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NIR ã¬ãŒã¶ãŒ ããŒã ã®æ®ãã®éšå㯠4 ã€ã®ããŒã ã«åå²ããããã«ã¹å åšæ³¢æ°å·®ãçæããããšã«ãã£ãŠ XNUMX ã€ã®åäžãµã€ã¯ã« ãã©ãã«ã ãã«ã¹ãçæããããã«äœ¿çšãããŸãã
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é»åãå STEAM ããã€ã¹ã«å ¥ããšãé»æ°ããã³ç£æ°ã³ã³ããŒãã³ãã«ãããããŸãã ããŒã¬ã³ãå*.
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ç»å #2
ç»åã§ãããããã« 2а О 2b, åSTEAMããã€ã¹ã®å éšã§ã¯ããã©ãã«ãããŒã ã¯èãéå±ã·ãŒãã«ãã£ãŠæšªæ¹åã«åãã®ç°ãªãããã€ãã®å±€ã«åå²ãããåå±€ãå°æ³¢è·¯ãšããŠæ©èœããç·ãšãã«ã®ãŒã®äžéšãçžäºäœçšé åã«äŒéããŸãã ãã©ãã«ãã®å°éæéã調æŽããããã«ãåå±€ã«ã¯èªé»äœãã¬ãŒãããããŸãã æ³¢é¢* é»åã®åã§ã
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ãã®æ§æã«ãããé»åããŒã ã®å°Ÿéšãå éãããã®é éšãæžéãããã®çµæã匟é瞊æ¹åã®éæãçããŸã (2а О 2c).
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STEAMãã³ãã£ãŒïŒããŒã å§çž®æ©ïŒã«é»åãäŸçµŠããããã«äœ¿çšããããã©ãã«ããšãã«ã®ãŒã¯ããã2Ã50nJã§ãããSTEAMã©ã€ããã¯ïŒç·åœ¢å éåšïŒã«ã¯2Ã15mJãå¿ èŠã§ããã
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ç§åŠè ãã¯ãå±€ã®æ°ã XNUMX ã€ã®ããã€ã¹ããããã®æ©èœã«çŽæ¥é¢äžããŠããããšã«æ³šç®ããŠããŸãã ããšãã°ãããé«ãå éçãéæããã«ã¯ãçžäºäœçšãæé©åããããã«ããå€ãã®å±€ãšç°ãªãé«ãã®æ§æãå¿ èŠã«ãªããŸãã
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ç§åŠè ãã¡ã¯ãããã®çè«ãå®éã«ãã¹ãããããšã«ããŸããã ãããè¡ãããã«ã圌ãã¯ç°ãªãæç¶æéã®é»åããŒã ãå°å ¥ããæåã® STEAM ããã€ã¹ (STEAM ãã³ãã£ãŒ) ã䜿çšããŠå§çž®ã«ãã£ãŠå¶åŸ¡ããŸããã
ç»å #3
ã³ã³ãã¬ããµãŒãé»æºã«æ¥ç¶ãããŠããªãå ŽåãçŽ 55 fC (ãã§ã ãã¯ãŒãã³) ã®é»è·ãæã€é»åããŒã (1 keV) ãé»åéããç·åœ¢å éåšè£ 眮 (STEAM-linac) ãŸã§çŽ 300 mm ãééããŸããã ãããã®é»åã¯ã空éé»è·åã®åœ±é¿äžã§æ倧 1000 fs (ãã§ã ãç§) ãè¶ ããæç¶æéãŸã§èšåŒµããå¯èœæ§ããããŸãã
ãã®æéã§ã¯ãé»åããŒã ã¯åšæ³¢æ° 60 ps ã®å éå Žã®åæ³¢é·ã®çŽ 1,7% ãå ãããã®çµæãããŒã¯ã 115 keV ã§ãšãã«ã®ãŒååžã®åå€å¹ ãæã€å éåŸã®ãšãã«ã®ãŒ ã¹ãã¯ãã«ãåŸãããŸããã 60keVãè¶ ããïŒ3а).
