hōʻike Hōʻike	2.16
Hygroscopic	No
Huina Hoonui wela.( C⁻¹)	10.0 x 10‾⁶
Mokulele ʻo Cleavage	（101）

Hōʻike huahana

ʻO ka tungstate alakaʻi (PbWO₄/PWO) he aniani scintillation maʻamau i hoʻohana ʻia i nā hoʻokolohua physics kiʻekiʻe a me nā noi kiʻi olakino e like me PET (positron emission tomography) a me CT (computed tomography) scanners.ʻO kekahi o nā waiwai koʻikoʻi o PWO, he kiʻekiʻe kona kiʻekiʻe, kahi e hiki ai iā PWO ke hoʻopaʻa i nā kukui gamma ma mua o nā kristal scintillation ʻē aʻe.ʻO kēia ka hopena i ka lākiō hōʻailona-a-noise kiʻekiʻe a ʻoi aku ka maikaʻi o ka hoʻonā ʻike ʻana i ka radiation.ʻIke ʻia nā kristal PWO no kā lākou manawa pane wikiwiki, kahi e kūpono ai no nā ʻōnaehana kiʻekiʻe kiʻekiʻe.

Kūleʻa lākou i ka pōʻino radiation a me ke kūpaʻa lōʻihi, e hana ana iā lākou i koho hilinaʻi no nā noi kaiapuni paʻakikī.Eia naʻe, ʻo ka haʻahaʻa haʻahaʻa haʻahaʻa o nā kristal PWO i hoʻohālikelike ʻia me nā mea scintillation ʻē aʻe e kaupalena i ko lākou naʻau i kekahi mau noi.Hoʻoulu pinepine ʻia nā kristal me ka hoʻohana ʻana i ke ʻano Czochralski a hiki ke hoʻoheheʻe ʻia i nā ʻano like ʻole e pili ana i ka noi.Loaʻa i nā crystals scintillator PWO nā pilikia e pono e ʻike ʻia: He haʻahaʻa haʻahaʻa ka puka māmā o PWO.He radioactive maoli lākou e ʻae ʻole ia no kekahi mau noi.Hiki lākou i ka pōʻino radiation.E hoʻomaka ana me ka nui ma waena o 1 a me 10 Gray (10² - 10³ rad).A hiki ke hoʻohuli ʻia me ka manawa a i ʻole annealing.