ʻO ka hopena Compton: He hoʻololi i ka hoʻomaopopo ʻana i ka launa pū ʻana o ka radiation a me ka mea
Pendahuluan
He mea koʻikoʻi ka hopena Compton i ka physics, e hāʻawi ana i nā ʻike hohonu i ke ʻano o ka ʻāpana a me ka nalu o ka radiation electromagnetic. Ua kapa ʻia ma hope o kona mea i ʻike, ʻo Arthur H. Compton, hōʻike ia i nā pilina ma waena o nā photons a me nā electrons, e hoʻohuli ana i ke kumumanaʻo quantum a me ko mākou ʻike i ka mea a me ka ikehu. ʻAʻole wale ka hopena Compton i hoʻololi i ka physics hou akā he kuleana koʻikoʻi nō hoʻi i ka hoʻomohala ʻana i ka ʻenehana lapaʻau a me ka astronomy.
Moʻolelo o ka ʻIke ʻana
I ka hoʻomaka ʻana o ke kenekulia 20, ua hoʻomaka kekahi mau hoʻokolohua a me nā kumumanaʻo e hōʻike he mau waiwai pālua ko ka mālamalama, ʻo ia hoʻi he nalu a he ʻāpana. Ua ʻike ʻia ka hopena Compton i ka makahiki 1923 e Arthur H. Compton i kāna hana ʻana i kahi hoʻokolohua e pili ana i ka hoʻopuehu ʻana o nā kukuna X ma nā electrons manuahi. Ua ʻike ʻo Compton ma hope o ka hoʻopuehu ʻana o nā kukuna X i loko o nā electrons, ua loli ko lākou nalu lōʻihi, kahi hanana i hiki ʻole ke wehewehe ʻia e ke kumumanaʻo kuʻuna o nā nalu electromagnetic e like me ka mea i hāpai ʻia e Maxwell. Ua lilo kēia ʻike i wahi huli nui i ka hoʻomohala ʻana o nā mechanics quantum.
Nā Kumumanaʻo Kumu o ka hopena Compton
ʻO ke kumu, hana ʻia ka hopena Compton i ka wā e kuʻi ai kahi photon, kahi ʻāpana o ke kukui, me kahi electron manuahi. Ma kēia kaʻina hana, hoʻoili ka photon i kekahi o kona ikehu i ka electron, e hoʻololi ana i ke kūlana a neʻe paha. Ma muli o kēia hoʻoili ikehu, ʻoi aku ka haʻahaʻa o ka ikehu a me ka nalu o ka photon i hōʻike ʻia ma mua o ka kuʻi ʻana. Ua ʻike ʻia kēia nalu i hoʻonui ʻia ʻo ka neʻe ʻana o Compton.
Ma ke ʻano maʻamau, hiki ke wehewehe ʻia kēia pilina e ka hoʻohālikelike Compton:
\[ \lambda' – \lambda = \frac{h}{m_{e}c} (1 – \cos \theta) \]
Ma hea:
– ʻO \(\lambda'\) ka nalu o ka photon ma hope o ka hoʻopuehu ʻana,
– ʻO \(\lambda\) ka nalu o ka photon ma mua o ka hoʻopuehu ʻana,
– ʻO \(h\) ke kūpaʻa o Planck,
– ʻO \(m_{e}\) ka nuipa o ka electron,
– ʻo \(c\) ka wikiwiki o ka mālamalama,
– ʻO \(\theta\) ke kihi o ka hoʻopuehu ʻana o ka photon.
Nā hopena o ke Kinohi Kuantum
Ua hāʻawi ka hopena Compton i nā hōʻike empirical ikaika e hana ana ka mālamalama e like me kahi ʻāpana, e kākoʻo ana i ke kumumanaʻo quantum i hāpai ʻia e Albert Einstein i kekahi mau makahiki ma mua ma ke ʻano o ka hopena photoelectric. Ua hōʻike kēia hanana e hiki ke ana ʻia ka ikehu a me ka momentum o nā photons a hoʻololi ʻia me ka discrete, ma mua o ka nalu hoʻomau e like me ka manaʻo nalu kuʻuna i hōʻike ʻia.
Ua alakaʻi kēia ʻike ʻana i ka ʻae ʻia ʻana o ka mechanics quantum ma ke ʻano he kumumanaʻo kumu i ka physics hou, e hōʻike ana ma ka pae microscopic, ʻaʻole kaʻawale nā manaʻo o nā ʻāpana a me nā nalu akā ua hoʻohui ʻia.