ãããã®çµæãäºæ³ãããçµæãšæ¯èŒããããã«ãé»åãæé©ãªæ³šå ¥æéãšåæããŠããªãïŒã€ãŸããåæããŠããªãïŒå Žåã®ç·åœ¢å éåšãéãé»åäŒæã®ç¶æ³ãã·ãã¥ã¬ãŒãããŸããã ãã®ç¶æ³ãèšç®ãããšãé»åãšãã«ã®ãŒã®å¢å ã¯ããµããã³ç§ã®æéã¹ã±ãŒã«ã«è³ããŸã§ãæ³šå ¥ã®ç¬éã«å€§ããäŸåããããšãããããŸãã (3bïŒã ã€ãŸããæé©ãªèšå®ã§ã¯ãé»åã¯åå±€ã§ãã©ãã«ãæŸå°ã®å éã®å®å šãªåãµã€ã¯ã«ãçµéšããŸãïŒ3c).
é»åãç°ãªãæéã«å°çãããšãæåã®å±€ã§ã®å éãå°ãããªããé»åãæåã®å±€ãééããã®ã«æéãããããŸãã ãã®åŸãåŸç¶ã®ã¬ã€ã€ãŒã§éåæãå¢å ããæãŸãããªãé床ã®äœäžãåŒãèµ·ãããŸã (3d).
é»åããŒã ã®æéç延é·ã«ããæªåœ±é¿ãæå°éã«æããããã«ãæåã® STEAM ããã€ã¹ã¯å§çž®ã¢ãŒãã§åäœããŸããã ç·åœ¢å éåšã§ã®é»åããŒã ã®ç¶ç¶æéã¯ãã³ã³ãã¬ããµãŒã«äŸçµŠããããã©ãã«ããšãã«ã®ãŒã調æŽããç·åœ¢å éåšããããã¢ãŒãã«åãæ¿ããããšã«ãããæå°çŽ 350 fs (åå€å¹ ) ã«æé©åãããŸãã (4b).
ç»å #4
æå°ããŒã æç¶æéã¯ãå é»é°æ¥µ UV ãã«ã¹ã®æç¶æéã«åŸã£ãŠèšå®ãããçŽ 600 fs ã§ããã ã³ã³ãã¬ããµãŒãšã¹ããªããã®éã®è·é¢ãéèŠãªåœ¹å²ãæãããå¢ç²åã®é床ãå¶éããŸãã ãããã®å¯Ÿçãçµã¿åãããããšã§ãå éãã§ãŒãºã®æ³šå ¥ãã§ãŒãºã§ãã§ã ãç§ã®ç²ŸåºŠãå¯èœã«ãªããŸãã
ç»åäž 4а ç·åœ¢å éåšã§æé©åãããå éåŸã®å§çž®é»åããŒã ã®ãšãã«ã®ãŒåºããã¯ãéå§çž®é»åããŒã ãšæ¯èŒããŠçŽ 4 åæžå°ããããšãããããŸãã å éã«ãããå§çž®ãããŠããªãããŒã ãšã¯å¯Ÿç §çã«ãå§çž®ãããããŒã ã®ãšãã«ã®ãŒ ã¹ãã¯ãã«ã¯ããé«ããšãã«ã®ãŒã®æ¹ãžã·ããããŸãã å éåŸã®ãšãã«ã®ãŒ ã¹ãã¯ãã«ã®ããŒã¯ã¯çŽ 115 keV ã§ãé«ãšãã«ã®ãŒã®ããŒã«ã¯çŽ 125 keV ã«éããŸãã
ç§åŠè ã®æ§ãããªå£°æã«ããã°ããããã®æ°å€ã¯ãã©ãã«ãç¯å²ã«ãããæ°ããå éèšé²ïŒå éåã¯70keVã§ãã£ãïŒã§ããã
ãããããšãã«ã®ãŒã®åæ£ãæžããããã«ïŒ4а)ãããã«çãããŒã ãå®çŸããå¿ èŠããããŸãã
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