Hoʻohana ʻana i ka hopena Compton
Ma ke ʻano Physics a me ka Astronomy
ʻAʻole wale ka hopena Compton e lawelawe ma ke ʻano he kumu kumumanaʻo akā he mau noi kūpono hoʻi i nā ʻano like ʻole. I ka ʻike hōkū, ʻae ka hopena Compton i ka nānā ʻana i nā kukuna X a me nā kukuna gamma mai nā mea lani, e like me nā lua ʻeleʻele a me nā pulsars, e kōkua ana i ka hoʻomaopopo ʻana i nā waiwai a me ke ʻano o kēia mau mea. He mea nui nō hoʻi ka hanana hoʻopuehu Compton i ka noiʻi ʻana i ka physics particle, e kōkua ana i ka ʻike ʻana a me ke ana ʻana o nā ʻāpana subatomic.
I ka lāʻau lapaʻau
Ma ke kahua lapaʻau, ʻoi aku hoʻi ma ka radiology a me ka oncology, hoʻohana ʻia ka hopena Compton i nā ʻenehana kiʻi e like me nā X-ray a me nā scan CT. Kōkua kēia hopena i ka hāʻawi ʻana i kahi kiʻi maopopo o nā ʻano kūloko o ke kino kanaka. Hoʻohana pū ʻia ʻo Compton scattering i ka radiation therapy e helu i ka hoʻolaha ʻana o ka nui o ka radiation i loko o ke kino o ka mea maʻi, e hōʻoia ana ua hāʻawi pololei ʻia ka radiation i ka ʻāpana tumor me ka hoʻemi ʻana i ka hōʻino ʻana i nā ʻiʻo olakino.
Ma ka ʻoihana a me ka palekana
Ma nā ʻāpana ʻoihana a me ka palekana, hoʻohana ʻia ka Compton scattering i nā ʻano hoʻāʻo ʻole luku (NDT) no ka nānā ʻana i nā mea a me nā ʻāpana. No ka laʻana, hoʻohana ʻia kēia ʻenehana e ʻike i nā hemahema i loko o nā metala a me nā ʻano hui me ka ʻole o ka hōʻino ʻana i ka mea. Hoʻohana pū ʻia kēia hiki i ka palekana aupuni, me ka ʻenehana scan palekana ukana mokulele e hoʻohana ana i ka X-ray scattering e ʻike i nā mea weliweli.
Nā Pilikia Kiʻekiʻe a me ka ʻImi ʻAna
ʻOiai ua maopopo loa ka hopena Compton, aia nā pilikia a me ka hiki ke noiʻi hou aku i loko o ka pōʻaiapili o ka physics a me ka ʻenehana hou. ʻO ka noiʻi hou e pili ana i nā haʻawina kikoʻī hou aku o nā pilina photon-electron ma nā ʻano like ʻole o ka mea, e like me nā superconductors a me nā semiconductors, hiki ke hoʻomākaukau i ke ala no nā hana hou i ka ʻenehana quantum. Hoʻopuni pū ka noiʻi hou aʻe a puni ka hoʻohana ʻana o ka Compton scattering i nā nanomaterials a me nā biomolecules, me nā noi i ka nanotechnology a me ka biotechnology.
Ka hopena
Ua hōʻailona ka hopena Compton i kahi hanana koʻikoʻi i ka physics o ke kenekulia 20, e hoʻololi ana i ko mākou ʻike i nā pilina ma waena o ka radiation a me nā mea. Me nā noi ma nā kahua like ʻole e like me ka astronomy, ka lāʻau lapaʻau, ka ʻoihana, a me ka palekana, ʻaʻole i hoʻonui wale ka hopena i ka ʻike kumumanaʻo akā ua hāʻawi pū i nā pono kūpono. Ke nānā nei i mua, ʻo ka noiʻi hou aku i kēia hopena e hoʻohiki i nā hana hou aʻe i ka ʻenehana a me ka ʻepekema, e hoʻonui ana i ke ola kanaka a hoʻonui i ko mākou mau ʻike e pili ana i ke ao holoʻokoʻa. Ua waiho ʻo Arthur H. Compton i kahi hoʻoilina ʻepekema mau loa, e hoʻolilo ana i ka hopena Compton i kekahi o nā hanana koʻikoʻi loa i ka mōʻaukala o ka physics.
